Adaptation of spherical multicellular magnetotactic prokaryotes to the geochemically variable habitat of an intertidal zone

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	Adaptation of spherical multicellular magnetotactic prokaryotes to the geochemically variable habitat of an intertidal zone
	Zhou, Ke 1,2; Zhang, Wen-Yan 1,2; Pan, Hong-Miao 1,2; Li, Jin-Hua 2,3; Yue, Hai-Dong 1,2; Xiao, Tian 1,2; Wu, Long-Fei 2,4
刊名	ENVIRONMENTAL MICROBIOLOGY
	2013-05-01
卷号	15 期号:5 页码:1595-1605
ISSN号	1462-2912
通讯作者	Xiao, T
中文摘要	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.
英文摘要	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.
学科主题	Microbiology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Microbiology
研究领域[WOS]	Microbiology
关键词[WOS]	CANDIDATUS-MAGNETOGLOBUS-MULTICELLULARIS ; YELLOW SEA ; HYPERSALINE LAGOON ; MARINE-SEDIMENTS ; GREIGITE FE3S4 ; SALT POND ; NORTH-SEA ; BACTERIA ; ULTRASTRUCTURE ; CHINA
收录类别	SCI
原文出处	10.1111/1462-2920.12057
语种	英语
WOS记录号	WOS:000318041800027
公开日期	2014-07-17
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/16456]
专题	海洋研究所_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.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
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.,...&Wu, Long-Fei.(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.