Articles | Volume 17, issue 7
https://doi.org/10.5194/bg-17-2135-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-17-2135-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 Apr 2020
Research article |
| 17 Apr 2020
| 17 Apr 2020
Predominance of hexamethylated 6-methyl branched glycerol dialkyl glycerol tetraethers in the Mariana Trench: source and environmental implication
Wenjie Xiao
Shanghai Engineering Research Center of Hadal Science &
Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai
201306, China
Yasong Wang
Shanghai Engineering Research Center of Hadal Science &
Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai
201306, China
Yongsheng Liu
Shanghai Engineering Research Center of Hadal Science &
Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai
201306, China
Xi Zhang
Shanghai Engineering Research Center of Hadal Science &
Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai
201306, China
Linlin Shi
Shanghai Engineering Research Center of Hadal Science &
Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai
201306, China
Shanghai Engineering Research Center of Hadal Science &
Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai
201306, China
Key Laboratory of Sustainable Exploitation of Oceanic Fisheries
Resources, Ministry of Education, Shanghai Ocean University, Shanghai
201306, China
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Yinghui Wang, Robert G. M. Spencer, David C. Podgorski, Anne M. Kellerman, Harunur Rashid, Phoebe Zito, Wenjie Xiao, Dandan Wei, Yuanhe Yang, and Yunping Xu
Biogeosciences, 15, 6637–6648, https://doi.org/10.5194/bg-15-6637-2018, https://doi.org/10.5194/bg-15-6637-2018, 2018
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With global warming, thawing of permafrost releases dissolved organic matter (DOM) into streams. By analyzing DOM along an alpine stream on the Qinghai–Tibet Plateau, we found DOM was mainly from the active layer, but with deepening of the active layer, the contribution of the deep permafrost layer increased, causing a change in the chemical composition of DOM. From the head- to downstream, DOM is undergoing rapid degradation, but some components are persistent and can be transported downstream.
Wenjie Xiao, Yinghui Wang, Shangzhe Zhou, Limin Hu, Huan Yang, and Yunping Xu
Biogeosciences, 13, 5883–5894, https://doi.org/10.5194/bg-13-5883-2016, https://doi.org/10.5194/bg-13-5883-2016, 2016
S. Ding, Y. Xu, Y. Wang, Y. He, J. Hou, L. Chen, and J.-S. He
Biogeosciences, 12, 3141–3151, https://doi.org/10.5194/bg-12-3141-2015, https://doi.org/10.5194/bg-12-3141-2015, 2015
L. Zhao, W. Wu, X. Xu, and Y. Xu
Biogeosciences, 11, 5103–5113, https://doi.org/10.5194/bg-11-5103-2014, https://doi.org/10.5194/bg-11-5103-2014, 2014
S. T. Belt, T. A. Brown, L. Ampel, P. Cabedo-Sanz, K. Fahl, J. J. Kocis, G. Massé, A. Navarro-Rodriguez, J. Ruan, and Y. Xu
Clim. Past, 10, 155–166, https://doi.org/10.5194/cp-10-155-2014, https://doi.org/10.5194/cp-10-155-2014, 2014
Related subject area
Biogeochemistry: Organic Biogeochemistry
Recently fixed carbon fuels microbial activity several meters below the soil surface
Environmental and hydrologic controls on sediment and organic carbon export from a subalpine catchment: insights from a time series
Climate and geology overwrite land use effects on soil organic nitrogen cycling on a continental scale
Compositions of dissolved organic matter in the ice-covered waters above the Aurora hydrothermal vent system, Gakkel Ridge, Arctic Ocean
Organic matter characteristics of a rapidly eroding permafrost cliff in NE Siberia (Lena Delta, Laptev Sea region)
Microbial labilization and diversification of pyrogenic dissolved organic matter
Bacterial and eukaryotic intact polar lipids point to in situ production as a key source of labile organic matter in hadal surface sediment of the Atacama Trench
What can we learn from amino acids about oceanic organic matter cycling and degradation?
Bacteriohopanetetrol-x: constraining its application as a lipid biomarker for marine anammox using the water column oxygen gradient of the Benguela upwelling system
Active and passive fluxes of carbon, nitrogen, and phosphorus in the northern South China Sea
Cyanobacteria net community production in the Baltic Sea as inferred from profiling pCO2 measurements
Reviews and syntheses: Heterotrophic fixation of inorganic carbon – significant but invisible flux in environmental carbon cycling
Revised fractional abundances and warm-season temperatures substantially improve brGDGT calibrations in lake sediments
Archaeal intact polar lipids in polar waters: a comparison between the Amundsen and Scotia seas
Reproducible determination of dissolved organic matter photosensitivity
Technical note: Uncovering the influence of methodological variations on the extractability of iron-bound organic carbon
Anthropocene climate warming enhances autochthonous carbon cycling in an upland Arctic lake, Disko Island, West Greenland
Novel hydrocarbon-utilizing soil mycobacteria synthesize unique mycocerosic acids at a Sicilian everlasting fire
Alkenone isotopes show evidence of active carbon concentrating mechanisms in coccolithophores as aqueous carbon dioxide concentrations fall below 7 µmol L−1
Seasonal variability and sources of in situ brGDGT production in a permanently stratified African crater lake
Sediment release of dissolved organic matter to the oxygen minimum zone off Peru
Better molecular preservation of organic matter in an oxic than in a sulfidic depositional environment: evidence from Thalassiphora pelagica (Dinoflagellata, Eocene) cysts
Assessing branched tetraether lipids as tracers of soil organic carbon transport through the Carminowe Creek catchment (southwest England)
The nonconservative distribution pattern of organic matter in the Rajang, a tropical river with peatland in its estuary
High-pH and anoxic conditions during soil organic matter extraction increases its electron-exchange capacity and ability to stimulate microbial Fe(III) reduction by electron shuttling
Sterol preservation in hypersaline microbial mats
Structural elucidation and environmental distributions of butanetriol and pentanetriol dialkyl glycerol tetraethers (BDGTs and PDGTs)
Distribution and degradation of terrestrial organic matter in the sediments of peat-draining rivers, Sarawak, Malaysian Borneo
Validation of carbon isotope fractionation in algal lipids as a pCO2 proxy using a natural CO2 seep (Shikine Island, Japan)
Composition and cycling of dissolved organic matter from tropical peatlands of coastal Sarawak, Borneo, revealed by fluorescence spectroscopy and parallel factor analysis
Latitudinal variations in δ30Si and δ15N signatures along the Peruvian shelf: quantifying the effects of nutrient utilization versus denitrification over the past 600 years
Diapycnal dissolved organic matter supply into the upper Peruvian oxycline
Composition and vertical flux of particulate organic matter to the oxygen minimum zone of the central Baltic Sea: impact of a sporadic North Sea inflow
Main drivers of transparent exopolymer particle distribution across the surface Atlantic Ocean
Biochemical and structural controls on the decomposition dynamics of boreal upland forest moss tissues
Spatiotemporal transformation of dissolved organic matter along an alpine stream flow path on the Qinghai–Tibet Plateau: importance of source and permafrost degradation
A quest for the biological sources of long chain alkyl diols in the western tropical North Atlantic Ocean
Long-chain diols in rivers: distribution and potential biological sources
Leaf wax n-alkanes in modern plants and topsoils from eastern Georgia (Caucasus) – implications for reconstructing regional paleovegetation
The role of diatom resting spores in pelagic–benthic coupling in the Southern Ocean
Calcium content and high calcium adaptation of plants in karst areas of southwestern Hunan, China
Substrate potential of last interglacial to Holocene permafrost organic matter for future microbial greenhouse gas production
Variation pattern of particulate organic carbon and nitrogen in oceans and inland waters
C5 glycolipids of heterocystous cyanobacteria track symbiont abundance in the diatom Hemiaulus hauckii across the tropical North Atlantic
Molecular fingerprinting of particulate organic matter as a new tool for its source apportionment: changes along a headwater drainage in coarse, medium and fine particles as a function of rainfalls
Variations and determinants of carbon content in plants: a global synthesis
The Holocene sedimentary record of cyanobacterial glycolipids in the Baltic Sea: an evaluation of their application as tracers of past nitrogen fixation
Technical note: An inverse method to relate organic carbon reactivity to isotope composition from serial oxidation
A mechanistic model of an upper bound on oceanic carbon export as a function of mixed layer depth and temperature
New molecular evidence for surface and sub-surface soil erosion controls on the composition of stream DOM during storm events
Andrea Scheibe, Carlos A. Sierra, and Marie Spohn
Biogeosciences, 20, 827–838, https://doi.org/10.5194/bg-20-827-2023, https://doi.org/10.5194/bg-20-827-2023, 2023
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We explored carbon cycling in soils in three climate zones in Chile down to a depth of 6 m, using carbon isotopes. Our results show that microbial activity several meters below the soil surface is mostly fueled by recently fixed carbon and that strong decomposition of soil organic matter only occurs in the upper decimeters of the soils. The study shows that different layers of the critical zone are tightly connected and that processes in the deep soil depend on recently fixed carbon.
