Magnetotactic Bacteria in Microcosms Originating from the French Mediterranean Coast Subjected to Oil Industry Activities
type: Dataset
description: Magnetotactic bacteria (MTB) mineralize nanosized magnetite or greigite crystals within cells and thus play an important role in the biogeochemical process. Despite decades of research, knowledge of MTB distribution and ecology, notably in areas subjected to oil industry activities, is still limited. In the present study, we investigated the presence of MTB in the Gulf of Fos, French Mediterranean coast, which is subjected to intensive oil industry activities. Microcosms containing sediments/water (1:2, v/v) from several sampling sites were monitored over several weeks. The presence of MTB was revealed in five of eight sites. Diverse and numerous MTB were revealed particularly from one site (named CAR), whilst temporal variations of a homogenous magnetotactic cocci population was shown within the LAV site microcosm over a 4-month period. Phylogenetic analysis revealed that they belonged to Alphaproteobacteria, and a novel genus from the LAV site was evidenced. Among the physicochemical parameters measured, a correlation was shown between the variation of MTB abundance in microcosms and the redox state of sulphur compounds.
issued: 2026-05-22T00:55:58.015831
language: en
modified: 2026-05-22T00:55:58.015836
contact point: Organization
  fn: CCSD
keyword: diversity
keyword: infoeu-reposemanticsarticle
keyword: journal-articles
keyword: magnetic-bacteria
keyword: natural-waters
keyword: populations
keyword: prokaryote
keyword: salt-pond
keyword: sduoceansciences-of-the-universe-physicsocean-atmosphere
keyword: sea
keyword: sp-nov
keyword: sulfate-reducing-bacterium
keyword: sulfur-oxidation
landing page: 0095-3628

Magnetotactic Bacteria in Microcosms Originating from the French Mediterranean Coast Subjected to Oil Industry Activities
type: Distribution
format: HTML
issued: 2026-05-22T00:55:58.042336
modified: 2026-05-22T00:55:57.966664
access URL: https://hal.science/hal-00687453

test_moissonnage_selune
type: Agent