Microbial Diversity of Deep-sea Sediments from Three Newly Discovered Hydrothermal Vent Fields in the Central Indian Ridge SCIE SCOPUS KCI

Cited 1 time in WEB OF SCIENCE Cited 1 time in Scopus
Title
Microbial Diversity of Deep-sea Sediments from Three Newly Discovered Hydrothermal Vent Fields in the Central Indian Ridge
Alternative Title
Microbial Diversity of Deep-sea Sediments from Three Newly Discovered Hydrothermal Vent Fields in the Central Indian Ridge
Author(s)
Namirimu, Teddy; Park, Mi-Jeong; Kim, Yun Jae; Lim, Dhong Il; Lee, Jung Hyun; Shin, A Young; Kim, Dong Sung; Kwon, Kae Kyoung
KIOST Author(s)
Namirimu, Teddy(Namirimu, Teddy)Park, Mi-Jeong(박미정)Kim, Yun Jae(김윤재)Lim, Dhong Il(임동일)Lee, Jung Hyun(이정현)Shin, A Young(신아영)Kim, Dong Sung(김동성)Kwon, Kae Kyoung(권개경)
Alternative Author(s)
Namirimu; 박미정; 김윤재; 임동일; 이정현; 신아영; 김동성; 권개경
Publication Year
2023-06
Abstract
Since the discovery of hydrothermal vents in the late 1970s, deep-sea hydrothermal vent fields have attracted great attention as biological hotspots. However, compared with other ocean ridges, the structure and function of microbial communities inhabiting vent fields in the Central Indian ridge (CIR) remain understudied. Here, we provide for the first time 16S rRNA gene-based comparative metagenomic analysis of the sediment-associated microbial communities from three newly discovered vent fields in the CIR. Sediment samples collected in the Invent B, Invent E and Onnuri vent fields varied in geochemical properties, elemental concentrations and associated microbial communities. Proteobacteria (Gammaproteobacteria) was the dominant phylum in Invent B and Onnuri vent fields. In contrast, Invent E mainly consisted of Chloroflexi and Euryarchaeota. Predicted functional profiling revealed that the microbial communities in the three vents are dominated by chemoheterotrophic functions. In addition, microbial communities capable of respiration of sulfur compounds, nitrification, nitrite oxidation, methylotrophy, and methanotropy were found to be the main chemolithoautotrophs. Compared to other vent fields, Invent E showed a predominance of archaeal methanogens suggesting it exhibits slightly different geochemistry. Multivariate analysis indicated that the biogeochemical and trace metal differences are reflected in the sediment microbial compositions of the three vent fields. This study expands our current understanding of the microbial community structure and potential ecological functions of the newly discovered hydrothermal vent fields in the CIR.
ISSN
1738-5261
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/43992
DOI
10.1007/s12601-023-00106-1
Bibliographic Citation
Ocean Science Journal, v.58, no.2, pp.11 - 11, 2023
Publisher
한국해양과학기술원
Keywords
Amplicon sequencing; Central Indian Ridge; Deep-sea sediments; Hydrothermal vent field; Microbial diversity
Type
Article
Language
English
Document Type
Article
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