caa a22 4500 475746910 CHVBK 20180406123516.0 cr unu---uuuuu 170329e20001101xx s 000 0 eng 10.1007/s002840010140 doi (NATIONALLICENCE)springer-10.1007/s002840010140 Enhanced Degradation of Hexachlorocyclohexane Isomers by Sphingomonas paucimobilis [Elektronische Daten] [Atuk K. Johri, Meenakshi Dua, D.M. Saxena, N. Sethunathan] Hexachlorocyclohexane (HCH) has been banned for use in technologically advanced countries; however, it is still in use in tropical countries like India. Earlier we reported the degradation of HCH isomers by Sphingomonas paucimobilis within 12 days of incubation. Here we report the role of different factors that could enhance the degradation rate of HCH isomers. We found that an increase in the cell number from 102 to 108 cells/ml resulted in an increased degradation rate of HCH isomers viz. α, β, γ, and δ-HCH. While α-HCH and γ-HCH disappeared completely from the medium within 3 days of incubation, a maximum of only 90% and 85% degradation was observed for β and δ-HCH, respectively. We have also observed that adapted cultures degraded HCH isomers more efficiently than did the normal cultures. Springer-Verlag New York Inc., 2000 Johri Atuk K. Department of Zoology, University of Delhi, Delhi 110007, India, IN aut Dua Meenakshi Department of Zoology, University of Delhi, Delhi 110007, India, IN aut Saxena D.M. Department of Zoology, University of Delhi, Delhi 110007, India, IN aut Sethunathan N. Division of Microbiology, Indian Agricultural Research Institute, Pusa, New Delhi 110012, India, IN aut https://doi.org/10.1007/s002840010140 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s002840010140 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Johri Atuk K. Department of Zoology, University of Delhi, Delhi 110007, India, IN aut NATIONALLICENCE 700 1- Dua Meenakshi Department of Zoology, University of Delhi, Delhi 110007, India, IN aut NATIONALLICENCE 700 1- Saxena D.M. Department of Zoology, University of Delhi, Delhi 110007, India, IN aut NATIONALLICENCE 700 1- Sethunathan N. Division of Microbiology, Indian Agricultural Research Institute, Pusa, New Delhi 110012, India, IN aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer