ACUTE AND CHRONIC TRIBUTYLTIN INDUCED ALTERATIONS IN DIGESTIVE ENZYMES OF THE PRAWN, CARIDINA RAJADHARI
R. SAROJINI *
DEPARTMENT OF ZOOLOGY, MARATHWADA UNIVERSITY, AURANGABAD-431004, INDIA.
P. S. REDDY *
DEPARTMENT OF ZOOLOGY, MARATHWADA UNIVERSITY, AURANGABAD-431004, INDIA.
*Author to whom correspondence should be addressed.
Abstract
Effect of both lethal and sublethal concentrations of TBTO on digestive amylase, protease and lipase in hepatopancreas, stomach and midgut was studied in the prawn, Caridina rajadhari. Both the acute and chronic exposures exhibit inhibition of all the enzyme activity in all the tissues. However maximum depletion of enzyme activity was observed in prolonged exposure period and also tissue specific impact was noticed. The observed effects were due to the severe damage to the secretory cells of digestive organs or by neurotoxic effect caused by the TBTO poisoning.