Novel arsenic hyper-resistant bacteria from an extreme environment, Crven Dol mine, Allchar, North Macedonia

نویسندگان

چکیده

Novel hyper-resistant bacteria were isolated from the Crven Dol mine (Allchar, North Macedonia), arsenic-rich extreme environment. Bacteria recovered a secondary mineral mixture, an alteration of hydrothermal realgar rich in arsenates (pharmacolite, hornesite, and talmessite). The sample was dark part at 28 m depth. Three bacterial strains consortium for their capacity to survive exposure 32 g/L (209 mM) arsenite, 176 (564 arsenate. 16S rRNA gene analysis identified isolates as Stenotrophomonas sp. two Microbacterium spp. This also revealed that comprise Bacteriodetes exhibiting similarity Olivibacter ginsengisoli uncultured bacterium, one γ-proteobacteria with Luteimonas Among all exhibited highest tolerance As compound well accumulate inside cells. Analysis genes involved As-resistance showed possess encoding ArsB, Acr3(1) Acr3(2) proteins, indicating least resistance could be ascribed As-efflux systems described obtained human-polluted environments.

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ژورنال

عنوان ژورنال: Journal of Hazardous Materials

سال: 2021

ISSN: ['1873-3336', '0304-3894']

DOI: https://doi.org/10.1016/j.jhazmat.2020.123437