Recovery of dehydrogenase enzymes activities Heteropneustes fossilis (Bloch) exposed to sublethal levels of mercury


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Authors

  • R James Department of Zoology, V.O. Chidambaram College, Tuticorin - 628 008, India
  • K Sampath Department of Zoology, V.O. Chidambaram College, Tuticorin - 628 008, India
  • G Devakiamma Department of Zoology, V.O. Chidambaram College, Tuticorin - 628 008, India
  • V Jancy Pattu Department of Zoology, V.O. Chidambaram College, Tuticorin - 628 008, India

Abstract

The impact of sublethal levels of mercury on the activities of succinate
dehydrogenase (SDH) and Glyceroldehyde dehydrogenase (GDH) enzymes in
different tiBsues of Heterapneustes tassilis were studied. Recovery of enzyme
activities were also assessed. Sublethal concentrations of mercury inhibited
the SDH activity and enhanced the GDH activity in all tested tissues; the
inhibition and enhancement were concentration dependent. This suggests the
suppression of oxidative metabolism and triggering of anaerobic metabolism
to derive energy during metal stress. Metal exposed animals when shifted to
metal impoverished water, showed recovery in the activity of both enzymes,
however, it was not complete.

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Author Biographies

  • R James, Department of Zoology, V.O. Chidambaram College, Tuticorin - 628 008, India
    Department of Zoology, V.O. Chidambaram College, Tuticorin - 628 008, India
  • K Sampath, Department of Zoology, V.O. Chidambaram College, Tuticorin - 628 008, India
    Department of Zoology, V.O. Chidambaram College, Tuticorin - 628 008, India
  • G Devakiamma, Department of Zoology, V.O. Chidambaram College, Tuticorin - 628 008, India
    Department of Zoology, V.O. Chidambaram College, Tuticorin - 628 008, India
  • V Jancy Pattu, Department of Zoology, V.O. Chidambaram College, Tuticorin - 628 008, India
    Department of Zoology, V.O. Chidambaram College, Tuticorin - 628 008, India

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Issue

Vol. 43 No. 3 (1996)

Section

Note

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How to Cite

James, R., Sampath, K., Devakiamma, G., & Pattu, V. J. (2011). Recovery of dehydrogenase enzymes activities Heteropneustes fossilis (Bloch) exposed to sublethal levels of mercury. Indian Journal of Fisheries, 43(3), 293-297. http://epubs.icar.org.in/index.php/IJF/article/view/10141