Microbial composition and ecological features of phototrophic biofilms proliferating in the Moidons Caves (France): investigation at the single-cell level

Abstract : The authors investigated the microbial composition of phototrophic biofilms proliferating in a show cave using flow cytometry for the first time in such a context. Results are based on several biofilms sampled in the Moidons Caves (France) and concern both heterotrophic prokaryotes and autotrophic microorganisms. Heterotrophic microorganisms with low nucleic acid content were dominant in biofilms, as can be expected from the oligotrophic conditions prevailing within the cave. Analysis of the biofilm autotrophic components revealed the presence of several taxa, particularly the unicellular green algae Chlorella minutissima, specifically well adapted to this cave. Relationships between flow cytometry results and environmental variables determined in the cave were established and discussed so as to better understand biofilm proliferation processes in caves.
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Article dans une revue
Environmental Science and Pollution Research, Springer Verlag, 2016, 11 p. 〈10.1007/s11356-016-6414-x〉
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https://hal.archives-ouvertes.fr/hal-01288087
Contributeur : Catherine Pagani <>
Soumis le : lundi 14 mars 2016 - 15:46:41
Dernière modification le : mercredi 5 septembre 2018 - 17:04:03

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Fabien Borderie, Michel Denis, Aude Barani, Badr Alaoui-Sossé, Lotfi Aleya. Microbial composition and ecological features of phototrophic biofilms proliferating in the Moidons Caves (France): investigation at the single-cell level. Environmental Science and Pollution Research, Springer Verlag, 2016, 11 p. 〈10.1007/s11356-016-6414-x〉. 〈hal-01288087〉

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