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Curr Microbiol. 2015 Apr;70(4):499-505. doi: 10.1007/s00284-014-0745-y. Epub 2014 Dec 9.

Diversity of magnetotactic bacteria from a French pristine Mediterranean area.

Author information

1
Aix-Marseille Université, IRD, CNRS/INSU, MIO, UM 110, Case 901, 13288, Marseille, Cedex 09, France.

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.

PMID:
25487117
DOI:
10.1007/s00284-014-0745-y
[Indexed for MEDLINE]

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