Multiple resistance mechanisms in Staphylococcus sp. strain AS6 under arsenite stress and its potential use in amelioration of wastewater

Sher, Shahid; Hussain, Syed Zajif; Rehman, Abdul

doi:10.1016/j.jksus.2020.08.012

Cited by 9 publications

(1 citation statement)

References 33 publications

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“…As conventional cleanup strategies are being used to remove the heavy metal ions from the polluted areas but these are expensive and feasible only in small areas. Researchers have found new cost effective methods that include the use of microorganisms (Naureen and Rehman 2016;Sher et al 2020b), biomass (Jaafari and Yaghmaeian 2019;Sultana et al 2020) and live plants (Zargar et al 2013;Ojuederie and Babalola 2017).…”

Section: Introductionmentioning

confidence: 99%

Characterization of multiple metal resistant Bacillus licheniformis and its potential use in arsenic contaminated industrial wastewater

2021

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In the present study, the arsenic bioremediation ability of Bacillus licheniformis (dubbed as A6) was determined. The strain was isolated from metal polluted wastewater and was identified on the basis of 16S rRNA sequence homology with accession number of KX 785,171. The bacterium showed resistance against multiple toxic heavy metals, and MIC against arsenic was 3000 µg/ml. Resistance of the bacterium against other toxic metal ions was 3000 µg/ml (Cr), 50 µg/ml (Hg), 1000 µg/ml (Mn), 4000 µg/ml (Se), 500 µg/ml (Pb), 100 µg/ml (Co), 70 µg/ml (Cd) and 100 µg/ml (Zn). The optimum growth temperature was 37 °C while pH was 7. The strain also showed resistance against commonly used antibiotics except ceftriaxone 30 µg and amoxicillin with clavulanic acid (2:1) 3 µg. B. licheniformis could oxidize arsenite into arsenate 86 and 98% after 48 and 96 h from the medium at optimum growth conditions. Due to its high oxidation potential, B. licheniformis can be used in the biological treatment of wastewater containing arsenic.

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