Biogeosciences
Biogeosciences
BG
Articles | Volume 17, issue 7
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.
https://doi.org/10.5194/bg-17-2135-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 7
Research article
 | 
17 Apr 2020
Research article |  | 17 Apr 2020

Predominance of hexamethylated 6-methyl branched glycerol dialkyl glycerol tetraethers in the Mariana Trench: source and environmental implication

Wenjie Xiao, Yasong Wang, Yongsheng Liu, Xi Zhang, Linlin Shi, and Yunping Xu

Viewed

Total article views: 3,090 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
2,208 803 79 3,090 224 84 111
  • HTML: 2,208
  • PDF: 803
  • XML: 79
  • Total: 3,090
  • Supplement: 224
  • BibTeX: 84
  • EndNote: 111
Views and downloads (calculated since 11 Oct 2019)
Cumulative views and downloads (calculated since 11 Oct 2019)

Viewed (geographical distribution)

Total article views: 3,090 (including HTML, PDF, and XML) Thereof 2,844 with geography defined and 246 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 08 Nov 2025
Download
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.
Read more
Share
Altmetrics
Final-revised paper
Preprint