中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
Phototaxis in the magnetotactic bacterium Magnetospirillum magneticum strain AMB-1 is independent of magnetic fields

文献类型：期刊论文

作者Chen, Chuanfang1,2,3; Ma, Qiufeng1,2,3; Jiang, Wei1,3; Song, Tao1,3
刊名APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
出版日期2011-04-01
卷号90期号:1页码:269-275
关键词Magnetotactic bacteria Phototaxis Magnetospirillum magneticum AMB-1
ISSN号0175-7598
DOI10.1007/s00253-010-3017-1
文献子类Article
英文摘要Magnetotactic bacteria (MTB) can rapidly relocate to optimal habitats by magneto-aerotaxis. Little is known about MTB phototaxis, a response that might also aid navigation. In this study, we analyzed the relationship between phototaxis and magnetotaxis in Magnetospirillum magneticum strain AMB-1. Magnotactic AMB-1 cells migrated toward light, and migration increased with higher light intensity. This response was independent of wavelength, as AMB-1 cells migrated equally toward light from 400 to 750 nm. When AMB-1 cells were exposed to zero magnetic fields or to 0.2 mT magnetic fields that were opposite or orthogonal to the light beam, cells still migrated toward the light, indicating that phototaxis was independent of magnetotaxis. The R (mag) value and coercive force (H (c)) of AMB-1 increased when the bacteria were illuminated for 20 h, consistent with an increase in magnetosome synthesis or in magnetosome-containing cells. These results demonstrated that the M. magneticum AMB-1 responded to light as well as other environmental factors. To our knowledge, this is the first report of phototactic behavior in the bacteria of Magnetospirillum.
WOS关键词BIOMINERALIZATION ; AEROTAXIS ; BEHAVIOR ; COMPLEX
WOS研究方向Biotechnology & Applied Microbiology
语种英语
WOS记录号WOS:000288252000025
出版者SPRINGER
资助机构Human Frontier Science Program(RGP0035/2004-C104) ; Human Frontier Science Program(RGP0035/2004-C104) ; Human Frontier Science Program(RGP0035/2004-C104) ; Human Frontier Science Program(RGP0035/2004-C104) ; Human Frontier Science Program(RGP0035/2004-C104) ; Human Frontier Science Program(RGP0035/2004-C104) ; Human Frontier Science Program(RGP0035/2004-C104) ; Human Frontier Science Program(RGP0035/2004-C104)
源URL[http://ir.iggcas.ac.cn/handle/132A11/74080]  
专题中国科学院地质与地球物理研究所
通讯作者Song, Tao
作者单位1.Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.France China Biomineralizat & Nanostruct Lab, Beijing 100193, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Chuanfang,Ma, Qiufeng,Jiang, Wei,et al. Phototaxis in the magnetotactic bacterium Magnetospirillum magneticum strain AMB-1 is independent of magnetic fields[J]. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,2011,90(1):269-275.
APA Chen, Chuanfang,Ma, Qiufeng,Jiang, Wei,&Song, Tao.(2011).Phototaxis in the magnetotactic bacterium Magnetospirillum magneticum strain AMB-1 is independent of magnetic fields.APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,90(1),269-275.
MLA Chen, Chuanfang,et al."Phototaxis in the magnetotactic bacterium Magnetospirillum magneticum strain AMB-1 is independent of magnetic fields".APPLIED MICROBIOLOGY AND BIOTECHNOLOGY 90.1(2011):269-275.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。