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Observations on a magnetotactic bacteria-grazing ciliate in sediment from the intertidal zone of Huiquan Bay, China

文献类型：期刊论文

作者Chen, Si2,3,4,6; Cui, Kaixuan2,3,4,6; Zhang, Wenyan1,2,4,6; Zhao, Yicong2,3,4,6; Xiao, Tian1,2,4,6; Pan, Hongmiao1,2,4,6; Zhang, Wuchang2,4,6; Wu, Long-Fei1,5
刊名JOURNAL OF OCEANOLOGY AND LIMNOLOGY
出版日期2021-11-01
卷号39期号:6页码:2053-2062
关键词magnetically responsive protist ciliate magnetotactic bacteria magnetosome graze magnetoreception
ISSN号2096-5508
DOI10.1007/s00343-021-1011-3
通讯作者Pan, Hongmiao(panhongmiao@qdio.ac.cn) ; Zhang, Wuchang(wuchangzhang@qdio.ac.cn)
英文摘要Magnetotactic bacteria(MTB) are a group of prokaryotes having the ability to orient and swim along geomagnetic fi eld lines because they contain intracellular magnetosomes that are synthesized through a biomineralization process. Magnetosomes have recently also been found in unicellular eukaryotes, which are referred to as magnetically responsive protists(MRPs). The magnetosomes have three origins in MRPs. In this study, we characterized a MTB-grazing ciliated MRP that was magnetically collected from intertidal sediment of Huiquan Bay, Qingdao, China. Based on 18S rRNA gene sequence analysis, the ciliated MRP was tentatively identifi ed as Uronemella parafi lificum HQ. Using transmission electron microscopy, we observed that magnetosomes having 2-3 shapes were randomly distributed within this ciliate. Energydispersive X-ray spectroscopy and high-resolution transmission electron microscopy images of the magnetosomes were consistent with them being composed of magnetite. Magnetosomes having the same shape and mineral composition were also detected in MTB that occurred in the same environment as the ciliated MRP. Statistical analysis showed that the size and shape of the magnetosomes in the ciliated MRP were similar to those in MTB. The results suggest that this ciliated MRP can graze, ingest, and digest various types of MTB. It is certainly worth noting that this is the fi rst record of MRPs in Asian aquatic sediment and suggesting they might be widely distributed. These results also support the assertion that MRPs probably contribute to the ecological cycles of iron, and expand possibilities for research into the mechanism of magnetoreception in eukaryotes.
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 for Marine Science Research Centers[U1706208]
WOS研究方向Marine & Freshwater Biology ; Oceanography
语种英语
WOS记录号WOS:000734164300006
出版者SCIENCE PRESS
源URL[http://ir.qdio.ac.cn/handle/337002/177584]  
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; Zhang, Wuchang
作者单位1.CNRS CAS, Int Associated Lab Evolut & Dev Magnetotact Multi, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China
5.Aix Marseille Univ, CNRS, IM2B, LCB,IMM, F-13009 Marseille, France
6.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Si,Cui, Kaixuan,Zhang, Wenyan,et al. Observations on a magnetotactic bacteria-grazing ciliate in sediment from the intertidal zone of Huiquan Bay, China[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2021,39(6):2053-2062.
APA Chen, Si.,Cui, Kaixuan.,Zhang, Wenyan.,Zhao, Yicong.,Xiao, Tian.,...&Wu, Long-Fei.(2021).Observations on a magnetotactic bacteria-grazing ciliate in sediment from the intertidal zone of Huiquan Bay, China.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,39(6),2053-2062.
MLA Chen, Si,et al."Observations on a magnetotactic bacteria-grazing ciliate in sediment from the intertidal zone of Huiquan Bay, China".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 39.6(2021):2053-2062.

入库方式： OAI收割

来源：海洋研究所

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