干旱区生态环境知识资源中心(Arid): Biogeographic distributions of microbial communities associated with anaerobic methane oxidation in the surface sediments of deep-sea cold seeps in the South China Sea

Arid

DOI	10.3389/fmicb.2022.1060206
	Biogeographic distributions of microbial communities associated with anaerobic methane oxidation in the surface sediments of deep-sea cold seeps in the South China Sea
	Jiang, Qiuyun; Jing, Hongmei; Liu, Hao; Du, Mengran
通讯作者	Jing, HM
来源期刊	FRONTIERS IN MICROBIOLOGY
EISSN	1664-302X
出版年	2022
卷号	13
英文摘要	Cold seeps are oasis for the microbes in the deep-sea ecosystems, and various cold seeps are located along the northern slope of the South China Sea (SCS). However, by far most microbial ecological studies were limited to specific cold seep in the SCS, and lack of comparison between different regions. Here, the surface sediments (0-4 cm) from the Site F/Haima cold seeps and the Xisha trough in the SCS were used to elucidate the biogeography of microbial communities, with particular interest in the typical functional groups involved in the anaerobic oxidation of methane (AOM) process. Distinct microbial clusters corresponding to the three sampling regions were formed, and significantly higher gene abundance of functional groups were present in the cold seeps than the trough. This biogeographical distribution could be explained by the geochemical characteristics of sediments, such as total nitrogen (TN), total phosphorus (TP), nitrate (NO3-), total sulfur (TS) and carbon to nitrogen ratios (C/N). Phylogenetic analysis demonstrated that mcrA and pmoA genotypes were closely affiliated with those from wetland and mangroves, where denitrifying anaerobic methane oxidation (DAMO) process frequently occurred; and highly diversified dsrB genotypes were revealed as well. In addition, significantly higher relative abundance of NC10 group was found in the Xisha trough, suggesting that nitrite-dependent DAMO (N-DAMO) process was more important in the hydrate-bearing trough, although its potential ecological contribution to AOM deserves further investigation. Our study also further demonstrated the necessity of combining functional genes and 16S rRNA gene to obtain a comprehensive picture of the population shifts of natural microbial communities among different oceanic regions.
英文关键词	cold seeps anaerobic methane oxidation 16S rRNA mcrA pmoA dsrB
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000907830300001
WOS关键词	16S RIBOSOMAL-RNA ; SULFATE-REDUCING BACTERIA ; AUTHIGENIC CARBONATES ; FLUID SOURCES ; DIVERSITY ; ABUNDANCE ; QUANTIFICATION ; AMPLIFICATION ; PRIMERS ; WETLAND
WOS类目	Microbiology
WOS研究方向	Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392789
推荐引用方式 GB/T 7714	Jiang, Qiuyun,Jing, Hongmei,Liu, Hao,et al. Biogeographic distributions of microbial communities associated with anaerobic methane oxidation in the surface sediments of deep-sea cold seeps in the South China Sea[J],2022,13.
APA	Jiang, Qiuyun,Jing, Hongmei,Liu, Hao,&Du, Mengran.(2022).Biogeographic distributions of microbial communities associated with anaerobic methane oxidation in the surface sediments of deep-sea cold seeps in the South China Sea.FRONTIERS IN MICROBIOLOGY,13.
MLA	Jiang, Qiuyun,et al."Biogeographic distributions of microbial communities associated with anaerobic methane oxidation in the surface sediments of deep-sea cold seeps in the South China Sea".FRONTIERS IN MICROBIOLOGY 13(2022).