Diversity of Magnetotactic Bacteria from a French Pristine Mediterranean Area

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• 作者：Maxime Fuduche ; Anne Postec ; Sylvain Davidson ; Jean-Paul Chauvin…
• 刊名：Current Microbiology
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：70
• 期：4
• 页码：499-505
• 全文大小：585 KB
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• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Microbiology
  Biotechnology
  
• 出版者：Springer New York
• ISSN：1432-0991

文摘

Magnetotactic bacteria synthesize intracellular magnetite and/or greigite magnetosome crystals. They play a significant role in both iron and sulfur cycles in sedimentary aquatic environments. To get insight into the bio-geochemical contribution of MTB, more studies concerning their ecology and their distribution in diverse habitats are necessary. The MTB community of an oil-industry polluted area of the French Mediterranean coast has been previously investigated. Here, we investigate the MTB community from coastal sediments of a Mediterranean pristine area using optical and transmission electron microscopy and phylogenetic analysis based on 16S rRNA gene sequences. A particularly high diversity of MTB was observed, with cocci phylogenetically distributed across the order Magnetococcales, including a novel cluster with sequences from the Mediterranean Sea designated as “Med group- and novel morphotypes.