趋磁细菌
趋磁细菌(英語:,缩写MTB)是细菌中的一个多系群,由Richard P. Blakemore于1975年发现,能感应地磁场的磁感线。为达到这一功能,这些细菌拥有一个叫作磁小体的細胞器来贮存磁性晶体。这些微生物会定向移动来响应环境磁场的现象被称为趋磁性,有南趣(south-seeking)与北趣(north-seeking)(趣通趋)两种趋磁行为。和动物的磁感应相比,这些带有磁铁的细菌还能定向排列(甚至包括死细胞),就像指南针一样[1],这被认为能有助于这些细菌达到最佳的氧浓度区域[2]。
参考文献
- Dusenbery, David B. (1996). “Life at Small Scale”, pp. 100-101. Scientific American Library, New York. ISBN 0-7167-5060-0.
- Dusenbery, David B. (2009). Living at Micro Scale, pp. 164-167. Harvard University Press, Cambridge, Mass. ISBN 978-0-674-03116-6.
外部链接
- http://www.gps.caltech.edu/~jkirschvink/magnetofossil.html (页面存档备份,存于)
- http://www.calpoly.edu/~rfrankel/mtbcalpoly.html(页面存档备份,存于)
- http://www.agu.org/revgeophys/moskow01/moskow01.html (页面存档备份,存于)
- Comparative Genome Analysis of Four Magnetotactic Bacteria Reveals a Complex Set of Group-Specific Genes Implicated in Magnetosome Biomineralization and Function Journal of Bacteriology, July 2007 (页面存档备份,存于)
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