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Characterization and diversity of magnetotactic bacteria from sediments of Caroline Seamount in the Western Pacific Ocean

文献类型：期刊论文

作者Cui, Kaixuan1,4,5,6; Zhang, Wenyan1,3,4,5; Liu, Jia1,3,4,5; Xu, Cong2,4; Zhao, Yicong1,4,5,6; Chen, Si1,4,5,6; Pan, Hongmiao1,3,4,5; Xiao, Tian1,3,4,5; Wu, Long-Fei3,7
刊名JOURNAL OF OCEANOLOGY AND LIMNOLOGY
出版日期2021-11-01
卷号39期号:6页码:2027-2043
关键词magnetotactic bacteria Caroline Seamount abundance diversity magnetosome
ISSN号2096-5508
DOI10.1007/s00343-021-0029-x
通讯作者Pan, Hongmiao(panhongmiao@qdio.ac.cn) ; Xiao, Tian(txiao@qdio.ac.cn)
英文摘要Magnetotactic bacteria(MTB) are a group of microorganisms capable of orientating and swimming along magnetic fields because they contain intracellular biomineralized magnetosomes composed of magnetite(Fe3O4) or/and greigite(Fe3S4). They are ubiquitous in freshwater, brackish, and marine habitats, and are cosmopolitan in distribution. However, knowledge of their occurrence and distribution in seamount ecosystems is limited. We investigated the diversity and distribution of MTB in the Caroline Seamount(CM4). The abundance of living MTB in 12 stations in depth varying from 90 to 1 545 m was 1.1x10(3) - 43.7x10(3) inds./dm(3). Despite diverse shapes of MTB observed, magnetotactic cocci were the dominant morphotype and could be categorized into two types: 1) typical cocci that appeared to have peritrichous flagella; and 2) those characterized by having a drop-shaped form and one bundle of flagella located at the thin/narrow end of the cell. Transmission electron microscopy(TEM) analysis revealed that the magnetosomes formed by those magnetotactic cocci are magnetite(Fe3O4) with octahedral crystal habit. A total of 41 operational taxonomic units(OTUs) of putative MTB(2 702 reads) were acquired from nine stations, based on high-throughput sequencing. Of these, 40 OTUs belonged to the Proteobacteria phylum and one belonged to the Nitrospirae phylum. We found apparent connectivity between the MTB populations on the Caroline and Kexue(Science in Chinese) seamounts, although the diversity of MTB on Caroline was much richer than on the Kexue Seamount. Our results imply that the unique topography of seamounts and other as-yet unclear environmental factors could lead to evolution of different flagella arrangements in magnetotactic cocci, and the occurrence of octahedral magnetite magnetosomes.
资助项目National Natural Science Foundation of China[41776130] ; National Natural Science Foundation of China[41776131] ; National Natural Science Foundation of China, Shandong Joint Fund[U1706208] ; Youth Talent Support Program of the Laboratory for Marine Ecology and Environmental Science ; Pilot National Laboratory for Marine Science and Technology (Qingdao)[LMEES-YTSP-2018-01-07] ; Science & Technology Basic Resources Investigation Program of China[2017FY100803]
WOS研究方向Marine & Freshwater Biology ; Oceanography
语种英语
WOS记录号WOS:000734164300004
出版者SCIENCE PRESS
源URL[http://ir.qdio.ac.cn/handle/337002/177602]  
专题海洋研究所_海洋生态与环境科学重点实验室
通讯作者Pan, Hongmiao; Xiao, Tian
作者单位1.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
2.Natl Oceanog Ctr, Qingdao 266071, Peoples R China
3.CNRS CAS, Int Associated Lab Evolut & Dev Magnetotact Multi, Qingdao 266071, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
5.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
7.Aix Marseille Univ, IMM, IM2B, LCB,CNRS, F-13009 Marseille, France
推荐引用方式
GB/T 7714		 Cui, Kaixuan,Zhang, Wenyan,Liu, Jia,et al. Characterization and diversity of magnetotactic bacteria from sediments of Caroline Seamount in the Western Pacific Ocean[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2021,39(6):2027-2043.
APA Cui, Kaixuan.,Zhang, Wenyan.,Liu, Jia.,Xu, Cong.,Zhao, Yicong.,...&Wu, Long-Fei.(2021).Characterization and diversity of magnetotactic bacteria from sediments of Caroline Seamount in the Western Pacific Ocean.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,39(6),2027-2043.
MLA Cui, Kaixuan,et al."Characterization and diversity of magnetotactic bacteria from sediments of Caroline Seamount in the Western Pacific Ocean".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 39.6(2021):2027-2043.

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来源：海洋研究所

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