Melissa Sophia Schwab, Hannah Gies, Chantal Valérie Freymond, Maarten Lupker, Negar Haghipour, and Timothy Ian Eglinton
Biogeosciences, 19, 5591–5616, https://doi.org/10.5194/bg-19-5591-2022, https://doi.org/10.5194/bg-19-5591-2022, 2022
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The majority of river studies focus on headwater or floodplain systems, while often neglecting intermediate river segments. Our study on the subalpine Sihl River bridges the gap between streams and lowlands and demonstrates that moderately steep river segments are areas of significant instream alterations, modulating the export of organic carbon over short distances.
Lisa Noll, Shasha Zhang, Qing Zheng, Yuntao Hu, Florian Hofhansl, and Wolfgang Wanek
Biogeosciences, 19, 5419–5433, https://doi.org/10.5194/bg-19-5419-2022, https://doi.org/10.5194/bg-19-5419-2022, 2022
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Cleavage of proteins to smaller nitrogen compounds allows microorganisms and plants to exploit the largest nitrogen reservoir in soils and is considered the bottleneck in soil organic nitrogen cycling. Results from soils covering a European transect show that protein turnover is constrained by soil geochemistry, shifts in climate and associated alterations in soil weathering and should be considered as a driver of soil nitrogen availability with repercussions on carbon cycle processes.
Muhammed Fatih Sert, Helge Niemann, Eoghan P. Reeves, Mats A. Granskog, Kevin P. Hand, Timo Kekäläinen, Janne Jänis, Pamela E. Rossel, Bénédicte Ferré, Anna Silyakova, and Friederike Gründger
Biogeosciences, 19, 2101–2120, https://doi.org/10.5194/bg-19-2101-2022, https://doi.org/10.5194/bg-19-2101-2022, 2022
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We investigate organic matter composition in the Arctic Ocean water column. We collected seawater samples from sea ice to deep waters at six vertical profiles near an active hydrothermal vent and its plume. In comparison to seawater, we found that the organic matter in waters directly affected by the hydrothermal plume had different chemical composition. We suggest that hydrothermal processes may influence the organic matter distribution in the deep ocean.
Charlotte Haugk, Loeka L. Jongejans, Kai Mangelsdorf, Matthias Fuchs, Olga Ogneva, Juri Palmtag, Gesine Mollenhauer, Paul J. Mann, P. Paul Overduin, Guido Grosse, Tina Sanders, Robyn E. Tuerena, Lutz Schirrmeister, Sebastian Wetterich, Alexander Kizyakov, Cornelia Karger, and Jens Strauss
Biogeosciences, 19, 2079–2094, https://doi.org/10.5194/bg-19-2079-2022, https://doi.org/10.5194/bg-19-2079-2022, 2022
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Buried animal and plant remains (carbon) from the last ice age were freeze-locked in permafrost. At an extremely fast eroding permafrost cliff in the Lena Delta (Siberia), we found this formerly frozen carbon well preserved. Our results show that ongoing degradation releases substantial amounts of this carbon, making it available for future carbon emissions. This mobilisation at the studied cliff and also similarly eroding sites bear the potential to affect rivers and oceans negatively.
Aleksandar I. Goranov, Andrew S. Wozniak, Kyle W. Bostick, Andrew R. Zimmerman, Siddhartha Mitra, and Patrick G. Hatcher
Biogeosciences, 19, 1491–1514, https://doi.org/10.5194/bg-19-1491-2022, https://doi.org/10.5194/bg-19-1491-2022, 2022
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Wildfire-derived molecules are ubiquitous in the aquatic environment, but their biological fate remains understudied. We have evaluated the compositional changes that occur to wildfire-derived molecules after incubation with soil microbes. We observe a significant degradation but also a production of numerous new labile molecules. Our results indicate that wildfire-derived molecules can be broken down and the carbon and nitrogen therein can be incorporated into microbial food webs.
Edgart Flores, Sebastian I. Cantarero, Paula Ruiz-Fernández, Nadia Dildar, Matthias Zabel, Osvaldo Ulloa, and Julio Sepúlveda
Biogeosciences, 19, 1395–1420, https://doi.org/10.5194/bg-19-1395-2022, https://doi.org/10.5194/bg-19-1395-2022, 2022
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In this study, we investigate the chemical diversity and abundance of microbial lipids as markers of organic matter sources in the deepest points of the Atacama Trench sediments and compare them to similar lipid stocks in shallower surface sediments and in the overlying water column. We evaluate possible organic matter provenance and some potential chemical adaptations of the in situ microbial community to the extreme conditions of high hydrostatic pressure in hadal realm.
Birgit Gaye, Niko Lahajnar, Natalie Harms, Sophie Anna Luise Paul, Tim Rixen, and Kay-Christian Emeis
Biogeosciences, 19, 807–830, https://doi.org/10.5194/bg-19-807-2022, https://doi.org/10.5194/bg-19-807-2022, 2022
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Amino acids were analyzed in a large number of samples of particulate and dissolved organic matter from coastal regions and the open ocean. A statistical analysis produced two new biogeochemical indicators. An indicator of sinking particle and sediment degradation (SDI) traces the degradation of organic matter from the surface waters into the sediments. A second indicator shows the residence time of suspended matter in the ocean (RTI).
Zoë R. van Kemenade, Laura Villanueva, Ellen C. Hopmans, Peter Kraal, Harry J. Witte, Jaap S. Sinninghe Damsté, and Darci Rush
Biogeosciences, 19, 201–221, https://doi.org/10.5194/bg-19-201-2022, https://doi.org/10.5194/bg-19-201-2022, 2022
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Anaerobic ammonium oxidation (anammox) is an important nitrogen-removal process in the ocean. We assess the distribution of bacteriohopanetetrol-x (BHT-x), used to trace past anammox, along a redox gradient in the water column of the Benguela upwelling system. BHT-x / BHT ratios of >0.18 correspond to the presence of living anammox bacteria and oxygen levels <50 μmol L−1. This allows for a more robust application of BHT-x to trace past marine anammox and deoxygenation in dynamic marine systems.
Jia-Jang Hung, Ching-Han Tung, Zong-Ying Lin, Yuh-ling Lee Chen, Shao-Hung Peng, Yen-Huei Lin, and Li-Shan Tsai
Biogeosciences, 18, 5141–5162, https://doi.org/10.5194/bg-18-5141-2021, https://doi.org/10.5194/bg-18-5141-2021, 2021
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We report measured active and passive fluxes and their controlling mechanisms in the northern South China Sea (NSCS). The total fluxes were higher than most reports in open oceans, indicating the significance of NSCS in atmospheric CO2 uptake and in storing that CO2 in the ocean’s interior. Winter cooling and extreme events enhanced nutrient availability and elevated fluxes. Global warming may have profound impacts on reducing ocean’s uptake and storage of CO2 in subtropical–tropical oceans.
Jens Daniel Müller, Bernd Schneider, Ulf Gräwe, Peer Fietzek, Marcus Bo Wallin, Anna Rutgersson, Norbert Wasmund, Siegfried Krüger, and Gregor Rehder
Biogeosciences, 18, 4889–4917, https://doi.org/10.5194/bg-18-4889-2021, https://doi.org/10.5194/bg-18-4889-2021, 2021
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Based on profiling pCO2 measurements from a field campaign, we quantify the biomass production of a cyanobacteria bloom in the Baltic Sea, the export of which would foster deep water deoxygenation. We further demonstrate how this biomass production can be accurately reconstructed from long-term surface measurements made on cargo vessels in combination with modelled temperature profiles. This approach enables a better understanding of a severe concern for the Baltic’s good environmental status.
Alexander Braun, Marina Spona-Friedl, Maria Avramov, Martin Elsner, Federico Baltar, Thomas Reinthaler, Gerhard J. Herndl, and Christian Griebler
Biogeosciences, 18, 3689–3700, https://doi.org/10.5194/bg-18-3689-2021, https://doi.org/10.5194/bg-18-3689-2021, 2021
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It is known that CO2 fixation by photoautotrophic organisms is the major sink from the atmosphere. While biologists are aware that CO2 fixation also occurs in heterotrophic organisms, this route of inorganic carbon, and its quantitative role, is hardly recognized in biogeochemistry. We demonstrate that a considerable amount of CO2 is fixed annually through anaplerotic reactions in heterotrophic organisms, and a significant quantity of inorganic carbon is temporally sequestered in biomass.
Jonathan H. Raberg, David J. Harning, Sarah E. Crump, Greg de Wet, Aria Blumm, Sebastian Kopf, Áslaug Geirsdóttir, Gifford H. Miller, and Julio Sepúlveda
Biogeosciences, 18, 3579–3603, https://doi.org/10.5194/bg-18-3579-2021, https://doi.org/10.5194/bg-18-3579-2021, 2021
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BrGDGT lipids are a proxy for temperature in lake sediments, but other parameters like pH can influence them, and seasonality can affect the temperatures they record. We find a warm-season bias at 43 new high-latitude sites. We also present a new method that deconvolves the effects of temperature, pH, and conductivity and generate global calibrations for these variables. Our study provides new paleoclimate tools, insight into brGDGTs at the biochemical level, and a new method for future study.
