Journal of Environmental Biology

Study of carbohydrate metabolism in selected tissues of freshwater mussel, Lamellidens marginalis under copper sulphate toxicity

 

K. Satyaparameshwar¹, T. Ravinder Reddy² and N. Vijaya Kumar²

¹Department of Zoology, Lal Bahadur College, Warangal-506 007, India

²Department of Zoology, Kakatiya University, Warangal-506 009, India

 

(Received: 31 May, 2004 ; Accepted: 07 April, 2005)

 

Abstract: Sublethal toxicity of copper sulphate on carbohydrate metabolism was studied in selected tissues of freshwater mussel, Lamellidens marginalis. Levels of glycogen and pyruvic acid decreased while lactic acid showed an increase. Activities of LDH, SDH and MDH decreased while G-6-PDH activity increased. There appears to be a shift in the carbohydrate metabolism from aerobic to anaerobic type due to toxicity of copper.

 

Key words: Copper sulphate toxicity, Carbohydrate metabolism, Dehydrogenases, Glycogen.

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