Biodegradation Of Herbicide Using Fungi Isolated From Paddy Fields Of Thanjavur District
Keywords:
Herbicides, Pollution, Fungi and BiodegradationAbstract
Herbicide use raises a number of environmental concerns. Day by day there is a increase in the use of herbicide due to labour demand. Ninety five percentage of herbicides reach a destination other than their target species, including non-target species, air, water and soil. Although they improve the quality and yield of the agricultural product but do have certain serious effect on the environment. This study focuses on development of a method to reduce the environmental burden of the herbicide by way of biodegradation. In the present study, totally twenty two fungal isolates were screened. The isolates from agricultural soils were identified as filamentous fungi belonging to two genera among the 22 species 19 species belongs to Aspergillus species and 3 species belongs to Penicillium species. Out of twenty two isolates, only two isolates Aspergillus fumigatus (90.5, 82.5%) in both concentration T1 and T2 and A. niger (87, 79%) were highly degrading the herbicide (butachlor) and form high level of biomass respectively.
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