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Diversity of magnetotactic bacteria from a French pristine Mediterranean area.

Abstract : 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.
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https://hal.archives-ouvertes.fr/hal-01146287
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Submitted on : Tuesday, April 28, 2015 - 10:24:22 AM
Last modification on : Monday, January 17, 2022 - 1:23:41 PM

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Maxime Fuduche, Anne Postec, Sylvain Davidson, Jean-Paul Chauvin, Grégoire Galès, et al.. Diversity of magnetotactic bacteria from a French pristine Mediterranean area.. Current Microbiology, 2015, 70 (4), pp.499-505. ⟨10.1007/s00284-014-0745-y⟩. ⟨hal-01146287⟩

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