Electrotrophic perchlorate reduction by a psychrotolerant acidophile isolated from an acid rock drainage in Antarctica.
Acidithiobacillus ferrivorans
Acidophile
Antarctica
Biocathode
Extremophile
Oxyanions
Journal
Bioelectrochemistry (Amsterdam, Netherlands)
ISSN: 1878-562X
Titre abrégé: Bioelectrochemistry
Pays: Netherlands
ID NLM: 100953583
Informations de publication
Date de publication:
Aug 2023
Aug 2023
Historique:
received:
16
02
2023
revised:
12
04
2023
accepted:
29
04
2023
medline:
5
6
2023
pubmed:
14
5
2023
entrez:
13
5
2023
Statut:
ppublish
Résumé
A new extremophilic isolate (USS-CCA7) was obtained from an acidic environment (pH ∼ 3.2) in Antarctica phylogenetically related to Acidithiobacillus ferrivorans; its electrotrophic capacities were evaluated in a three-electrode electrochemical cell. Cyclic voltammetry showed cathodic peaks of -428 mV, -536 mV, and -634 mV (vs. Ag/AgCl; pH = 1.7; 3 M KCl) for nitrate, oxygen, and perchlorate, respectively. The catalytic role of this microorganism was also observed by a decrease in the charge transfer resistance registered via electrochemical impedance spectroscopy. Five-day chronoamperometry of culture at pH = 1.7, USS-CCA7 showed a perchlorate removal rate of 19.106 ± 1.689 mgL
Identifiants
pubmed: 37178525
pii: S1567-5394(23)00095-6
doi: 10.1016/j.bioelechem.2023.108458
pii:
doi:
Substances chimiques
perchlorate
VLA4NZX2P4
Perchlorates
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
108458Informations de copyright
Copyright © 2023 Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.