Temporal variation of magnetotactic bacterial communities in two freshwater sediment microcosms
文献类型：期刊论文
| 作者 | Lin, Wei1,2; Pan, Yongxin1 |
| 刊名 | FEMS MICROBIOLOGY LETTERS
 |
| 出版日期 | 2010 |
| 卷号 | 302期号:1页码:85-92 |
| 关键词 | Magnetotactic Bacteria Physical-chemical Parameters 16s Rrna Gene Unifrac Statistical Analysis |
| ISSN号 | 0378-1097 |
| DOI | 10.1111/j.1574-6968.2009.01838.x |
| 文献子类 | Article |
| 英文摘要 | Magnetotactic bacteria (MTB), which can mineralize nanosized magnetite or greigite crystals within cells, play important roles in biogeochemical processes, for example iron and sulfur cycling, and depositional remanent magnetization acquisitions. Despite decades of research, the knowledge of MTB distribution and ecology is still limited. In the present study, we investigated the temporal variation of MTB communities in freshwater sediment microcosms based on 16S rRNA genes and unifrac analyses. Two microcosms (MY8 and MY11) collected from two separate sites in Lake Miyun (Beijing, China) were analyzed. The majority of retrieved sequences belonged to alphaproteobacterial magnetotactic cocci in both microcosms (representing 64.29% of clones from MY8 and 100% of clones from MY11), whereas so-called 'Magnetobacterium bavaricum'-like MTB affiliated within Nitrospira phylum were exclusively found in microcosm MY8. Over a 3-month period, the temporal variation of MTB communities was evident in both microcosms. In addition, the phylogenetic discrepancy of MTB communities between two microcosms is more prominent than that of the same microcosm at different times, implying adaptation of MTB phylogenetic lineages to specific microenvironments. Among the physical-chemical parameters measured, a strong correlation was shown between nitrate and the main genetic variability of MTB communities, indicating that nitrate may influence the occurrence of MTB phylogenetic lineages in natural environments. |
| WOS关键词 | MAGNETOSOME FORMATION ; VERTICAL-DISTRIBUTION ; MICROBIAL COMMUNITY ; MAGNETIC-PROPERTIES ; COCCOID BACTERIA ; LAKE-SEDIMENTS ; DIVERSITY ; IDENTIFICATION ; SEQUENCE ; ZONE |
| WOS研究方向 | Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:000272171900012 |
| 出版者 | WILEY-BLACKWELL PUBLISHING, INC |
| 资助机构 | Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC(40821091) ; NSFC(40821091) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC(40821091) ; NSFC(40821091) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC(40821091) ; NSFC(40821091) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC(40821091) ; NSFC(40821091) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/73013]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Pan, Yongxin |
| 作者单位 | 1.Chinese Acad Sci, Biogeomagnetism Grp, Paleomagnetism & Geochronol Lab, Key Lab Earths Deep Interior,Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Wei,Pan, Yongxin. Temporal variation of magnetotactic bacterial communities in two freshwater sediment microcosms[J]. FEMS MICROBIOLOGY LETTERS,2010,302(1):85-92. |
| APA | Lin, Wei,&Pan, Yongxin.(2010).Temporal variation of magnetotactic bacterial communities in two freshwater sediment microcosms.FEMS MICROBIOLOGY LETTERS,302(1),85-92. |
| MLA | Lin, Wei,et al."Temporal variation of magnetotactic bacterial communities in two freshwater sediment microcosms".FEMS MICROBIOLOGY LETTERS 302.1(2010):85-92. |
入库方式： OAI收割
来源：地质与地球物理研究所
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