Charlotte L. Spencer-Jones, Erin L. McClymont, Nicole J. Bale, Ellen C. Hopmans, Stefan Schouten, Juliane Müller, E. Povl Abrahamsen, Claire Allen, Torsten Bickert, Claus-Dieter Hillenbrand, Elaine Mawbey, Victoria Peck, Aleksandra Svalova, and James A. Smith
Biogeosciences, 18, 3485–3504, https://doi.org/10.5194/bg-18-3485-2021, https://doi.org/10.5194/bg-18-3485-2021, 2021
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Long-term ocean temperature records are needed to fully understand the impact of West Antarctic Ice Sheet collapse. Glycerol dialkyl glycerol tetraethers (GDGTs) are powerful tools for reconstructing ocean temperature but can be difficult to apply to the Southern Ocean. Our results show active GDGT synthesis in relatively warm depths of the ocean. This research improves the application of GDGT palaeoceanographic proxies in the Southern Ocean.
Alec W. Armstrong, Leanne Powers, and Michael Gonsior
Biogeosciences, 18, 3367–3390, https://doi.org/10.5194/bg-18-3367-2021, https://doi.org/10.5194/bg-18-3367-2021, 2021
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Living things decay into organic matter, which can dissolve into water (like tea brewing). Tea receives its color by absorbing light. Similarly, this material absorbs light, which can then cause chemical reactions that change it. By measuring changes in these optical properties, we found that materials from some places are more sensitive to light than others. Comparing sensitivity to light helps us understand where these materials come from and what happens as they move through water.
Ben J. Fisher, Johan C. Faust, Oliver W. Moore, Caroline L. Peacock, and Christian März
Biogeosciences, 18, 3409–3419, https://doi.org/10.5194/bg-18-3409-2021, https://doi.org/10.5194/bg-18-3409-2021, 2021
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Organic carbon can be protected from microbial degradation in marine sediments through association with iron minerals on 1000-year timescales. Despite the importance of this carbon sink, our spatial and temporal understanding of iron-bound organic carbon interactions globally is poor. Here we show that caution must be applied when comparing quantification of iron-bound organic carbon extracted by different methods as the extraction strength and method specificity can be highly variable.
Mark A. Stevenson, Suzanne McGowan, Emma J. Pearson, George E. A. Swann, Melanie J. Leng, Vivienne J. Jones, Joseph J. Bailey, Xianyu Huang, and Erika Whiteford
Biogeosciences, 18, 2465–2485, https://doi.org/10.5194/bg-18-2465-2021, https://doi.org/10.5194/bg-18-2465-2021, 2021
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We link detailed stable isotope and biomarker analyses from the catchments of three Arctic upland lakes on Disko Island (West Greenland) to a recent dated sediment core to understand how carbon cycling has changed over the past ~500 years. We find that the carbon deposited in sediments in these upland lakes is predominately sourced from in-lake production due to the catchment's limited terrestrial vegetation and elevation and that recent increases in algal production link with climate change.
Nadine T. Smit, Laura Villanueva, Darci Rush, Fausto Grassa, Caitlyn R. Witkowski, Mira Holzheimer, Adriaan J. Minnaard, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 18, 1463–1479, https://doi.org/10.5194/bg-18-1463-2021, https://doi.org/10.5194/bg-18-1463-2021, 2021
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Soils from an everlasting fire (gas seep) in Sicily, Italy, reveal high relative abundances of novel uncultivated mycobacteria and unique 13C-depleted mycocerosic acids (multi-methyl branched fatty acids) close to the main gas seep. Our results imply that mycocerosic acids in combination with their depleted δ13C values offer a new biomarker tool to study the role of soil mycobacteria as hydrocarbon consumers in the modern and past global carbon cycle.
Marcus P. S. Badger
Biogeosciences, 18, 1149–1160, https://doi.org/10.5194/bg-18-1149-2021, https://doi.org/10.5194/bg-18-1149-2021, 2021
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Reconstructing ancient atmospheric CO2 is an important aim of palaeoclimate science in order to understand the Earth's climate system. One method, the alkenone proxy based on molecular fossils of coccolithophores, has been recently shown to be ineffective at low-to-moderate CO2 levels. In this paper I show that this is likely due to changes in the biogeochemistry of the coccolithophores when there is low carbon availability, but for much of the Cenozoic the alkenone proxy should have utility.
Loes G. J. van Bree, Francien Peterse, Allix J. Baxter, Wannes De Crop, Sigrid van Grinsven, Laura Villanueva, Dirk Verschuren, and Jaap S. Sinninghe Damsté
Biogeosciences, 17, 5443–5463, https://doi.org/10.5194/bg-17-5443-2020, https://doi.org/10.5194/bg-17-5443-2020, 2020
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Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are used as a paleothermometer based on their temperature dependence in global soils, but aquatic production complicates their use in lakes. BrGDGTs in the water column of Lake Chala, East Africa, respond to oxygen conditions and mixing. Changes in their signal can be linked to bacterial community composition rather than membrane adaptation to changing conditions. Their integrated signal in the sediment reflects mean air temperature.
Alexandra N. Loginova, Andrew W. Dale, Frédéric A. C. Le Moigne, Sören Thomsen, Stefan Sommer, David Clemens, Klaus Wallmann, and Anja Engel
Biogeosciences, 17, 4663–4679, https://doi.org/10.5194/bg-17-4663-2020, https://doi.org/10.5194/bg-17-4663-2020, 2020
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We measured dissolved organic carbon (DOC), nitrogen (DON) and matter (DOM) optical properties in pore waters and near-bottom waters of the eastern tropical South Pacific off Peru. The difference between diffusion-driven and net fluxes of DOC and DON and qualitative changes in DOM optical properties suggested active microbial utilisation of the released DOM at the sediment–water interface. Our results suggest that the sediment release of DOM contributes to microbial processes in the area.
Gerard J. M. Versteegh, Alexander J. P. Houben, and Karin A. F. Zonneveld
Biogeosciences, 17, 3545–3561, https://doi.org/10.5194/bg-17-3545-2020, https://doi.org/10.5194/bg-17-3545-2020, 2020
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Anoxic sediments mostly contain much more organic matter than oxic ones, and therefore organic matter in anoxic settings is often considered to be preserved better than in oxic settings. However, through the analysis of the same fossil dinoflagellate cyst species from both oxic and anoxic settings, we show that at a molecular level the preservation in the oxic sediments may be better since in the anoxic setting the cyst macromolecule has been altered by postdepositional modification.
Jingjing Guo, Miriam Glendell, Jeroen Meersmans, Frédérique Kirkels, Jack J. Middelburg, and Francien Peterse
Biogeosciences, 17, 3183–3201, https://doi.org/10.5194/bg-17-3183-2020, https://doi.org/10.5194/bg-17-3183-2020, 2020
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The fluxes of soil organic carbon (OC) transport from land to sea are poorly constrained, mostly due to the lack of a specific tracer for soil OC. Here we evaluate the use of specific molecules derived from soil bacteria as a tracer for soil OC in a small river catchment. We find that the initial soil signal is lost upon entering the aquatic environment. However, the local environmental history of the catchment is reflected by these molecules in the lake sediments that act as their sink.
Zhuo-Yi Zhu, Joanne Oakes, Bradley Eyre, Youyou Hao, Edwin Sien Aun Sia, Shan Jiang, Moritz Müller, and Jing Zhang
Biogeosciences, 17, 2473–2485, https://doi.org/10.5194/bg-17-2473-2020, https://doi.org/10.5194/bg-17-2473-2020, 2020
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Samples were collected in August 2016 in the Rajang River and its estuary, with tropical forest in the river basin and peatland in the estuary. Organic matter composition was influenced by transportation in the river basin, whereas peatland added clear biodegraded parts to the fluvial organic matter, which implies modification of the initial lability and/or starting points in the subsequent degradation and alternation processes after the organic matter enters the sea.
Yuge Bai, Edisson Subdiaga, Stefan B. Haderlein, Heike Knicker, and Andreas Kappler
Biogeosciences, 17, 683–698, https://doi.org/10.5194/bg-17-683-2020, https://doi.org/10.5194/bg-17-683-2020, 2020
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Biogeochemical processes of SOM are key for greenhouse gas emission and water quality. We extracted SOM by water or by NaOH–HCl under oxic–anoxic conditions. Chemical and anoxic extractions lead to higher SOM electron exchange capacities, resulting in stimulation of microbial Fe(III) reduction. Therefore, aqueous pH-neutral SOM extracts should be used to reflect environmental SOM redox processes, and artifacts of chemical extractions need to be considered when evaluating SOM redox processes.
Yan Shen, Volker Thiel, Pablo Suarez-Gonzalez, Sebastiaan W. Rampen, and Joachim Reitner
Biogeosciences, 17, 649–666, https://doi.org/10.5194/bg-17-649-2020, https://doi.org/10.5194/bg-17-649-2020, 2020
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Today, sterols are widespread in plants, animals, and fungi but are almost absent in the oldest rocks. Microbial mats, representing the earliest complex ecosystems on Earth, were omnipresent in Precambrian marine environments and may have degraded the sterols at that time. Here we analyze the distribution of sterols through a microbial mat. This provides insight into how variations in biological and nonbiological factors affect the preservation of sterols in modern and ancient microbial mats.
