Effect of fenvalerate on protein and amino acid contents and enzyme activities in the ostracod Chrissia halyi

The short-term effect of fenvalerate on some metabolites and enzymes of protein metabolism in the ostracod Chrissia halyi was studied. The ostracods were subjected to two different concentrations of fenvalerate and the alterations in total proteins, total free amino acids, transaminases i.e. aspartate amino transferase (AAT)/glutamate oxaloacetate transaminase (GOT) and alanine amino transferase (ALAT)/glutamate pyruvate transaminase (GPT) and glutamate dehydrogenase (GDH) after one and three days were noted. Total protein and free amino acid contents in the organisms were found to be depleted, whereas both the transaminases and GDH levels were elevated. The results indicate that exposure of C. halyi to fenvalerate leads to metabolic adaptations to suit the functional need of the animal.