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VOL. 11, ISSUE 2 (2026)
Plant-microbe interactive remediation of soil contaminated with Imidacloprid using Cowpea (Vigna unguiculata L. Walp) and Cowpea rhizospheric microorganism Bacillus tequilensis
Authors
Radhika S Velankar, Pradnya P Kanekar, R S Zunjarrao
Abstract
Imidacloprid, one of the most used pesticides in agriculture protect
crops from pest attacks but its high concentration in environment results in toxic
effects on aquatic life, humans, and soil ecology. Therefore, in the present
work, removal of excessive imidacloprid from soil using plants and their
associated rhizosphere microflora was studied. Isolated Cowpea rhizosphere microorganism
was inoculated in soil containing 1280 mg/kg Confidor pesticide (17.8%
imidacloprid). This soil was then used for Cowpea cultivation. Individual and combined
effects of Cowpea and Bacillus tequilensis to remove pesticide from soil
were studied. Results revealed that B. tequilensis isolated from Cowpea
rhizosphere removed 62.02% pesticide from bare soils while Cowpea and
soil native microbes were able to remove 82.45% imidacloprid from soil on the
last day of experiment. Approximately, 99% imidacloprid removal was observed from
soil due to combined activity of isolated Bacillus tequilensis, soil
microbes, and Cowpea. Effect of application of B. tequilensis culture
was observed in terms of increase in plant growth as compared to control. Plant-microbe
interactive remediation of imidacloprid contaminated soil was enhanced due to
presence of B. tequilensis, Cowpea and native flora suggesting
possible role of microbial population in the process of Phytoremediation.
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Pages:114-119
How to cite this article:
Radhika S Velankar, Pradnya P Kanekar, R S Zunjarrao "Plant-microbe interactive remediation of soil contaminated with Imidacloprid using Cowpea (<i>Vigna unguiculata</i> L. Walp) and Cowpea rhizospheric microorganism <i>Bacillus tequilensis</i>". International Journal of Botany Studies, Vol 11, Issue 2, 2026, Pages 114-119
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