Sarah Coffinet, Travis B. Meador, Lukas Mühlena, Kevin W. Becker, Jan Schröder, Qing-Zeng Zhu, Julius S. Lipp, Verena B. Heuer, Matthew P. Crump, and Kai-Uwe Hinrichs
Biogeosciences, 17, 317–330, https://doi.org/10.5194/bg-17-317-2020, https://doi.org/10.5194/bg-17-317-2020, 2020
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This study deals with two membrane lipids called BDGTs and PDGTs. Membrane lipids are molecules forming the cell envelope of all organisms. Different organisms produce different lipids thus they can be used to detect the presence of specific organisms in the environment. We analyzed the structure of these new lipids and looked for potential producers. We found that they are likely made by microbes emitting methane below the sediment surface and could be used to track these specific microbes.
Ying Wu, Kun Zhu, Jing Zhang, Moritz Müller, Shan Jiang, Aazani Mujahid, Mohd Fakharuddin Muhamad, and Edwin Sien Aun Sia
Biogeosciences, 16, 4517–4533, https://doi.org/10.5194/bg-16-4517-2019, https://doi.org/10.5194/bg-16-4517-2019, 2019
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Our understanding of terrestrial organic matter (TOM) in tropical peat-draining rivers remains limited, especially in Southeast Asia. We explored the characteristics of TOM via bulk parameters and lignin phenols of sediment in Malaysia. This showed that the most important plant source of the organic matter in these rivers is woody angiosperm C3 plants with limited diagenetic alteration. This slower degradation of TOM may be a link to higher total nitrogen content, especially for the small river.
Caitlyn R. Witkowski, Sylvain Agostini, Ben P. Harvey, Marcel T. J. van der Meer, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 16, 4451–4461, https://doi.org/10.5194/bg-16-4451-2019, https://doi.org/10.5194/bg-16-4451-2019, 2019
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Carbon dioxide concentrations (pCO2) in the atmosphere play an integral role in Earth system dynamics, especially climate. Past climates help us understand future ones, but reconstructing pCO2 over the geologic record remains a challenge. This research demonstrates new approaches for exploring past pCO2 via the carbon isotope fractionation in general algal lipids, which we test over a high CO2 gradient from a naturally occurring CO2 seep.
Yongli Zhou, Patrick Martin, and Moritz Müller
Biogeosciences, 16, 2733–2749, https://doi.org/10.5194/bg-16-2733-2019, https://doi.org/10.5194/bg-16-2733-2019, 2019
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We found that peatlands in coastal Sarawak, Borneo, export extremely humified organic matter, which dominates the riverine organic matter pool and conservatively mixes with seawater, while the freshly produced fraction is low and stable in concentration at all salinities. We estimated that terrigenous fractions, which showed high photolability, still account for 20 % of the coastal dissolved organic carbon pool, implying the importance of peat-derived organic matter in the coastal carbon cycle.
Kristin Doering, Claudia Ehlert, Philippe Martinez, Martin Frank, and Ralph Schneider
Biogeosciences, 16, 2163–2180, https://doi.org/10.5194/bg-16-2163-2019, https://doi.org/10.5194/bg-16-2163-2019, 2019
Alexandra N. Loginova, Sören Thomsen, Marcus Dengler, Jan Lüdke, and Anja Engel
Biogeosciences, 16, 2033–2047, https://doi.org/10.5194/bg-16-2033-2019, https://doi.org/10.5194/bg-16-2033-2019, 2019
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High primary production in the Peruvian upwelling system is followed by rapid heterotrophic utilization of organic matter and supports the formation of one of the most intense oxygen minimum zones (OMZs) in the world. Here, we estimated vertical fluxes of oxygen and dissolved organic matter (DOM) from the surface to the OMZ. Our results suggest that DOM remineralization substantially reduces oxygen concentration in the upper water column and controls the shape of the upper oxycline.
Carolina Cisternas-Novoa, Frédéric A. C. Le Moigne, and Anja Engel
Biogeosciences, 16, 927–947, https://doi.org/10.5194/bg-16-927-2019, https://doi.org/10.5194/bg-16-927-2019, 2019
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We investigate the composition and vertical fluxes of POM in two deep basins of the Baltic Sea (GB: Gotland Basin and LD: Landsort Deep). The two basins showed different O2 regimes resulting from the intrusion of oxygen-rich water from the North Sea that ventilated the deep waters in GB, but not in LD.
In GB, O2 intrusions lead to a high abundance of manganese oxides that aggregate with POM, altering its composition and vertical flux and contributing to a higher POC transfer efficiency in GB.
Marina Zamanillo, Eva Ortega-Retuerta, Sdena Nunes, Pablo Rodríguez-Ros, Manuel Dall'Osto, Marta Estrada, Maria Montserrat Sala, and Rafel Simó
Biogeosciences, 16, 733–749, https://doi.org/10.5194/bg-16-733-2019, https://doi.org/10.5194/bg-16-733-2019, 2019
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Many marine microorganisms produce polysaccharide-rich transparent exopolymer particles (TEPs) for rather unknown reasons but with important consequences for the ocean carbon cycle, sea–air gas exchange and formation of organic aerosols. Here we compare surface–ocean distributions of TEPs and physical, chemical and biological variables along a N–S transect in the Atlantic Ocean. Our data suggest that phytoplankton and not bacteria are the main TEP producers, and solar radiation acts as a sink.
Michael Philben, Sara Butler, Sharon A. Billings, Ronald Benner, Kate A. Edwards, and Susan E. Ziegler
Biogeosciences, 15, 6731–6746, https://doi.org/10.5194/bg-15-6731-2018, https://doi.org/10.5194/bg-15-6731-2018, 2018
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We explored the relationship between chemical composition and the temperature sensitivity of moss decomposition using 959-day lab incubations. Mass loss was low despite the predominance of carbohydrates, indicating the persistence of labile C. Scanning electron microscopy revealed little change in the moss cell-wall structure. These results suggest that the moss cell-wall matrix protects labile C from decomposition, contributing to the globally important stocks of moss-derived C.
Yinghui Wang, Robert G. M. Spencer, David C. Podgorski, Anne M. Kellerman, Harunur Rashid, Phoebe Zito, Wenjie Xiao, Dandan Wei, Yuanhe Yang, and Yunping Xu
Biogeosciences, 15, 6637–6648, https://doi.org/10.5194/bg-15-6637-2018, https://doi.org/10.5194/bg-15-6637-2018, 2018
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With global warming, thawing of permafrost releases dissolved organic matter (DOM) into streams. By analyzing DOM along an alpine stream on the Qinghai–Tibet Plateau, we found DOM was mainly from the active layer, but with deepening of the active layer, the contribution of the deep permafrost layer increased, causing a change in the chemical composition of DOM. From the head- to downstream, DOM is undergoing rapid degradation, but some components are persistent and can be transported downstream.
Sergio Balzano, Julie Lattaud, Laura Villanueva, Sebastiaan W. Rampen, Corina P. D. Brussaard, Judith van Bleijswijk, Nicole Bale, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 15, 5951–5968, https://doi.org/10.5194/bg-15-5951-2018, https://doi.org/10.5194/bg-15-5951-2018, 2018
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We tried to identify the microbes which biosynthesize a class of lipids widespread in seawater, the long chain alkyl diols (LCDs). We could not find any microorganism likely involved in the production of LCDs. The amounts of LCDs found are too high to be produced by living organisms and are likely to be part of the refractory organic matter persisting for long periods in the water column.
Julie Lattaud, Frédérique Kirkels, Francien Peterse, Chantal V. Freymond, Timothy I. Eglinton, Jens Hefter, Gesine Mollenhauer, Sergio Balzano, Laura Villanueva, Marcel T. J. van der Meer, Ellen C. Hopmans, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 15, 4147–4161, https://doi.org/10.5194/bg-15-4147-2018, https://doi.org/10.5194/bg-15-4147-2018, 2018
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Long-chain diols (LCDs) are biomarkers that occur widespread in marine environments and also in lakes and rivers. In this study, we looked at the distribution of LCDs in three river systems (Godavari, Danube, and Rhine) in relation to season, precipitation, and temperature. We found out that the LCDs are likely being produced in calm areas of the river systems and that marine LCDs have a different distribution than riverine LCDs.
Marcel Bliedtner, Imke K. Schäfer, Roland Zech, and Hans von Suchodoletz
Biogeosciences, 15, 3927–3936, https://doi.org/10.5194/bg-15-3927-2018, https://doi.org/10.5194/bg-15-3927-2018, 2018
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In this study, we systematically analyze leaf wax derived n-alkane patterns in eastern Georgia to test their potential for paleoenvironmental reconstructions in the semi-humid to semi-arid central southern Caucasus region. We investigated the influence of vegetation types on the leaf wax signal in modern plants and topsoil material. Our results show distinct and systematic differences in the n-alkane patterns between vegetation types and prove their potential for vegetation reconstructions.
