@misc{54228, type = "Article", year = "2018", title = "Specific enrichment of hyperthermophilic electroactive Archaea from deep-sea hydrothermal vent on electrically conductive support.", journal = "Bioresource Technology", editor = "Elsevier Sci Ltd", volume = "259", number = "", pages = "304-311", author = "Pillot Guillaume, Frouin Eleonore, Pasero Emilie, Godfroy Anne, Combet-Blanc Yannick, Davidson Sylvain, Liebgott Pierre-Pol", url = "", organization = "", address = "FRANCE", doi = "https://doi.org/10.1016/j.biortech.2018.03.053", abstract = "
While more and more investigations are done to study hyperthermophilic exoelectrogenic communities from environments, none have been performed yet on deep-sea hydrothermal vent. Samples of black smoker chimney from Rainbow site on the Atlantic mid-oceanic ridge have been harvested for enriching exoelectrogens in microbial electrolysis cells under hyperthermophilic (80 °C) condition. Two enrichments were performed in a BioElectrochemical System specially designed: one from direct inoculation of crushed chimney and the other one from inoculation of a pre-cultivation on iron (III) oxide. In both experiments, a current production was observed from 2.4 A/m2 to 5.8 A/m2 with a set anode potential of -0.110 V vs Ag/AgCl. Taxonomic affiliation of the exoelectrogen communities obtained on the electrode exhibited a specific enrichment of Archaea belonging to Thermococcales and Archeoglobales orders, even when both inocula were dominated by Bacteria.
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