中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 深海科学与工程研究所
  3. 中国科学院深海科学与工程研究所
  4. 深海科学研究部
  5. 深海地质与地球化学研究室
The Sources of Organic Carbon in the Deepest Ocean: Implication From Bacterial Membrane Lipids in the Mariana Trench Zone

文献类型：期刊论文

作者Li, Jiwei1,2; Chen, Zhiyan1,3,4; Li, Xinxin4,5; Chen, Shun1; Xu, Hengchao1; Ta, Kaiwen1; Dasgupta, Shamik1; Bai, Shijie1; Du, Mengran1; Liu, Shuangquan1
刊名FRONTIERS IN EARTH SCIENCE
出版日期2021-04-13
卷号9页码:12
关键词hadal trenches organic carbon water-rock interaction membrane lipids deep-sea carbon cycles chemoautotrophic activity
DOI10.3389/feart.2021.653742
英文摘要Hadal trenches have higher microbial carbon turnover rates as compared to adjacent abyssal plains. However, the source of organic carbon in the trench remains enigmatic. In this study, we show that a fraction of organic carbon is possibly derived in situ and correlated with chemoautotrophic communities supported by the fluid discharge of water-rock interaction in the trench wall, based on analysis of glycerol dialkyl glycerol tetraether (GDGT) membrane lipids, including archaeal isoprenoid GDGTs (IsoGDGTs) and bacterial branched GDGTs (BrGDGTs), in sediments and rocks of the Mariana and Yap Trenches, northwest Pacific Ocean. These trench sediments contained relative higher BrGDGTs ratios, which was a rare observation in the open ocean. The BrGDGT-to-IsoGDGT ratios ranged in 0.02-0.88 (mean = 0.10 +/- 0.11) in sediments and 0.09-0.38 (mean = 0.17 +/- 0.13) in altered rocks. The calculated values of branched and isoprenoid tetraether (BIT) index ranged from 0.02-0.73 (mean = 0.18 +/- 0.11) in sediments and from 0.16-0.9 in altered rocks (mean = 0.37 +/- 0.27). Moreover, these GDGTs exhibited similar characteristics to those of altered basalt rocks, indicating inputs of organic carbon from the trench subsurface environment. Thus, in addition to organic-rich material settling, we propose chemoautotrophic activity in oceanic crust could be an additional source of organic carbon in the deepest part of the ocean, with an important role in deep-sea carbon cycles.
WOS关键词DIALKYL GLYCEROL TETRAETHERS ; SERPENTINITE-HOSTED ECOSYSTEM ; MICROBIAL CARBON ; HADAL ZONE ; SEDIMENTS ; SEA ; MATTER ; BIODEGRADATION ; DISTRIBUTIONS ; ENVIRONMENTS
资助项目National Key Research and Development Project of China[2017YFC0306604] ; National Key Basic Research Program of China[2015CB755905] ; National Natural Science Foundation of China[41576038] ; National Natural Science Foundation of China[41876050] ; Youth Innovation Promotion Association CAS ; Shenzhen international collaborative research project[GJHZ20180928155004783] ; Shenzhen Key Laboratory of Marine Archaea Geo-Omics, Southern University of Science and Technology[ZDSYS20180208184349083]
WOS研究方向Geology
语种英语
WOS记录号WOS:000644416200001
出版者FRONTIERS MEDIA SA
资助机构National Key Research and Development Project of China ; National Key Basic Research Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Shenzhen international collaborative research project ; Shenzhen Key Laboratory of Marine Archaea Geo-Omics, Southern University of Science and Technology
源URL[http://ir.idsse.ac.cn/handle/183446/8627]  
专题深海科学研究部_深海地质与地球化学研究室
专家咨询委员会
通讯作者Peng, Xiaotong
作者单位1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Beijing, Peoples R China
2.Sun Yat Sen Univ, Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China
3.Harbin Inst Technol, Sch Environm, Harbin, Peoples R China
4.Southern Univ Sci & Technol, Shenzhen Key Lab Marine Archaea Geoom, Dept Ocean Sci & Engn, Shenzhen, Peoples R China
5.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou, Peoples R China
推荐引用方式
GB/T 7714		 Li, Jiwei,Chen, Zhiyan,Li, Xinxin,et al. The Sources of Organic Carbon in the Deepest Ocean: Implication From Bacterial Membrane Lipids in the Mariana Trench Zone[J]. FRONTIERS IN EARTH SCIENCE,2021,9:12.
APA Li, Jiwei.,Chen, Zhiyan.,Li, Xinxin.,Chen, Shun.,Xu, Hengchao.,...&Peng, Xiaotong.(2021).The Sources of Organic Carbon in the Deepest Ocean: Implication From Bacterial Membrane Lipids in the Mariana Trench Zone.FRONTIERS IN EARTH SCIENCE,9,12.
MLA Li, Jiwei,et al."The Sources of Organic Carbon in the Deepest Ocean: Implication From Bacterial Membrane Lipids in the Mariana Trench Zone".FRONTIERS IN EARTH SCIENCE 9(2021):12.

入库方式： OAI收割

来源：深海科学与工程研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。