2006
DOI: 10.1007/s10529-005-5526-z
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Abstract: A Bacillus sp. RE was resistant to chromium and reduced Cr(VI) without accumulating chromium inside the cell. When Cr(VI) was 10 and 40 microg ml(-1), >95% of the total Cr(VI) was reduced in 24 and 72 h of growth, respectively, whereas at 80 microg Cr(VI) ml(-1 )only 50% of Cr(VI) was reduced. However growth was not affected; the cell mass was 0.7-0.8 mg ml(-1) in all cases. The cell-free extract showed Cr(VI) reducing enzyme activity which was enhanced (>5 fold) by NADH and NADPH. Like whole cells the enzyme … Show more

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Cited by 149 publications
(88 citation statements)
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“…Copper and mercury also inhibit chromate reduction in Bacillus sp. (Elangovan et al 2006) and Enterobacter cloacae strain H01 (Rege et al 1997). The target site of inhibition by these two heavy metals is suggested to be the sulfhydryl group (Rege et al 1997;Elangovan et al 2006) and is probably similar to the Mo-reducing enzyme, as the sulfhydryl group is known to be inhibited by these metals ions (Shukor et al 2006).…”
Section: Effect Of Heavy Metalsmentioning
confidence: 99%
See 1 more Smart Citation
“…Copper and mercury also inhibit chromate reduction in Bacillus sp. (Elangovan et al 2006) and Enterobacter cloacae strain H01 (Rege et al 1997). The target site of inhibition by these two heavy metals is suggested to be the sulfhydryl group (Rege et al 1997;Elangovan et al 2006) and is probably similar to the Mo-reducing enzyme, as the sulfhydryl group is known to be inhibited by these metals ions (Shukor et al 2006).…”
Section: Effect Of Heavy Metalsmentioning
confidence: 99%
“…(Elangovan et al 2006) and Enterobacter cloacae strain H01 (Rege et al 1997). The target site of inhibition by these two heavy metals is suggested to be the sulfhydryl group (Rege et al 1997;Elangovan et al 2006) and is probably similar to the Mo-reducing enzyme, as the sulfhydryl group is known to be inhibited by these metals ions (Shukor et al 2006). Since most of the toxic heavy metals above are cations, the addition of cationic metal-sequestering compounds, such as manganese oxide, phosphate, calcium carbonate, and magnesium hydroxide, have already been used to remediate cationic heavy metals toxicity (Hettiarachchi et al 2000).…”
Section: Effect Of Heavy Metalsmentioning
confidence: 99%
“…Several works have demonstrated that mercury and copper inhibit the metalreducing enzyme chromate reductase by binding at the sulfhydryl group of the enzyme in the bacteria Bacillus sp. [46] and Enterobacter cloacae strain H01 [47]. The presence of these ions reduces the detoxification of chromium in the environment.…”
Section: +mentioning
confidence: 99%
“…The reduction/detoxification of Cr (VI) by microbes is, however, inexpensive and environmentally safe approach and provides a viable option to protect the environment from chromium toxicity. The reduction of Cr (VI) has been reported in Bacillus (Elangovan et al, 2006;Chaturvedi, 2011), Pseudomonas sp. (Rahman et al, 2007), Escherichia coli (Bae et al, 2005), Microbacterium (Pattanapipitpaisal et al, 2001), Ochrobactrum intermedium (Faisal and Hansnain, 2005) and Micrococcus (Sultan and Hasnain, 2005).…”
Section: Introductionmentioning
confidence: 99%