ArticleMicrobial ecology2008
Molecular analysis of the spatio-temporal distribution of sulfate-reducing bacteria (SRB) in Camargue (France) hypersaline microbial mat.
Article in Microbial ecology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Microbial mats as model to decipher climate change effect on microbial communities through a mesocosm study.Frontiers in microbiology · 2023Article
- Community Vertical Composition of the Laguna Negra Hypersaline Microbial Mat, Puna Region (Argentinean Andes).Biology · 2022Article
- Variation of Oxygenation Conditions on a Hydrocarbonoclastic Microbial Community RevealsFrontiers in microbiology · 2017Article
- Distribution of Sulfate-Reducing Communities from Estuarine to Marine Bay Waters.Microbial ecology · 2017Article
- Functional Stability and Community Dynamics during Spring and Autumn Seasons Over 3 Years in Camargue Microbial Mats.Frontiers in microbiology · 2017Article
- Exploring Actinobacteria assemblages in coastal marine sediments under contrasted Human influences in the West Istria Sea, Croatia.Environmental science and pollution research international · 2015Article
- Application of denaturing high-performance liquid chromatography for monitoring sulfate-reducing bacteria in oil fields.Applied and environmental microbiology · 2013Article
- Intact phospholipid and quinone biomarkers to assess microbial diversity and redox state in microbial mats.Microbial ecology · 2010Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The spatio-temporal distribution of sulfate-reducing bacteria (SRB) in the microbial mat of Camargue (Salins-de-Giraud, France) was investigated by molecular approaches at both microscale spatial resolution and different taxonomic organization levels. The vertical distribution of the SRB populations was correlated with oxygen and sulfide microgradient fluctuations. Comparisons of Terminal restriction fragment length polymorphism (T-RFLP) fingerprints showed distinct locations of some operational taxonomic units at daytime and at night (4:00 or 15:00 hours) revealing important differences on the structures of the bacterial communities. When oxygen penetrates the mat, SRB migration was observed either downward to reach deeper anoxic zones to escape oxygen or upward to reach oxic surface zones. When no migration was observed, both metabolism switches and aggregate formations were suspected. These behaviors allowed the aerotolerant SRB to deal with oxygen. The analysis of the Desulfococcus-Desulfonema-Desulfosarcina T-RFLP profiles revealed up-migrating populations related to both Desulfonema sp. and Desulfosarcina variabilis. T-RFLP profiles combined with 16S ribosomal ribonucleic acid gene library analysis of the Desulfobacter group revealed two distinct populations: a population related to the recently described Desulfotignum genus migrating upward during the night and a population of a new species of the Desulfobacter uniformly located throughout the mat independent of the period. Thus, the identification of the new oxygen-tolerant SRB will provide the basis for understanding the physiological adaptations to oxygen.
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