Mathieu Rembauville, Stéphane Blain, Clara Manno, Geraint Tarling, Anu Thompson, George Wolff, and Ian Salter
Biogeosciences, 15, 3071–3084, https://doi.org/10.5194/bg-15-3071-2018, https://doi.org/10.5194/bg-15-3071-2018, 2018
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Sinking phytoplankton from the surface ocean provide the principal energy source to deep-ocean ecosystems. Our aim was to understand how different phytoplankton communities impact the chemical nature of this sinking material. We show certain types of phytoplankton can preferentially export energy-rich storage compounds to the seafloor. Any climate-driven effects on phytoplankton community structure could thus impact remote deep-ocean ecosystems thousands of kilometres beneath the surface.
Xiaocong Wei, Xiangwen Deng, Wenhua Xiang, Pifeng Lei, Shuai Ouyang, Hongfang Wen, and Liang Chen
Biogeosciences, 15, 2991–3002, https://doi.org/10.5194/bg-15-2991-2018, https://doi.org/10.5194/bg-15-2991-2018, 2018
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Karst is a kind of typical calcium-rich environment, which is widely distributed. We measured the Ca2+ content of 41 plant species, as well as soil total Ca2+ and exchange Ca2+. We found out that different plants have different ways to high Ca2+ adaptation. According to the different high Ca2+ adaptation of the 17 dominant species, we divided them into 3 categories: Ca-indifferent plants, high-Ca plants and low-Ca plants. Our results can provide a theoretical basis for vegetation restoration.
Janina G. Stapel, Georg Schwamborn, Lutz Schirrmeister, Brian Horsfield, and Kai Mangelsdorf
Biogeosciences, 15, 1969–1985, https://doi.org/10.5194/bg-15-1969-2018, https://doi.org/10.5194/bg-15-1969-2018, 2018
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Climate warming in the Arctic results in thawing of permafrost deposits. This promotes the accessibility of freeze-locked old organic matter (OM) accumulated during the past. Characterizing OM of different depositional ages, we were able to show that OM from last glacial Yedoma deposits possess the highest potential to provide organic substrates such as acetate for microbial greenhouse gas production and therefore to accelerate the carbon–climate feedback cycle during ongoing global warming.
Changchun Huang, Quanliang Jiang, Ling Yao, Hao Yang, Chen Lin, Tao Huang, A-Xing Zhu, and Yimin Zhang
Biogeosciences, 15, 1827–1841, https://doi.org/10.5194/bg-15-1827-2018, https://doi.org/10.5194/bg-15-1827-2018, 2018
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The latitudinal dependency of POC / PON in ocean and inland water is significant, regulated by trophic state and climate, etc. factors. POC / PON significantly increased from coastal water (6.89 ± 2.38) to open ocean (7.59 ± 4.22) with the increasing rate of 0.0024 / km. The re-examination of the global relationship between, and variations in, POC and PON could be important for the global and regional coupling between the carbon and nitrogen cycles in the ocean and freshwater.
Nicole J. Bale, Tracy A. Villareal, Ellen C. Hopmans, Corina P. D. Brussaard, Marc Besseling, Denise Dorhout, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 15, 1229–1241, https://doi.org/10.5194/bg-15-1229-2018, https://doi.org/10.5194/bg-15-1229-2018, 2018
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Associations between diatoms and N-fixing cyanobacteria (diatom–diazotroph associations, DDAs) play an important role in the N cycle of the tropical North Atlantic. Heterocysts are the site of N fixation and contain unique glycolipids. We measured these glycolipids in the water column and surface sediment from the tropical North Atlantic. We found a significant correlation between the concentration of glycolipid and of DDAs, strengthening their application as biomarkers.
Laurent Jeanneau, Richard Rowland, and Shreeram Inamdar
Biogeosciences, 15, 973–985, https://doi.org/10.5194/bg-15-973-2018, https://doi.org/10.5194/bg-15-973-2018, 2018
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The source of particulate organic matter in headwaters during storm events remains an open question. We use the molecular composition of organic matter sampled during four spring–summer storms and compare it to potential sources. We identify litter, streambed and vicinal soils as the main sources of particulate organic matter. Their proportions depend on (i) the size of the catchment and (ii) the rain event.
Suhui Ma, Feng He, Di Tian, Dongting Zou, Zhengbing Yan, Yulong Yang, Tiancheng Zhou, Kaiyue Huang, Haihua Shen, and Jingyun Fang
Biogeosciences, 15, 693–702, https://doi.org/10.5194/bg-15-693-2018, https://doi.org/10.5194/bg-15-693-2018, 2018
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Plant carbon (C) content is critical to the assessment of the global C cycle. Our results showed that the global average C contents in organs were significantly lower than a canonical value of 50 %. Plant C content tended to decrease with increasing latitude, and life form explained more variation than climate. Our findings suggest that specific C content values of different organs and life forms should be incorporated into the estimations of regional and global vegetation biomass C stocks.
Martina Sollai, Ellen C. Hopmans, Nicole J. Bale, Anchelique Mets, Lisa Warden, Matthias Moros, and Jaap S. Sinninghe Damsté
Biogeosciences, 14, 5789–5804, https://doi.org/10.5194/bg-14-5789-2017, https://doi.org/10.5194/bg-14-5789-2017, 2017
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The Baltic Sea is characterized by recurring summer phytoplankton blooms, dominated by a few cyanobacterial species. These bacteria are able to use dinitrogen gas as the source for nitrogen and produce very specific lipids. We analyzed these lipids in a sediment core to study their presence over the past 7000 years. This reveals that cyanobacterial blooms have not only occurred in the last decades but were common at times when the Baltic was connected to the North Sea.
Jordon D. Hemingway, Daniel H. Rothman, Sarah Z. Rosengard, and Valier V. Galy
Biogeosciences, 14, 5099–5114, https://doi.org/10.5194/bg-14-5099-2017, https://doi.org/10.5194/bg-14-5099-2017, 2017
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The balance between organic matter (OM) fixation and decay is a major control on atmospheric CO2 concentrations. Understanding the environmental, chemical, and physical mechanisms that control the distribution of OM decay rates is therefore critical for constraining the global carbon cycle. In this manuscript, we derive a method to relate OM reactivity to its isotope composition using a kinetic model and provide a novel framework to discern the controls on OM decay rates.
Zuchuan Li and Nicolas Cassar
Biogeosciences, 14, 5015–5027, https://doi.org/10.5194/bg-14-5015-2017, https://doi.org/10.5194/bg-14-5015-2017, 2017
Marie Denis, Laurent Jeanneau, Patrice Petitjean, Anaëlle Murzeau, Marine Liotaud, Louison Yonnet, and Gérard Gruau
Biogeosciences, 14, 5039–5051, https://doi.org/10.5194/bg-14-5039-2017, https://doi.org/10.5194/bg-14-5039-2017, 2017
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The results of this study highlight the changes of DOM composition in soil solutions and surface runoff, probably controlled by water-table dynamics and pre-event hydrological conditions. These changes should be taken into account for a better understanding of micropollutant mobility. Moreover, this work has implications for modeling DOM export in headwater catchments, as many studies assume that DOM transfer during storm events consists of the flushing of pre-existing soil solution DOM.
Cited articles
Buckles, L. K., Weijers, J. W. H., Verschuren, D., and Sinninghe Damsté,
J. S.: Sources of core and intact branched tetraether membrane lipids in the
lacustrine environment: Anatomy of Lake Challa and its catchment, equatorial
East Africa, Geochim. Cosmochim. Ac., 140, 106–126,
https://doi.org/10.1016/j.gca.2014.04.042, 2014.
Dang, X., Yang, H., Naafs, B. D. A., Pancost, R. D., and Xie, S.: Evidence of
moisture control on the methylation of branched glycerol dialkyl glycerol
tetraethers in semi-arid and arid soils, Geochim. Cosmochim. Ac., 189,
24–36, https://doi.org/10.1016/j.gca.2016.06.004, 2016a.
Dang, X. Y., Xue, J. T., Yang, H., and Xie, S.C.: Environmental impacts on the
distribution of microbial tetraether lipids in Chinese lakes with
contrasting pH: Implications for lacustrine paleoenvironmental
reconstructions, Sci. China Earth Sci., 59, 939–950,
https://doi.org/10.1007/s11430-015-5234-z, 2016b.
Dang, X., Ding, W., Yang, H., Pancost, R. D., Naafs, B. D. A., Xue, J., Xiao,
L., Lu, J., and Xie, S.: Different temperature dependence of the bacterial
brGDGT isomers in 35 Chinese lake sediments compared to that in soils, Org.
Geochem., 119, 72–79, https://doi.org/10.1016/j.orggeochem.2018.02.008,
2018.
Dearing Crampton-Flood, E., Peterse, F., Munsterman, D., and Sinninghe
Damsté, J. S.: Using tetraether lipids archived in North Sea Basin
sediments to extract North Western European Pliocene continental air
temperatures, Earth Planet. Sc. Lett., 490, 193–205,
https://doi.org/10.1016/j.epsl.2018.03.030, 2018.
