Articles | Volume 17, issue 2
Research article
31 Jan 2020
Research article |  | 31 Jan 2020

Evidence for preferential protein depolymerization in wetland soils in response to external nitrogen availability provided by a novel FTIR routine

Hendrik Reuter, Julia Gensel, Marcus Elvert, and Dominik Zak

Related authors

Changes of the CO2 and CH4 production potential of rewetted fens in the perspective of temporal vegetation shifts
D. Zak, H. Reuter, J. Augustin, T. Shatwell, M. Barth, J. Gelbrecht, and R. J. McInnes
Biogeosciences, 12, 2455–2468,,, 2015
Short summary

Related subject area

Biogeochemistry: Wetlands
Driving and limiting factors of CH4 and CO2 emissions from coastal brackish-water wetlands in temperate regions
Emilia Chiapponi, Sonia Silvestri, Denis Zannoni, Marco Antonellini, and Beatrice M. S. Giambastiani
Biogeosciences, 21, 73–91,,, 2024
Short summary
Reviews and syntheses: Greenhouse gas emissions from drained organic forest soils – synthesizing data for site-specific emission factors for boreal and cool temperate regions
Jyrki Jauhiainen, Juha Heikkinen, Nicholas Clarke, Hongxing He, Lise Dalsgaard, Kari Minkkinen, Paavo Ojanen, Lars Vesterdal, Jukka Alm, Aldis Butlers, Ingeborg Callesen, Sabine Jordan, Annalea Lohila, Ülo Mander, Hlynur Óskarsson, Bjarni D. Sigurdsson, Gunnhild Søgaard, Kaido Soosaar, Åsa Kasimir, Brynhildur Bjarnadottir, Andis Lazdins, and Raija Laiho
Biogeosciences, 20, 4819–4839,,, 2023
Short summary
Reviews and syntheses: Understanding the impacts of peatland catchment management on dissolved organic matter concentration and treatability
Jennifer Williamson, Chris Evans, Bryan Spears, Amy Pickard, Pippa J. Chapman, Heidrun Feuchtmayr, Fraser Leith, Susan Waldron, and Don Monteith
Biogeosciences, 20, 3751–3766,,, 2023
Short summary
Plant mercury accumulation and litter input to a Northern Sedge-dominated Peatland
Ting Sun and Brian A. Branfireun
Biogeosciences, 20, 2971–2984,,, 2023
Short summary
Warming accelerates belowground litter turnover in salt marshes – insights from a Tea Bag Index study
Hao Tang, Stefanie Nolte, Kai Jensen, Roy Rich, Julian Mittmann-Goetsch, and Peter Mueller
Biogeosciences, 20, 1925–1935,,, 2023
Short summary

Cited articles

Aerts, R.: Climate, leaf litter chemistry and leaf litter decomposition in terrestrial ecosystems: a triangular relationship, Oikos, 79, 439–449, 1997. a
Ågren, G., Hyvönen, R., Berglund, S., and Hobbie, S.: Estimating the critical N: C from litter decomposition data and its relation to soil organic matter stoichiometry, Soil Biol. Biochem., 67, 312–318, 2013. a
Ågren, G. I., Bosatta, E., and Magill, A. H.: Combining theory and experiment to understand effects of inorganic nitrogen on litter decomposition, Oecologia, 128, 94–98, 2001. a
Andresen, L. C., Bode, S., Tietema, A., Boeckx, P., and Rütting, T.: Amino acid and N mineralization dynamics in heathland soil after long-term warming and repetitive drought, SOIL, 1, 341–349,, 2015. a
Berg, B. and McClaugherty, C.: Plant litter, Springer, Berlin, Heidelberg,, 2003. a
Short summary
Using infrared spectroscopy, we developed a routine to disentangle microbial nitrogen (N) and plant N in decomposed litter. In a decomposition experiment in three wetland soils, this routine revealed preferential protein depolymerization as a decomposition-site-dependent parameter, unaffected by variations in initial litter N content. In Sphagnum peat, preferential protein depolymerization led to a N depletion of still-unprocessed litter tissue, i.e., a gradual loss of litter quality.
Final-revised paper