Regulation of Protein Metabolism and Enzyme Activities under the Influence of Ultrasound Treatment in the Muscle Cells of Silkworm, Bombyx mori.

4 Abstract: The present study was carried out to explain the effect of enhancement of protein metabolism and enzyme activities in muscle cells of the silkworm, Bombyx mori L during the fifth instar larva stage. The parameters of protein metabolism, such as the levels of soluble, total proteins and free amino acids and the activity of protease, glutamate dehydrogenase, aspartate aminotransferase and alanine aminotransferase were assayed to know the impact of ultrasound. In general ultrasound has an elevatory effect on these parameters. Changes in the levels of these biochemical constituents are correlated with the events of histogenesis and histolysis associated with the silkworm metamorphosis. Under the influence of ultrasound protein metabolism and enzyme activities are stimulated to achieve greater turnover of silk proteins, greater spinning activity and consequently greater sericultural output.