De Jonge, C., Hopmans, E. C., Stadnitskaia, A., Rijpstra, W. I. C., Hofland,
R., Tegelaar, E., and Sinninghe Damsté, J. S.: Identification of novel
penta- and hexamethylated branched glycerol dialkyl glycerol tetraethers in
peat using HPLC–MS2, GC–MS and GC–SMB-MS, Org. Geochem., 54, 78–82,
https://doi.org/10.1016/j.orggeochem.2012.10.004, 2013.
De Jonge, C., Hopmans, E. C., Zell, C. I., Kim, J.-H., Schouten, S., and
Sinninghe Damsté, J. S.: Occurrence and abundance of 6-methyl branched
glycerol dialkyl glycerol tetraethers in soils: Implications for
palaeoclimate reconstruction, Geochim. Cosmochim. Ac., 141, 97–112,
https://doi.org/10.1016/j.gca.2014.06.013, 2014a.
De Jonge, C., Stadnitskaia, A., Hopmans, E. C., Cherkashov, G., Fedotov, A.,
and Sinninghe Damsté, J. S.: In situ produced branched glycerol dialkyl
glycerol tetraethers in suspended particulate matter from the Yenisei River,
Eastern Siberia, Geochim. Cosmochim. Ac., 125, 476–491,
https://doi.org/10.1016/j.gca.2013.10.031, 2014b.
De Jonge, C., Stadnitskaia, A., Hopmans, E. C., Cherkashov, G., Fedotov, A.,
Streletskaya, I. D., Vasiliev, A. A., and Sinninghe Damsté, J. S.: Drastic
changes in the distribution of branched tetraether lipids in suspended
matter and sediments from the Yenisei River and Kara Sea (Siberia):
Implications for the use of brGDGT-based proxies in coastal marine
sediments, Geochim. Cosmochim. Ac., 165, 200–225,
https://doi.org/10.1016/j.gca.2015.05.044, 2015.
De Jonge, C., Stadnitskaia, A., Cherkashov, G., and Sinninghe Damsté,
J. S.: Branched glycerol dialkyl glycerol tetraethers and crenarchaeol record
post-glacial sea level rise and shift in source of terrigenous brGDGTs in
the Kara Sea (Arctic Ocean), Org. Geochem., 92, 42–54,
https://doi.org/10.1016/j.orggeochem.2015.11.009, 2016.
De Rosa, M. and Gambacorta, A.: The lipids of archaebacteria, Prog. Lipid
Res., 27, 153–175, https://doi.org/10.1016/0163-7827(88)90011-2, 1988.
Ding, S., Xu, Y., Wang, Y., He, Y., Hou, J., Chen, L., and He, J.-S.: Distribution of branched glycerol dialkyl glycerol tetraethers in surface soils of the Qinghai–Tibetan Plateau: implications of brGDGTs-based proxies in cold and dry regions, Biogeosciences, 12, 3141–3151, https://doi.org/10.5194/bg-12-3141-2015, 2015.
Ding, S., Schwab, V. F., Ueberschaar, N., Roth, V. N., Lange, M., Xu, Y.,
Gleixner, G., and Pohnert, G.: Identification of novel 7-methyl and
cyclopentanyl branched glycerol dialkyl glycerol tetraethers in lake
sediments, Org. Geochem., 102, 52–58,
https://doi.org/10.1016/j.orggeochem.2016.09.009, 2016.
Freymond, C. V., Peterse, F., Fischer, L. V., Filip, F., Giosan, L., and
Eglinton, T. I.: Branched GDGT signals in fluvial sediments of the Danube
River basin: Method comparison and longitudinal evolution, Org. Geochem.,
103, 88–96, https://doi.org/10.1016/j.orggeochem.2016.11.002, 2016.
Fryer, P.: Evolution of the Mariana Convergent Plate Margin System, Rev. Geophys., 34, 89–125, https://doi.org/10.1029/95RG03476, 1996.
Glud, R. N., Wenzhofer, F., Middelboe, M., Oguri, K., Turnewitsch, R.,
Canfield, D. E., and Kitazato, H.: High rates of microbial carbon turnover in
sediments in the deepest oceanic trench on Earth, Nat. Geosci., 6, 284–288,
https://doi.org/10.1038/ngeo1773, 2013.
Goñi, M. A., Monacci, N., Gisewhite, R., Ogston, A., Crockett, J., and
Nittrouer, C.: Distribution and sources of particulate organic matter in the
water column and sediments of the Fly River Delta, Gulf of Papua (Papua New
Guinea), Estuar. Coast. Shelf S., 69, 225–245,
https://doi.org/10.1016/j.ecss.2006.04.012, 2006.
Guan, H., Chen, L., Luo, M., Liu, L., Mao, S., Ge, H., Zhang, M., Fang, J.,
and Chen, D.: Composition and origin of lipid biomarkers in the surface
sediments from the southern Challenger Deep, Mariana Trench, Geosci. Front.,
10, 351–360, https://doi.org/10.1016/j.gsf.2018.01.004, 2019.
Herfort, L., Schouten, S., Boon, J. P., Woltering, M., Baas, M., Weijers,
J. W. H., and Sinninghe Damsté, J. S.: Characterization of transport and
deposition of terrestrial organic matter in the southern North Sea using the
BIT index, Limnol. Oceanogr., 51, 2196–2205,
https://doi.org/10.4319/lo.2006.51.5.2196, 2006.
Hopmans, E. C., Weijers, J. W. H., Schefuss, E., Herfort, L., Sinninghe
Damsté, J. S., and Schouten, S.: A novel proxy for terrestrial organic
matter in sediments based on branched and isoprenoid tetraether lipids,
Earth Planet. Sc. Lett., 224, 107–116,
https://doi.org/10.1016/j.epsl.2004.05.012, 2004.
Hopmans, E. C., Schouten, S., and Sinninghe Damsté, J. S.: The effect of
improved chromatography on GDGT-based palaeoproxies, Org. Geochem., 93, 1–6,
https://doi.org/10.1016/j.orggeochem.2015.12.006, 2016.
Hu, L., Shi, X., Bai, Y., Qiao, S., Li, L., Yu, Y., Yang, G., Ma, D., and
Guo, Z.: Recent organic carbon sequestration in the shelf sediments of the
Bohai Sea and Yellow Sea, China, J. Marine Syst., 155, 50–58,
https://doi.org/10.1016/j.jmarsys.2015.10.018, 2016.
Huguet, C., Hopmans, E. C., Feboayala, W., Thompson, D. H., Sinninghe Damsté, J. S., and Schouten, S.: An improved method to determine the absolute abundance of glycerol dibiphytanyl glycerol tetraether lipids, Org. Geochem., 37, 1036–1041, https://doi.org/10.1016/j.orggeochem.2006.05.008, 2006.
Husar, R. B., Tratt, D. M., Schichtel, B. A., Falke, S. R., Li, F., Jaffe, D.,
Gassó, S., Gill, T., Laulainen, N. S., Lu, F., Reheis, M. C., Chun, Y.,
Westphal, D., Holben, B. N., Gueymard, C., McKendry, I., Kuring, N., Feldman,
G. C., McClain, C., Frouin, R. J., Merrill, J., DuBois, D., Vignola, F.,
Murayama, T., Nickovic, S., Wilson, W. E., Sassen, K., Sugimoto, N., and Malm,
W. C.: Asian dust events of April 1998, J. Geophys. Res.-Atmos., 106,
18317–18330, https://doi.org/10.1029/2000JD900788, 2001.
Jamieson, A.: The hadal zone: life in the deepest oceans, Cambridge
University Press, UK, 2015.
Kim, J. H., Schouten, S., Buscail, R., Ludwig, W., Bonnin, J., Sinninghe
Damsté, J. S., and Bourrin, F.: Origin and distribution of terrestrial
organic matter in the NW Mediterranean (Gulf of Lions): Exploring the newly
developed BIT index, Geochem. Geophy. Geosy., 7, 220–222,
https://doi.org/10.1029/2006GC001306, 2006.
Knappy, C. S., Nunn, C. E. M., Morgan, H. W., and Keely, B. J.: The major lipid
cores of the archaeon Ignisphaera aggregans: implications for the phylogeny
and biosynthesis of glycerol monoalkyl glycerol tetraether isoprenoid
lipids, Extremophiles, 15, 517–528, https://doi.org/10.1007/s00792-011-0382-3,
2011.
Lei, Y., Yang, H., Dang, X., Zhao, S., and Xie, S.: Absence of a significant
bias towards summer temperature in branched tetraether-based
paleothermometer at two soil sites with contrasting temperature seasonality,
Org. Geochem., 94, 83–94, https://doi.org/10.1016/j.orggeochem.2016.02.003,
2016.
Li, J., Naafs, B. D. A., Pancost, R. D., Yang, H., Deng, L., and Xie, S.:
Distribution of branched tetraether lipids in ponds from Inner Mongolia, NE
China: Insight into the source of brGDGTs, Org. Geochem., 112, 127–136,
https://doi.org/10.1016/j.orggeochem.2017.07.005, 2017.
