Bioremediation of HCH-contaminated soil: elimination of inhibitory effects of the insecticide on radish and green gram seed germination

Bidlan, Rajkumar and Afsar, Mohammed and Manonmani, H. K. (2004) Bioremediation of HCH-contaminated soil: elimination of inhibitory effects of the insecticide on radish and green gram seed germination. Chemosphere, 56. pp. 803-811.

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Abstract

The effects of technical grade hexachlorocyclohexane (tech-HCH) on the germination of different seeds were tested. Two types of seeds, radish and green gram showed marked reduction in germination percentage and seeding vigour index. The abnormalities and reduction in germination increased with increasing concentration of tech-HCH. At 100 lg HCH level the germination of radish and green gram seeds was inhibited almost completely on moist filter paper and soil. Protease and amylase activities were reduced in seeds grown in soil spiked with tech-HCH. Bioremediation of HCH-spiked soils with a HCH-degrading microbial consortium helped in eliminating the toxic effects of tech-HCH towards seed germination. The degradation of 25 lg tech-HCH g1 soil was complete by 120 h. The seed germination and the activities of the assayed enzymes, amylase and protease, were same as before or better in bioremediated soils.

Item Type:	Article
Uncontrolled Keywords:	Hexachlorocyclohexane; Microbial consortium; Viability; Vigour index; Biodegradation
Subjects:	500 Natural Sciences and Mathematics > 05 Earth Sciences > 02 Soil Sciences 600 Technology > 08 Food technology > 22 Legumes-Pulses
Divisions:	Food Microbiology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	22 Jun 2007 11:14
Last Modified:	01 Oct 2018 11:13
URI:	http://ir.cftri.res.in/id/eprint/1257

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