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Oxidative stress response and fatty acid changes associated with bioaccumulation of chromium [Cr(VI)] by a fresh water cyanobacterium Chroococcus sp
Journal article   Peer reviewed

Oxidative stress response and fatty acid changes associated with bioaccumulation of chromium [Cr(VI)] by a fresh water cyanobacterium Chroococcus sp

Muthukannan Satheesh Kumar, Ramasamy Praveenkumar, Asokraja Ilavarasi, Kamaraj Rajeshwari and Nooruddin Thajuddin
Biotechnology letters, Vol.34(2), pp.247-251
01/02/2012
DOI: https://doi.org/10.1007/s10529-011-0771-9
PMID: 22002251

Abstract

Catalase - metabolism Chromium - toxicity Cyanobacteria - drug effects Cyanobacteria - enzymology Cyanobacteria - metabolism Fatty Acids - metabolism Fresh Water - microbiology Oxidative Stress Superoxide Dismutase - metabolism
Cr(VI) at 2.5, 5, 7.5 and 10 mg/l was removed over 1-5 days by a freshwater cyanobacterium, Chroococcus sp. 2.5 mg Cr(VI)/l gave the optimum rate. With 5 mg Cr(VI)/l, activities of superoxide dismutase and catalase were increased. Amounts of palmitic (16:0), stearic (18:0) and oleic acid (18:1) in the cell also increased after exposure to Cr(VI).

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