Data/hora: 09/06/2024 09:23:59

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | Electroactive Bacteria Associated With Stainless Steel Ennoblement in Seawater
Autores: | Trigodet, Florian; Larche, Nicolas; Morrison, Hilary G.; Jebbar, Mohamed; Thierry, Dominique; Maignien, Lois.
Data: | 2019-02
Ano: | 2019
Palavras-chave: | Ennoblement; Electroactive bacteria; Stainless steel; Microbial ecology; 16S rRNA gene.
Resumo: | Microorganisms can increase the open-circuit potential of stainless steel immersed in seawater of several hundred millivolts in a phenomenon called ennoblement. It raises the chance of corrosion as the open-circuit potential may go over the pitting corrosion potential. Despite the large impact of the ennoblement, no unifying mechanisms have been described as responsible for the phenomenon. Here we show that the strict electrotroph bacterium "Candidatus Tenderia electrophaga" is detected as an ennoblement biomarker and is only present at temperatures at which we observe ennoblement. This bacterium was previously enriched in biocathode systems. Our results suggest that "Candidatus Tenderia electrophaga," and its previously described extracellular electron transfer metabolism coupled to oxygen reduction activity, could play a central role in modulating stainless steel open-circuit potential and consequently mediating ennoblement.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00482/59371/62144.pdf

https://archimer.ifremer.fr/doc/00482/59371/62145.pdf

DOI:10.3389/fmicb.2019.00170

https://archimer.ifremer.fr/doc/00482/59371/

Editor: | Frontiers Media Sa
Formato: | application/pdf
Fonte: | Frontiers In Microbiology (1664-302X) (Frontiers Media Sa), 2019-02 , Vol. 10 , N. 170 , P. 9p.

Fonte:

info:eu-repo/semantics/openAccess

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