Institutional Repository of Key Laboratory of Marine Ecology & Environmental Sciences, CAS
| Adaptation of spherical multicellular magnetotactic prokaryotes to the geochemically variable habitat of an intertidal zone | |
| Zhou, Ke1,2; Zhang, Wen-Yan1,2; Pan, Hong-Miao1,2; Li, Jin-Hua2,3; Yue, Hai-Dong1,2; Xiao, Tian1,2; Wu, Long-Fei2,4; Xiao, T | |
| 2013-05-01 | |
| 发表期刊 | ENVIRONMENTAL MICROBIOLOGY
 |
| ISSN | 1462-2912 |
| 卷号 | 15期号:5页码:1595-1605 |
| 文章类型 | Article |
| 摘要 | A combination of microscopic, molecular and biogeochemical methods was used to study the structure, phylogenetics and vertical distribution of spherical multicellular magnetotactic prokaryotes (MMPs) of intertidal sediments in the Yellow Sea. These MMPs were 5.5m in diameter and composed of approximately 1530 cells. They synthesized bullet-shaped magnetites in chains or clusters. Phylogenetic analysis of 16S rRNA gene sequences suggested that these MMPs represent a novel species affiliated to the Deltaproteobacteria. To study their vertical distribution and the relationship to geochemical parameters, sediment cores were collected after the redox potential was measured in situ. The sediments were composed of yellow, grey and black layers from the surface to depth. The spherical MMPs were concentrated near the grey-black layer transition at a depth of 812cm, while coccoid-shaped magnetotactic bacteria near the yellow-grey layer transition at a depth of 35cm. The intertidal MMPs showed a deeper distribution at more reduced environments than coccoid-shaped magnetotactic bacteria, and MMPs in lagoon sediments. Additionally the MMPs were concentrated significantly in layers with high proportion of fine sand and total organic carbon, rich in leachable iron but poor in nitrate. These results show an adaptation of spherical MMPs to the peculiar intertidal sediment habitat.; A combination of microscopic, molecular and biogeochemical methods was used to study the structure, phylogenetics and vertical distribution of spherical multicellular magnetotactic prokaryotes (MMPs) of intertidal sediments in the Yellow Sea. These MMPs were 5.5m in diameter and composed of approximately 1530 cells. They synthesized bullet-shaped magnetites in chains or clusters. Phylogenetic analysis of 16S rRNA gene sequences suggested that these MMPs represent a novel species affiliated to the Deltaproteobacteria. To study their vertical distribution and the relationship to geochemical parameters, sediment cores were collected after the redox potential was measured in situ. The sediments were composed of yellow, grey and black layers from the surface to depth. The spherical MMPs were concentrated near the grey-black layer transition at a depth of 812cm, while coccoid-shaped magnetotactic bacteria near the yellow-grey layer transition at a depth of 35cm. The intertidal MMPs showed a deeper distribution at more reduced environments than coccoid-shaped magnetotactic bacteria, and MMPs in lagoon sediments. Additionally the MMPs were concentrated significantly in layers with high proportion of fine sand and total organic carbon, rich in leachable iron but poor in nitrate. These results show an adaptation of spherical MMPs to the peculiar intertidal sediment habitat. |
| 学科领域 | Microbiology |
| DOI | 10.1111/1462-2920.12057 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Microbiology |
| WOS类目 | Microbiology |
| WOS记录号 | WOS:000318041800027 |
| WOS关键词 | CANDIDATUS-MAGNETOGLOBUS-MULTICELLULARIS ; YELLOW SEA ; HYPERSALINE LAGOON ; MARINE-SEDIMENTS ; GREIGITE FE3S4 ; SALT POND ; NORTH-SEA ; BACTERIA ; ULTRASTRUCTURE ; CHINA |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/16456 |
| 专题 | 海洋生态与环境科学重点实验室 |
| 通讯作者 | Xiao, T |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.France China Biomineralizat & Nanostruct Lab, Beijing 100193, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earths Deep Interior, Paleomagnetism & Geochronol Lab, Beijing 100029, Peoples R China 4.Aix Marseille Univ, CNRS, Lab Chim Bacterienne, 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,Pan, Hong-Miao,et al. Adaptation of spherical multicellular magnetotactic prokaryotes to the geochemically variable habitat of an intertidal zone[J]. ENVIRONMENTAL MICROBIOLOGY,2013,15(5):1595-1605. |
| APA | Zhou, Ke.,Zhang, Wen-Yan.,Pan, Hong-Miao.,Li, Jin-Hua.,Yue, Hai-Dong.,...&Xiao, T.(2013).Adaptation of spherical multicellular magnetotactic prokaryotes to the geochemically variable habitat of an intertidal zone.ENVIRONMENTAL MICROBIOLOGY,15(5),1595-1605. |
| MLA | Zhou, Ke,et al."Adaptation of spherical multicellular magnetotactic prokaryotes to the geochemically variable habitat of an intertidal zone".ENVIRONMENTAL MICROBIOLOGY 15.5(2013):1595-1605. |
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