Degradation of hexachlorocyclohexane (HCH; alpha, beta, gamma and delta) by Bacillus circulans and Bacillus brevis isolated from soil contaminated with HCH

Authors
Gupta, A Kaushik, CP Kaushik, A
Citation
A. Gupta et al., Degradation of hexachlorocyclohexane (HCH; alpha, beta, gamma and delta) by Bacillus circulans and Bacillus brevis isolated from soil contaminated with HCH, SOIL BIOL B, 32(11-12), 2000, pp. 1803-1805
Citations number
10
Categorie Soggetti
Environment/Ecology
Journal title
SOIL BIOLOGY & BIOCHEMISTRY
ISSN journal
00380717 → ACNP
Volume
32
Issue
11-12
Year of publication
2000
Pages
1803 - 1805
Database
ISI
SICI code
0038-0717(200010)32:11-12<1803:DOH(AB>2.0.ZU;2-6
Abstract
Hexachlorocyclohexane (HCH; alpha, beta, gamma and delta) degradation effic iency of acclimatized Bacillus circulans and Bacillus brevis was studied un der aerobic conditions on nutrient agar. These bacteria were isolated from HCH contaminated soil and acclimatized to different concentrations of HCH f or more than 2 years. Acclimatized bacteria degraded at a significantly hig h rate not only the alpha and gamma isomers but also the thermodynamically stable beta and delta isomers at different concentrations, suggesting their potential for degradation of even the aged residues. (C) 2000 Elsevier Sci ence Ltd. All rights reserved.