• Sakale S.S.
• Chitanand M.P.

Abstract: Hexavalent Chromium (Cr) is considered as a severe pollutant due to its non-biodegradability and thus it causes bio-accumulation resulting in phytotoxicity. In the present study, Cr resistant Chryseomicrobium amylolyticum JC16 was obtained from chromium containing electroplating effluent sample. Minimum inhibition concentration of chromium for C. amylolyticum was determined as 1300µg/ml. The reduction assay showed that this isolate was able to reduce Cr completely in 48hrs of the incubation period. Optimization study revealed that maximum chromium reduction efficiency could be achieved at temperature 30ᵒC, neutral pH and at initial Cr concentration of 100µg/ml. Further, this isolate was used for treatment for 100µg/ml Cr spiked river water. The treated effluent water was studied for the effects of Cr on plant Vigna radiata, in comparison with untreated effluent. Due to the treatment of effluent, seed germination increased up to 70% compared to only 30% in untreated effluent. The different parameters including root, shoot and seedling length were studied. The results were favorable with treated effluent than untreated. The Vigour index and Tolerance index was more in treated effluent compared with untreated effluent. Hence it was concluded that C. amylolyticum can be a tool of bioremediation against Cr phytotoxicity.

Electroplating Effluent, Reduction assay, Vigour index, Tolerance index, Vigna radiata.

"Potential Application of Chryseomicrobium amylolyticum against Phytotoxicity Due To Hexavalent Chromium.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.84-90, June 2019, Available :http://www.jetir.org/papers/JETIR1907A38.pdf

"Potential Application of Chryseomicrobium amylolyticum against Phytotoxicity Due To Hexavalent Chromium.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp84-90, June 2019, Available at : http://www.jetir.org/papers/JETIR1907A38.pdf