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| Occurrence and microscopic analyses of multicellular magnetotactic prokaryotes from coastal sediments in the Yellow Sea | |
| Zhou Ke1,2,3; Pan Hongmiao1; Zhang Shengda4; Yue Haidong1; Xiao Tian1,5; Wu Longfei5,6 | |
| 2011-03-01 | |
| 发表期刊 | CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
 |
| ISSN | 0254-4059 |
| 卷号 | 29期号:2页码:246-251 |
| 文章类型 | Article |
| 摘要 | Multicellular magnetotactic prokaryotes (MMPs) are a group of aggregates composed of 7-45 gram-negative cells synthesizing intracellular magnetic crystals. Although they are thought to be globally distributed, MMPs have been observed only in marine environments in America and Europe. Most MMPs share a rosette-like morphology and biomineralize iron sulfide crystals. In the present study, abundant MMPs were observed, with a density of 26 ind./cm(3), in the sediments of a coastal lagoon, Lake Yuehu, in the Yellow Sea. Optical microscopy showed that all of them were rosette shaped with a diameter of 5.5+/-0.8 mu m. Transmission electron microscopy revealed that these MMPs were composed of 10-16 ovoid cells and flagellated peritrichously. High-resolution transmission electron microscopy and energy dispersive X-ray analysis indicated that they biomineralized bullet-shaped magnetite crystals in highly organized parallel chains within which the magnetosomes were oriented in the same direction. This is the first report of MMPs from Asia and demonstrates the ubiquitous distribution of MMPs.; Multicellular magnetotactic prokaryotes (MMPs) are a group of aggregates composed of 7-45 gram-negative cells synthesizing intracellular magnetic crystals. Although they are thought to be globally distributed, MMPs have been observed only in marine environments in America and Europe. Most MMPs share a rosette-like morphology and biomineralize iron sulfide crystals. In the present study, abundant MMPs were observed, with a density of 26 ind./cm(3), in the sediments of a coastal lagoon, Lake Yuehu, in the Yellow Sea. Optical microscopy showed that all of them were rosette shaped with a diameter of 5.5+/-0.8 mu m. Transmission electron microscopy revealed that these MMPs were composed of 10-16 ovoid cells and flagellated peritrichously. High-resolution transmission electron microscopy and energy dispersive X-ray analysis indicated that they biomineralized bullet-shaped magnetite crystals in highly organized parallel chains within which the magnetosomes were oriented in the same direction. This is the first report of MMPs from Asia and demonstrates the ubiquitous distribution of MMPs. |
| 关键词 | Multicellular Magnetotactic Prokaryotes Rosette-like Magnetosomes Magnetite Yellow Sea |
| 学科领域 | Marine & Freshwater Biology ; Oceanography |
| DOI | 10.1007/s00343-011-0032-8 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000287924000002 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/11689 |
| 专题 | 海洋生态与环境科学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 3.Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China 4.Ocean Univ China, Coll Marine Life Sci, Qingdao 266003, Peoples R China 5.France China Biomineralizat & Nanostruct Lab, Beijing 100029, Peoples R China 6.Univ Aix Marseille 2, CNRS, Chim Bacterienne Lab, F-13284 Marseille 07, 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,Pan Hongmiao,Zhang Shengda,et al. Occurrence and microscopic analyses of multicellular magnetotactic prokaryotes from coastal sediments in the Yellow Sea[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2011,29(2):246-251. |
| APA | Zhou Ke,Pan Hongmiao,Zhang Shengda,Yue Haidong,Xiao Tian,&Wu Longfei.(2011).Occurrence and microscopic analyses of multicellular magnetotactic prokaryotes from coastal sediments in the Yellow Sea.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,29(2),246-251. |
| MLA | Zhou Ke,et al."Occurrence and microscopic analyses of multicellular magnetotactic prokaryotes from coastal sediments in the Yellow Sea".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 29.2(2011):246-251. |
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