Li, Y., Zhao, S., Pei, H., Shi, Q., Zang, J., Dang, X., and Yang, H.:
Distribution of glycerol dialkyl glycerol tetraethers in surface soils along
an altitudinal transect at cold and humid Mountain Changbai: Implications
for the reconstruction of paleoaltimetry and paleoclimate, Sci. China Earth
Sci., 61, 925–939, https://doi.org/10.1007/s11430-017-9168-9, 2018.
Liu, J., Zheng, Y., Lin, H., Wang, X., Li, M., Liu, Y., Yu, M., Zhao, M.,
Pedentchouk, N., Lea-Smith, D. J., Todd, J. D., Magill, C. R., Zhang, W.-J.,
Zhou, S., Song, D., Zhong, H., Xin, Y., Yu, M., Tian, J., and Zhang, X.-H.:
Proliferation of hydrocarbon-degrading microbes at the bottom of the Mariana
Trench, Microbiome, 7, 47, https://doi.org/10.1186/s40168-019-0652-3, 2019.
Liu, X., Zhu, C., Wakeham, S. G., and Hinrichs, K.: In situ production of
branched glycerol dialkyl glycerol tetraethers in anoxic marine water
columns, Mar. Chem., 166, 1–8,
https://doi.org/10.1016/j.marchem.2014.08.008, 2014.
Loomis, S. E., Russell, J. M., and Sinninghe Damsté, J. S.: Distributions of
branched GDGTs in soils and lake sediments from western Uganda: Implications
for a lacustrine paleothermometer, Org. Geochem., 42, 739–751,
https://doi.org/10.1016/j.orggeochem.2011.06.004, 2011.
Luo, M., Gieskes, J., Chen, L., Shi, X., and Chen, D.: Provenances,
distribution, and accumulation of organic matter in the southern Mariana
Trench rim and slope: Implication for carbon cycle and burial in hadal
trenches, Mar. Geol., 386, 486–498,
https://doi.org/10.1016/j.margeo.2017.02.012, 2017.
Martin, C., Ménot, G., Thouveny, N., Davtian, N., Andrieu-Ponel, V.,
Reille, M., and Bard, E.: Impact of human activities and vegetation changes
on the tetraether sources in Lake St Front (Massif Central, France), Org.
Geochem., 135, 38–52, https://doi.org/10.1016/j.orggeochem.2019.06.005,
2019.
Meyers, P. A.: Preservation of elemental and isotopic source identification
of sedimentary organic matter, Chem. Geol., 144, 289–302,
https://doi.org/10.1016/0009-2541(94)90059-0, 1994.
Naafs, B. D. A., Inglis, G. N., Zheng, Y., Amesbury, M. J., Biester, H.,
Bindler, R., Blewett, J., Burrows, M. A., Torres, D. D. C., and Chambers, F. M.:
Introducing global peat-specific temperature and pH calibrations based on
brGDGT bacterial lipids, Geochim. Cosmochim. Ac., 208, 285–301,
https://doi.org/10.1016/j.gca.2017.01.038, 2017.
O'Leary, M. H.: Carbon isotopes in photosynthesis, Bioscience, 38, 328–336,
https://doi.org/10.2307/1310735, 1988.
Peterse, F., Kim, J.-H., Schouten, S., Kristensen, D. K., Koç, N., and
Sinninghe Damsté, J. S.: Constraints on the application of the MBT/CBT
palaeothermometer at high latitude environments (Svalbard, Norway), Org.
Geochem., 40, 692–699, https://doi.org/10.1016/j.orggeochem.2009.03.004,
2009.
Peterse, F., van der Meer, J., Schouten, S., Weijers, J. W. H., Fierer, N.,
Jackson, R. B., Kim, J. H., and Sinninghe Damsté, J. S.: Revised calibration
of the MBT–CBT paleotemperature proxy based on branched tetraether membrane
lipids in surface soils, Geochim. Cosmochim. Ac., 96, 215–229,
https://doi.org/10.1016/j.gca.2012.08.011, 2012.
Qin, W., Carlson, L. T., Armbrust, E. V., Devol, A. H., Moffett, J. W., Stahl,
D. A., and Ingalls, A. E.: Confounding effects of oxygen and temperature on the
TEX86 signature of marine Thaumarchaeota, P. Natl. Acad. Sci.
USA, 112, 10979–10984, https://doi.org/10.1073/pnas.1501568112, 2015.
Russell, J. M., Hopmans, E. C., Loomis, S. E., Liang, J., and Sinninghe
Damsté, J. S.: Distributions of 5- and 6-methyl branched glycerol dialkyl
glycerol tetraethers (brGDGTs) in East African lake sediment: Effects of
temperature, pH, and new lacustrine paleotemperature calibrations, Org.
Geochem., 117, 56–69, https://doi.org/10.1016/j.orggeochem.2017.12.003,
2018.
Schouten, S., Hopmans, E. C., Baas, M., Boumann, H., Standfest, S.,
Könneke, M., Stahl, D. A., and Sinninghe Damsté, J. S.: Intact Membrane
Lipids of “Candidatus Nitrosopumilus maritimus,” a Cultivated
Representative of the Cosmopolitan Mesophilic Group I Crenarchaeota, Appl.
Environ. Microb., 74, 2433–2440, https://doi.org/10.1128/AEM.01709-07,
2008.
Schouten, S., Hopmans, E. C., and Sinninghe Damsté, J. S.: The organic
geochemistry of glycerol dialkyl glycerol tetraether lipids: A review, Org.
Geochem., 54, 19–61, https://doi.org/10.1016/j.orggeochem.2012.09.006,
2013.
Sinninghe Damsté, J. S.: Spatial heterogeneity of sources of branched
tetraethers in shelf systems: The geochemistry of tetraethers in the Berau
River delta (Kalimantan, Indonesia), Geochim. Cosmochim. Ac., 186, 13–31,
https://doi.org/10.1016/j.gca.2016.04.033, 2016.
Sinninghe Damsté, J. S., Hopmans, E. C., Pancost, R. D., Schouten, S., and
Geenevasen, J. A. J.: Newly discovered non-isoprenoid dialkyl diglycerol
tetraether lipids in sediments, Chem. Commun., 23, 1683–1684,
https://doi.org/10.1039/B004517I, 2000.
Sinninghe Damsté, J. S., Stefan, S., Hopmans, E. C., Duin, A. C. T., Van and
Geenevasen, J. A. J.: Crenarchaeol: the characteristic core glycerol
dibiphytanyl glycerol tetraether membrane lipid of cosmopolitan pelagic
crenarchaeota, J. Lipid Res., 43, 1641–1651,
https://doi.org/10.1194/jlr.M200148-JLR200, 2002.
Sinninghe Damsté, J. S., Ossebaar, J., Schouten, S., and Verschuren, D.:
Altitudinal shifts in the branched tetraether lipid distribution in soil
from Mt. Kilimanjaro (Tanzania): Implications for the MBT/CBT continental
palaeothermometer, Org. Geochem., 39, 1072–1076,
https://doi.org/10.1016/j.orggeochem.2007.11.011, 2008.
Sinninghe Damsté, J. S., Ossebaar, J., Abbas, B., Schouten, S., and
Verschuren, D.: Fluxes and distribution of tetraether lipids in an
equatorial African lake: Constraints on the application of the TEX86
palaeothermometer and BIT index in lacustrine settings, Geochim. Cosmochim.
Ac., 73, 4232–4249, https://doi.org/10.1016/j.gca.2009.04.022, 2009.
Sinninghe Damsté, J. S., Rijpstra, W. I., Hopmans, E. C., Weijers, J. W.,
Foesel, B. U., Overmann, J., and Dedysh, S. N.: 13,16-Dimethyl octacosanedioic
acid (iso-diabolic acid), a common membrane-spanning lipid of Acidobacteria
subdivisions 1 and 3, Appl. Environ. Microb., 77, 4147–4154,
https://doi.org/10.1128/aem.00466-11, 2011.
Soelen, E. E. V., Kim, J. H., Santos, R. V., Dantas, E. L., Almeida, F. V. D.,
Pires, J. P., Roddaz, M., and Sinninghe Damsté, J. S.: A 30 Ma history of
the Amazon River inferred from terrigenous sediments and organic matter on
the Ceará Rise, Earth Planet. Sc. Lett., 474, 40–48,
https://doi.org/10.1016/j.epsl.2017.06.025, 2017.
Ta, K., Peng, X., Xu, H., Du, M., Chen, S., Li, J., and Zhang, C.:
Distributions and Sources of Glycerol Dialkyl Glycerol Tetraethers in
Sediment Cores From the Mariana Subduction Zone, J. Geophys. Res.-Biogeo.,
124, 857–869, https://doi.org/10.1029/2018jg004748, 2019.
Tierney, J. E. and Russell, J. M.: Distributions of branched GDGTs in a
tropical lake system: Implications for lacustrine application of the MBT/CBT
paleoproxy, Org. Geochem., 40, 1032–1036,
https://doi.org/10.1016/j.orggeochem.2009.04.014, 2009.
