ChrASO, the chromate efflux pump of Shewanella oneidensis, improves chromate survival and reduction - Archive ouverte HAL Access content directly
Journal Articles PLoS ONE Year : 2017

ChrASO, the chromate efflux pump of Shewanella oneidensis, improves chromate survival and reduction

Abstract

The chromate efflux pump encoding gene chrA SO was identified on the chromosome of She-wanella oneidensis MR1. Although chrA SO is expressed without chromate, its expression level increases when Cr(VI) is added. When deleted, the resulting mutant ΔchrA SO exhibits a chromate sensitive phenotype compared to that of the wild-type strain. Interestingly, heter-ologous expression of chrA SO in E. coli confers resistance to high chromate concentration. Moreover, expression of chrA SO in S. oneidensis and E. coli significantly improves Cr(VI) reduction. This effect could result either from extracytoplasmic chromate reduction or from a better cell survival leading to enhanced Cr(VI) reduction.
Fichier principal
Vignette du fichier
journal.pone.0188516.pdf (4.33 Mo) Télécharger le fichier
Origin : Publication funded by an institution
Loading...

Dates and versions

hal-01696687 , version 1 (30-01-2018)

Licence

Attribution

Identifiers

Cite

Hiba Baaziz, Cyril Gambari, Anne Boyeldieu, Amine Ali Chaouche, Radia Alatou, et al.. ChrASO, the chromate efflux pump of Shewanella oneidensis, improves chromate survival and reduction. PLoS ONE, 2017, 12 (11), pp.e0188516. ⟨10.1371/journal.pone.0188516⟩. ⟨hal-01696687⟩

Collections

CNRS UNIV-AMU
110 View
58 Download

Altmetric

Share

Gmail Facebook X LinkedIn More