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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.

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Abstract

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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Acknowledgments

M.S. acknowledges the award of University Grants Commission–Rajiv Gandhi National Fellowship (UGC-RGNF). The financial support from the Department of Biotechnology (DBT), Government of India is gratefully acknowledged (Project reference: BT/PR/11316/PBD/26/164/2008).

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Authors and Affiliations

  1. Department of Microbiology, School of Life Sciences, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India

    Muthukannan Satheesh Kumar, Ramasamy Praveenkumar, Asokraja Ilavarasi, Kamaraj Rajeshwari & Nooruddin Thajuddin

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  1. Muthukannan Satheesh Kumar
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  2. Ramasamy Praveenkumar
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  3. Asokraja Ilavarasi
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  4. Kamaraj Rajeshwari
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  5. Nooruddin Thajuddin
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Correspondence to Nooruddin Thajuddin.

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Kumar, M.S., Praveenkumar, R., Ilavarasi, A. et al. Oxidative stress response and fatty acid changes associated with bioaccumulation of chromium [Cr(VI)] by a fresh water cyanobacterium Chroococcus sp.. Biotechnol Lett 34, 247–251 (2012). https://doi.org/10.1007/s10529-011-0771-9

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  • DOI: https://doi.org/10.1007/s10529-011-0771-9

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