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Characterization of uncultivated magnetotactic bacteria from the sediments of Yuehu Lake, China
Du Haijian1,2; Zhang Rui1,2; Zhang Wenyan1,2; Xu Cong1,2,5; Chen Yiran1,2; Pan Hongmiao1,2; Zhou Ke3; Wu Long-fei4; Xiao Tian1,2
2017-02-01
Source PublicationACTA OCEANOLOGICA SINICA
Volume36Issue:2Pages:94-104
SubtypeArticle
AbstractMarine magnetotactic bacteria were collected from the intertidal sediments of Yuehu Lake (China), where their abundance reached 10(3)-10(4) ind./cm(3). Diverse morphotypes of magnetotactic bacteria were observed, including cocci and oval, vibrio-, spirillum-, rod-, elliptical-, handle- and bar-shaped forms. The magnetococci were the most abundant, and had flagella arranged in parallel within a bundle. The majority of magnetosomes were arranged in one, two or multiple chains, although irregular arrangements were also evident. All the results of high-resolution transmission electron microscopy (HRTEM) analysis show that magnetosome crystals were composed of Fe3O4, and their morphology was specific to particular cell morphotypes. By the 16S rRNA gene sequence analysis, we found fourteen operational taxonomic units (OTUs) which were related to magnetotactic bacteria. Among these, thirteen belonged to the Alphaproteobacteria and one to the Gammaproteobacteria. Compared with known axenic and uncultured marine magnetotactic bacteria, the 16S rRNA gene sequences of most magnetotactic bacteria collected from the Yuehu Lake exhibited sequence identities ranging from 90.1% to 96.2% (< 97%). The results indicate that microbial communities containing previously unidentified magnetotactic bacteria occur in the Yuehu Lake.
KeywordMagnetotactic Bacteria Magnetosome Biodiversity Yuehu Lake Intertidal Sediments
DOI10.1007/s13131-017-0980-8
Indexed BySCI
Language英语
WOS IDWOS:000393672200012
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/136386
Collection海洋生态与环境科学重点实验室
实验海洋生物学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
3.Qingdao Agr Univ, Coll Resources & Environm, Qingdao 266109, Peoples R China
4.Aix Marseille Univ, CNRS, Inst Microbiol Mediterranee, LCB UMR 7257, F-13402 Marseille, France
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Du Haijian,Zhang Rui,Zhang Wenyan,et al. Characterization of uncultivated magnetotactic bacteria from the sediments of Yuehu Lake, China[J]. ACTA OCEANOLOGICA SINICA,2017,36(2):94-104.
APA Du Haijian.,Zhang Rui.,Zhang Wenyan.,Xu Cong.,Chen Yiran.,...&Xiao Tian.(2017).Characterization of uncultivated magnetotactic bacteria from the sediments of Yuehu Lake, China.ACTA OCEANOLOGICA SINICA,36(2),94-104.
MLA Du Haijian,et al."Characterization of uncultivated magnetotactic bacteria from the sediments of Yuehu Lake, China".ACTA OCEANOLOGICA SINICA 36.2(2017):94-104.
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