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VOL. 5, ISSUE 5 (2020)
Chromium stress management on plant growth using biosorption and bioreduction
Authors
Nilofer Nisha HM, Kavitha P
Abstract
Cr-induced stress in plants that cause severe damage of production of pigments. Effect of Chromium reduction and its toxicity on plant growth was evaluated. Soil enriched chromium treated with Cr resistant Pseudomonas fluorescence and Neurospora sp isolated from the tannery effluent contaminated site. Efficiency of live bacterial and dead fungal mat was tested under in situ pot culture method. Chromium removal was noted by UV and effluent characters were tested. The results showed that tested bacteria and fungi greatly stimulated plant growth under chromium stress followed by bacteria and fungi alone. Plant growth was moderate by bacteria and fungi independently with 1442 and 951.5 VI with 3.8 and 3.2 mg/g chlorophyll content. The concentration of Cr6+was reduced as Cr3+ and estimated as 140 mg by bacteria, 120 mg by fungi and 98 by dual culture. Though the concentration of Cr3+ is higher in bacterial the fungi absorption reduced the availability of concentration. The treated sample gave significant result on V.radiata seed germination indicates,that it’s free from chromium toxicity as Cr(VI) is reduced. This study confirms that the isolated bacteria and fungi are potent hexavalent chromium stress remover in agriculture soil and enhance the plant growth.
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Pages:452-455
How to cite this article:
Nilofer Nisha HM, Kavitha P "Chromium stress management on plant growth using biosorption and bioreduction". International Journal of Botany Studies, Vol 5, Issue 5, 2020, Pages 452-455
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