Data/hora: 09/06/2024 09:26:16

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | Specific enrichment of hyperthermophilic electroactive Archaea from deep-sea hydrothermal vent on electrically conductive support.
Autores: | Pillot, Guillaume; Frouin, Eleonore; Pasero, Emilie; Godfroy, Anne; Combet-blanc, Yannick; Davidson, Sylvain; Liebgott, Pierre-pol.
Data: | 2018-07
Ano: | 2018
Palavras-chave: | Hyperthermophilic exoelectrogens; Deep-sea hydrothermal vent; Microbial electrolysis cell; External electron transfer.
Resumo: | 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.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00431/54228/55551.pdf

DOI:10.1016/j.biortech.2018.03.053

https://archimer.ifremer.fr/doc/00431/54228/

Editor: | Elsevier Sci Ltd
Formato: | application/pdf
Fonte: | Bioresource Technology (0960-8524) (Elsevier Sci Ltd), 2018-07 , Vol. 259 , P. 304-311

Fonte:

2018 Elsevier Ltd. All rights reserved.

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