Pollution Research Paper

Vol 38, Issue 3, 2019; Page No.( 678-687 )

EFFICACY OF MYROIDES ODORATIMIMUS SKS05-GRD IN BIOREMEDIATION OF CHROMIUM

SARANYA ASOKAN, JAYAPRABHA C., ARYA R KRISHNA, SWATHYKRISHNA J., TRISHA MARY P.A, ASWINI A., JAGADESHWARI A.S., SONIA S., SREEBALA G. AND SUGANTHI RAMASAMY

Abstract

Prokaryotes are identified to emerge with various features of their natural character, biodegradability and controlled production of pigments that make them potential alternative candidates to various applications. Utilization of chromium (Cr) reducing microbes such as Myroides, Streptomyces and Staphylococcus and their products has enhanced the efficiency of the process of detoxification of Cr (VI) to Cr (III). Myroides odoratimimus SKS05 GRD, isolated from chicken sources, was identified as a Gram-negative, non-pathogenic bacillus belonging to the family of Cytophaga - Flavobacterium - Bacteroides. In this study Myroides odoratimimus SKS05- GRD was targeted for bioremediation of chromium. Resistance to chromium was determined by agar and broth dilution assays followed by determination of minimal inhibitory concentration. Results by atomic absorption spectroscopy, Fourier transform infrared spectroscopic analysis and scanning electron microscopy revealed effective biosorption of chromium by Myroides odoratimimus SKS05 GRD with no intracellular changes morphologically indicating the stability of the organism in the presence of chromium.

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