Bacteriohopanepolyols signature in sediments of the East China Sea and its indications for hypoxia and organic matter sources

doi:10.1016/j.orggeochem.2021.104268

	Bacteriohopanepolyols signature in sediments of the East China Sea and its indications for hypoxia and organic matter sources
	Yin, Meiling 1,2,3,4; Duan, Liqin 1,2,3,4; Song, Jinming1,2,3,4 ; Zhang, Naixing 5; Li, Xuegang 1,2,3,4; Yuan, Huamao 1,2,3,4; Peng, Quancai1,6
	2021-08-01
发表期刊	ORGANIC GEOCHEMISTRY
ISSN	0146-6380
卷号	158 页码:14
通讯作者	Duan, Liqin(duanliqin@qdio.ac.cn)
摘要	The bacterial biomarker group of bacteriohopanepolyols (BHPs) has shown a significant potential to track terrestrial inputs and to respond to environmental changes. A total of 12 BHPs were detected in surface sediments of the East China Sea (ECS), with the contents of 3.79-361 mu g/g TOC. The spatial distribution patterns and correlation analyses of bacteriohopanetetrol (BHT) and soil marker BHPs in sediments of the ECS indicate that they were mainly derived from marine autochthonous and terrestrial sources, respectively. The R-soil index presented an "offshore decrease" trend, with the contribution of terrestrial organic matter (OM) decreasing from 63% in the coastal waters to 0.81% in the outer seas. This suggests that sedimentary OM in the coastal waters is mainly from terrestrial sources while that in the outer seas is dominantly from marine sources. The spatial distribution patterns and correlation analyses suggest mainly marine sources for the BHT-isomer in the ECS. Thus, although the co-eluted BHT-x and BHT-34R cannot be distinguished, the BHT-isomer in the ECS may be mainly BHT-x derived from marine bacteria rather than BHT-34R derived from terrestrial bacteria. Zones with high value of BHT-isomer ratios in sediments were consistent with the seasonal hypoxic zones in the ECS; furthermore, these ratios were negatively correlated with dissolved oxygen concentrations in the bottom waters. These results indicate that hypoxic environments are beneficial to BHT-isomer production, further confirming that the BHT-isomer can be a biomarker for marine hypoxia. Aminotetrol and aminopentol were closely related to the aerobic methane-oxidation gene pmoA and dissolved CH4, suggesting their potential as markers for aerobic methane oxidation. (C) 2021 Elsevier Ltd. All rights reserved.
关键词	Bacteriohopanepolyols (BHPs) Organic matter sources Hypoxia Aerobic methane oxidation The East China Sea
DOI	10.1016/j.orggeochem.2021.104268
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41976037] ; National Natural Science Foundation of China[41676068] ; Shandong Provincial Natural Science Foundation[ZR2020YQ28] ; Key Science and Technology Innovation Program - Shandong Province ; Qingdao National Laboratory for Marine Science and Technology[2018SDKJ0504-1] ; Yantai Double Hundred Plan funding project
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000675468400001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/175765
专题	海洋生态与环境科学重点实验室
通讯作者	Duan, Liqin
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 5.North China Sea Marine Forecasting Ctr SOA, Qingdao 266033, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, Analyt Ctr Inst Oceanol, Qingdao 266071, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Yin, Meiling,Duan, Liqin,Song, Jinming,et al. Bacteriohopanepolyols signature in sediments of the East China Sea and its indications for hypoxia and organic matter sources[J]. ORGANIC GEOCHEMISTRY,2021,158:14.
APA	Yin, Meiling.,Duan, Liqin.,Song, Jinming.,Zhang, Naixing.,Li, Xuegang.,...&Peng, Quancai.(2021).Bacteriohopanepolyols signature in sediments of the East China Sea and its indications for hypoxia and organic matter sources.ORGANIC GEOCHEMISTRY,158,14.
MLA	Yin, Meiling,et al."Bacteriohopanepolyols signature in sediments of the East China Sea and its indications for hypoxia and organic matter sources".ORGANIC GEOCHEMISTRY 158(2021):14.

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