文章基本信息

标题：Functioning of Salt Tolerant Anabaena variabilis and Nostoc calcicola Strains in Salt Stress, Destructors of Hexachlorocyclohexane (HCH) in Saline Conditions
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作者：Gulchekhra Kadirova ; Kim Andreevich ; Lorenz Adrian 等
期刊名称：Environment and Natural Resources Research
印刷版ISSN：1927-0488
电子版ISSN：1927-0496
出版年度：2012
卷号：2
期号：1
页码：63
DOI：10.5539/enrr.v2n1p63
出版社：Canadian Center of Science and Education
摘要：We investigated the degradation of hexachlorocyclohexane (HCH) in soil by two cyanobacteria isolates Anabaena variabilis N 21 and Nostoc calcicola N 25 under high concentrations of NaCl. After four months of incubation cultures in saline soils with 4% NaCl decreased HCH concentrations considerably from 2 µg/g soil to 14 ng/g soil, representing 1% of the introduced HCH. In pure cultures 1 M NaCl was not lethal but significantly changed the morphology of the cyanobacteria. Enzyme assays for aldehyde oxidase and xanthine oxidase indicated the overexpression of xanthine oxidase in Nostoc calcicola N25 under salt-stress. Our results indicate that the strains can be used as biopreparations for bioremediation of salt-affected soils polluted with persistent chlororganic compounds often found in Uzbekistan soils.