Differences in the methanogen community between the nearshore and offshore sediments of the South Yellow Sea

Ye Chen; Yu Zhen; Jili Wan; Siqi Li; Jiayin Liu; Guodong Zhang; Tiezhu Mi

doi:10.1007/s12275-022-2022-2

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Differences in the methanogen community between the nearshore and offshore sediments of the South Yellow Sea: Ye Chen ¹, Yu Zhen ^2,3,4, Jili Wan ^5,6,7, Siqi Li ^2,3,8, Jiayin Liu ^5,7,9, Guodong Zhang ^6,7, Tiezhu Mi ^2,3,4,7; Journal of Microbiology 2022;60(8):814-822
DOI: https://doi.org/10.1007/s12275-022-2022-2
Published online: July 14, 2022

¹Key Laboratory of Gas Hydrate, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, P. R. China, ²Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, P. R. China, ³Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao 266100, P. R. China, ⁴College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, P. R. China, ⁵Saline-alkali Tolerant Rice R&D Center, Qingdao 266000, P. R. China, ⁶Qingdao Empyrean Intellectual Agriculture Group Co., Ltd., Qingdao 266109, P. R. China, ⁷National Center of Technology Innovation for Saline-alkali Tolerant Rice, Qingdao 266109, P. R. China, ⁸College of Marine Life Science, Ocean University of China, Qingdao 266003, P. R. China, ⁹Qingdao Yuance Group Co, Ltd., Qingdao 266000, P. R. China¹Key Laboratory of Gas Hydrate, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, P. R. China, ²Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, P. R. China, ³Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao 266100, P. R. China, ⁴College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, P. R. China, ⁵Saline-alkali Tolerant Rice R&D Center, Qingdao 266000, P. R. China, ⁶Qingdao Empyrean Intellectual Agriculture Group Co., Ltd., Qingdao 266109, P. R. China, ⁷National Center of Technology Innovation for Saline-alkali Tolerant Rice, Qingdao 266109, P. R. China, ⁸College of Marine Life Science, Ocean University of China, Qingdao 266003, P. R. China, ⁹Qingdao Yuance Group Co, Ltd., Qingdao 266000, P. R. China

Corresponding author: Tiezhu Mi ,

Received: 18 January 2022 • Revised: 10 May 2022 • Accepted: 11 May 2022

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Abstract

The differences in methanogen abundance and community composition were investigated between nearshore and offshore sediments in the South Yellow Sea (SYS). Shannon, Simpson, and Chao1 indices revealed a higher diversity of methanogens in the nearshore sediments than in the offshore sediments. The Mann–Whitney U test demonstrated that the relative abundance of Methanococcoides was significantly higher in the offshore sediments, while the relative abundances of Methanogenium, Methanosarcina, Methanosaeta, Methanolinea, and Methanomassiliicoccus were significantly higher in the nearshore sediments (P < 0.05). The abundance of the mcrA gene in the nearshore sediments was significantly higher than that in the offshore sediments. Furthermore, a similar vertical distribution of the methanogen and sulfatereducing bacteria (SRB) abundances was observed in the SYS sediments, implying there is potential cooperation between these two functional microbes in this environment. Finally, total organic carbon (TOC) was significantly correlated with methanogen community composition.

Keywords: antimicrobial resistance;bacteria;biofilm;fungi;outer membrane vesicles

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Differences in the methanogen community between the nearshore and offshore sediments of the South Yellow Sea

J. Microbiol. 2022;60(8):814-822. Published online July 14, 2022

DOI: https://doi.org/10.1007/s12275-022-2022-2

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