Wang, H., Liu, W., and Lu, H.: Appraisal of branched glycerol dialkyl
glycerol tetraether-based indices for North China, Org. Geochem., 98,
118–130, https://doi.org/10.1016/j.orggeochem.2016.05.013, 2016.
Wang, M., Zong, Y., Zheng, Z., Man, M., Hu, J., and Tian, L.: Utility of brGDGTs as temperature and precipitation proxies in subtropical China, Sci. Rep., 8, 194, https://doi.org/10.1038/s41598-017-17964-0, 2018.
Wang, M., Zheng, Z., Zong, Y., Man, M., and Tian, L.: Distributions of soil
branched glycerol dialkyl glycerol tetraethers from different climate
regions of China, Sci. Rep.-UK, 9, 2761, https://doi.org/10.1038/s41598-019-39147-9,
2019.
Warden, L., Kim, J.-H., Zell, C., Vis, G.-J., de Stigter, H., Bonnin, J., and Sinninghe Damsté, J. S.: Examining the provenance of branched GDGTs in the Tagus River drainage basin and its outflow into the Atlantic Ocean over the Holocene to determine their usefulness for paleoclimate applications, Biogeosciences, 13, 5719–5738, https://doi.org/10.5194/bg-13-5719-2016, 2016.
Weber, Y., Jonge, C. D., Rijpstra, W. I. C., Hopmans, E. C., Stadnitskaia, A.,
Schubert, C. J., Lehmann, M. F., Sinninghe Damsté, J. S., and Niemann, H.:
Identification and carbon isotope composition of a novel branched GDGT
isomer in lake sediments: Evidence for lacustrine branched GDGT production,
Geochim. Cosmochim. Ac., 154, 118–129,
https://doi.org/10.1016/j.gca.2015.01.032, 2015.
Weber, Y., Sinninghe Damsté, J. S., Zopfi, J., De Jonge, C., Gilli, A.,
Schubert, C. J., Lepori, F., Lehmann, M. F., and Niemann, H.: Redox-dependent
niche differentiation provides evidence for multiple bacterial sources of
glycerol tetraether lipids in lakes, P. Natl. Acad. Sci. USA, 115,
10926–10931, https://doi.org/10.1073/pnas.1805186115, 2018.
Weijers, J. W. H., Schefuß, E., Schouten, S., and Sinninghe Damsté,
J. S.: Coupled thermal and hydrological evolution of tropical Africa over the
last deglaciation, Science, 315, 1701–1704,
https://doi.org/10.1126/science.1138131, 2007a.
Weijers, J. W. H., Schouten, S., Donker, J. C. V. D., Hopmans, E. C., and Sinninghe
Damsté, J. S.: Environmental controls on bacterial tetraether membrane
lipid distribution in soils, Geochim. Cosmochim. Ac., 71, 703–713,
https://doi.org/10.1016/j.gca.2006.10.003, 2007b.
Weijers, J. W. H., Schefuß, E., Kim, J.-H., Sinninghe Damsté, J. S., and
Schouten, S.: Constraints on the sources of branched tetraether membrane
lipids in distal marine sediments, Org. Geochem., 72, 14–22,
https://doi.org/10.1016/j.orggeochem.2014.04.011, 2014.
Wu, W., Zhao, L., Pei, Y., Ding, W., Yang, H., and Xu, Y.: Variability of
tetraether lipids in Yellow River-dominated continental margin during the
past eight decades: Implications for organic matter sources and river
channel shifts, Org. Geochem., 60, 33–39,
https://doi.org/10.1016/j.orggeochem.2013.04.014, 2013.
Xiao, W., Xu, Y., Ding, S., Wang, Y., Zhang, X., Yang, H., Wang, G., and Hou,
J.: Global calibration of a novel, branched GDGT-based soil pH proxy, Org.
Geochem., 89–90, 56–60,
https://doi.org/10.1016/j.orggeochem.2015.10.005, 2015.
Xiao, W., Wang, Y., Zhou, S., Hu, L., Yang, H., and Xu, Y.: Ubiquitous production of branched glycerol dialkyl glycerol tetraethers (brGDGTs) in global marine environments: a new source indicator for brGDGTs, Biogeosciences, 13, 5883–5894, https://doi.org/10.5194/bg-13-5883-2016, 2016.
Xiao, W., Wang, Y., Liu, Y., Zhang, X., Shi, L., and Xu, Y.: Raw data about brGDGTs in Mariana Trench and global environmental settings, Figshare, https://doi.org/10.6084/m9.figshare.9896120.v1, 2019.
Xie, S., Liu, X. L., Schubotz, F., Wakeham, S. G., and Hinrichs, K. U.:
Distribution of glycerol ether lipids in the oxygen minimum zone of the
Eastern Tropical North Pacific Ocean, Org. Geochem., 71, 60–71,
https://doi.org/10.1016/j.orggeochem.2014.04.006, 2014.
Xu, Y., Ge, H., and Fang, J.: Biogeochemistry of hadal trenches: Recent
developments and future perspectives, Deep-Sea Res. Pt. II, 155, 19–26, https://doi.org/10.1016/j.dsr2.2018.10.006, 2018.
Yang, H., Pancost, R. D., Dang, X., Zhou, X., Evershed, R. P., Xiao, G., Tang,
C., Gao, L., Guo, Z., and Xie, S.: Correlations between microbial tetraether
lipids and environmental variables in Chinese soils: Optimizing the
paleo-reconstructions in semi-arid and arid regions, Geochim. Cosmochim.
Ac., 126, 49–69, https://doi.org/10.1016/j.gca.2013.10.041, 2014.
Yang, H., Lü, X., Ding, W., Lei, Y., Dang, X., and Xie, S.: The 6-methyl
branched tetraethers significantly affect the performance of the methylation
index (MBT') in soils from an altitudinal transect at Mount Shennongjia,
Org. Geochem., 82, 42–53, https://doi.org/10.1016/j.orggeochem.2015.02.003,
2015.
Zang, J., Lei, Y., and Yang, H.: Distribution of glycerol ethers in Turpan
soils: implications for use of GDGT-based proxies in hot and dry regions,
Front. Earth Sci., 12, 862–876, https://doi.org/10.1007/s11707-018-0722-z, 2018.
Zell, C., Kim, J.-H., Moreira-Turcq, P., Abril, G., Hopmans, E. C., Bonnet,
M.-P., Sobrinho, R. L., and Sinninghe Damsté, J. S.: Disentangling the
origins of branched tetraether lipids and crenarchaeol in the lower Amazon
River: Implications for GDGT-based proxies, Limnol. Oceanogr., 58, 343–353,
https://doi.org/10.4319/lo.2013.58.1.0343, 2013.
Zell, C., Kim, J.-H., Balsinha, M., Dorhout, D., Fernandes, C., Baas, M., and Sinninghe Damsté, J. S.: Transport of branched tetraether lipids from the Tagus River basin to the coastal ocean of the Portuguese margin: consequences for the interpretation of the MBT′/CBT paleothermometer, Biogeosciences, 11, 5637–5655, https://doi.org/10.5194/bg-11-5637-2014, 2014a.
Zell, C., Kim, J. H., Hollander, D., Lorenzoni, L., Baker, P., Silva, C. G.,
Nittrouer, C., and Sinninghe Damsté, J. S.: Sources and distributions of
branched and isoprenoid tetraether lipids on the Amazon shelf and fan:
Implications for the use of GDGT-based proxies in marine sediments, Geochim.
Cosmochim. Ac., 139, 293–312, https://doi.org/10.1016/j.gca.2014.04.038,
2014b.
Zeng, Z., Liu, X.-L., Farley, K. R., Wei, J. H., Metcalf, W. W., Summons, R. E.,
and Welander, P. V.: GDGT cyclization proteins identify the dominant archaeal
sources of tetraether lipids in the ocean, P. Natl. Acad. Sci. USA,
116, 22505, https://doi.org/10.1073/pnas.1909306116, 2019.
Zhang, C., Wang, J., Wei, Y., Zhu, C., Huang, L., and Dong, H.: Production of
branched tetraether lipids in the lower Pearl River and estuary: effects of
extraction methods and impact on bGDGT proxies, Front. Microbiol., 2, 274,
https://doi.org/10.3389/fmicb.2011.00274, 2012.
Zhu, C., Weijers, J. W. H., Wagner, T., Pan, J. M., Chen, J. F., and Pancost,
R. D.: Sources and distributions of tetraether lipids in surface sediments
across a large river-dominated continental margin, Org. Geochem., 42,
376–386, https://doi.org/10.1016/j.orggeochem.2011.02.002, 2011.
Short summary
The hadal zone (6–11 km depth) is the least explored habitat on Earth. We studied microbial branched glycerol dialkyl glycerol tetraethers (brGDGTs) in the Challenger Deep, Mariana Trench. One unique feature is the strong predominance of 6-methyl brGDGT, which likely reflects an adaption of brGDGT-producing bacteria to alkaline seawater and low temperature. BrGDGTs, with elemental and isotopic data, suggest an autochthonous product for brGDGT. A new approach is proposed for brGDGT sourcing.
The hadal zone (6–11 km depth) is the least explored habitat on Earth. We studied microbial...
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