Magnetotactic bacteria population in a pristine French Atlantic lagoon.
In this study, we report for the first time the presence of magnetotactic bacteria (MTB) on the Northeastern Atlantic coast. Microscopy observations indicated a heterogeneous population of MTB morphotypes. The analysis of the 16S rDNA by pyrosequencing technology revealed four operational taxonomic sequence units affiliated within the Magnetococcales order, class Alphaproteobacteria. One of them was closely related to sequences of MTB from the Tunisian coast, central Mediterranean Sea. This work offers information on anew environmental context and on biogeography of MTB, highlights the putative impact that marine currents may have on MTB distribution on Earth, and underlines the role that pristine or polluted areas may play on the structure of the MTB communites.
Aix Marseille Université, IRD, Université de Toulon, CNRS/INSU, MIO, UM 110, 13288, Marseille, cedex 09, France. nathalie.pradel@ird.fr.|Laboratoire Mixte International Contaminants et Ecosystèmes Marins Sud Méditerranéens (LMI COSYS-Med), Marseille, France. nathalie.pradel@ird.fr.
Nathalie
N
Pradel
Aix Marseille Université, IRD, Université de Toulon, CNRS/INSU, MIO, UM 110, 13288, Marseille, cedex 09, France.
Maxime
M
Fuduche
Aix Marseille Université, IRD, Université de Toulon, CNRS/INSU, MIO, UM 110, 13288, Marseille, cedex 09, France.|Laboratoire Mixte International Contaminants et Ecosystèmes Marins Sud Méditerranéens (LMI COSYS-Med), Marseille, France.
Bernard
B
Ollivier
D020561:Alphaproteobacteria / Q000302:isolation & purification*; D004269:DNA, Bacterial / Q000032:analysis; D004275:DNA, Ribosomal / Q000032:analysis; D008522:Mediterranean Sea; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000032:analysis; D014871:Water Microbiology
D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S
Atlantic; Magnetococcales; Magnetotactic bacteria; Marine currents; Mediterranean sea; Pristine area