Isolation and characterization of arsenic reducing bacteria from industrial effluents and their potential use in bioremediation of wastewater
2010
Shakoori, F.R. (Government Coll. Univ., Lahore (Pakistan). Dept. of Zoology) | Aziz, I. (Government Coll. Univ., Lahore (Pakistan). Dept. of Zoology) | Rehman, A. (Punjab Univ., Lahore (Pakistan). Dept. of Microbiology and Molecular Genetics) | Shakoori, A.R. (Punjab Univ., Lahore (Pakistan). School of Biological Sciences)
The present study is aimed at assessing the ability of Klebsiella oxytoca, Citrobacter freundii and Bacillus anthracis to reduce arsenate into arsenite. C. freundii and B. anthracis could tolerate As (V) up to 290 mg/l. K. oxytoca resisted As up to 240 mg/l. K. oxytoca and B. anthracis showed optimum growth at pH 7 while C. freundii showed maximum growth at pH 5. C. freundii and B. anthracis showed optimum growth at 37 degree C while the maximum growth of K. oxytoca was observed at 30 degree C. K. oxytoca and B. anthracis were found sensitive against ampicillin while C. freundii showed resistance against it. C. freundii and B. anthracis were sensitive to erythromycin, kanamycine, nalidixic acid, and tetracycline while K. oxytoca was found resistant against these antibiotics.
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