Institutional Repository of Key Laboratory of Marine Ecology & Environmental Sciences, CAS
| A novel genus of multicellular magnetotactic prokaryotes from the Yellow Sea | |
Zhou, Ke1; Zhang, Wen-Yan1; Kui Yu-Zhang2; Pan, Hong-Miao1; Zhang, Sheng-Da3; Zhang, Wei-Jia4,5; Yue, Hai-Dong1; Li, Ying4,5 ; Xiao, Tian1,6; Wu, Long-Fei3,6; Xiao, T (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China.
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| 2012-02-01 | |
| 发表期刊 | ENVIRONMENTAL MICROBIOLOGY
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| ISSN | 1462-2912 |
| 卷号 | 14期号:2页码:405-413 |
| 文章类型 | Article |
| 摘要 | Multicellular magnetotactic prokaryotes (MMPs) are a group of magnetotactic microorganisms composed of 10-40 Gram-negative cells. Currently, all the identified MMPs show a spherical morphology and synthesize mainly iron sulfide magnetosomes. In this study, we report a novel genus of MMPs with peculiar ellipsoidal morphology and iron oxide magnetosomes, which were discovered in intertidal sediment of the Yellow Sea in China. Optical and fluorescence microscopy revealed that this organism was similar to 10 x 8 mu m in size and composed of similar to 40 cells enveloped by an outer layer. Scanning electron microscopy showed that the cells were arranged in 4-6 interlaced circles. Bullet-shaped magnetite magnetosomes were organized in chains roughly parallel to the long axis of the ellipsoidal MMPs when analysed by transmission electron microscopy. These MMPs displayed special escape motility, i.e. swimming rapidly from the edge to the centre of the droplet and then slowly back to the edge. In addition, they exhibited negative phototaxis. Light microscopy observations showed that the ellipsoidal MMPs reproduced by division along the body long axis. Both analysis of 16S rRNA gene sequence and fluorescence in situ hybridization revealed the ellipsoidal MMPs as a new genus of the Deltaproteobacteria. In summary, this novel genus of MMPs exhibit unique morphology, peculiar division process and distinct phylogenetic affiliation compared with the other MMPs. |
| 关键词 | Greigite Fe3s4 Bacteria Ultrastructure Minerals Biomineralization Microorganism Sediments Crystals Behavior |
| 学科领域 | Microbiology |
| DOI | 10.1111/j.1462-2920.2011.02590.x |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000302539300009 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/12410 |
| 专题 | 海洋生态与环境科学重点实验室 海洋环流与波动重点实验室 |
| 通讯作者 | Xiao, T (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Univ Reims, Lab Microscopies & Etud Nanostruct LMEN, F-51687 Reims, France 3.Univ Aix Marseille 2, CNRS, Lab Chim Bacterienne, F-13402 Marseille 20, France 4.China Agr Univ, State Key Labs Agrobiotechnol, Beijing 100093, Peoples R China 5.China Agr Univ, Coll Biol Sci, Beijing 100093, Peoples R China 6.CNRS, Lab Int Assoc Biomineralisat & Nanostruct LIA Bio, F-13402 Marseille 20, France |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Zhou, Ke,Zhang, Wen-Yan,Kui Yu-Zhang,et al. A novel genus of multicellular magnetotactic prokaryotes from the Yellow Sea[J]. ENVIRONMENTAL MICROBIOLOGY,2012,14(2):405-413. |
| APA | Zhou, Ke.,Zhang, Wen-Yan.,Kui Yu-Zhang.,Pan, Hong-Miao.,Zhang, Sheng-Da.,...&Xiao, T .(2012).A novel genus of multicellular magnetotactic prokaryotes from the Yellow Sea.ENVIRONMENTAL MICROBIOLOGY,14(2),405-413. |
| MLA | Zhou, Ke,et al."A novel genus of multicellular magnetotactic prokaryotes from the Yellow Sea".ENVIRONMENTAL MICROBIOLOGY 14.2(2012):405-413. |
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