Metamorphosis–Triggered Trans–Deamination of Amino Acids in the Silkworm, Bombyx mori

A.Hemalatha; E. Bhuvanewari; S. Sivaprasad; K.Yellamma

Volume : IV, Issue : XI, November - 2014

Metamorphosis–Triggered Trans–Deamination of Amino Acids in the Silkworm, Bombyx mori

A. Hemalatha, E. Bhuvanewari, S. Sivaprasad, K. Yellamma

Abstract :

The biochemical process of trans–deamination has been studied during pupal–adult metamorphosis in Bombyx mori with reference to the levels of free amino acids (FAA) and activity levels of aspartate amino transferase (AAT), alanine amino transferase (AlAT) and glutamate dehydrogenase (GDH). The activity levels of AAT, AlAT and GDH in the fat body and haemolymph and the transamination process thereof, appears to be on a raising path in the first half of pupal life and on a declining path in its second half, but raises again during pupal–adult transition. The FAA levels sink and sail with those of the three enzyme activities examined in the present investigation, but notably on a low magnitude. The overall growth trends in the biochemical parameters indicate that trans–deamination process meets the energy demands of metabolism and reproduction and powers the pupal–adult metamorphosis in B. mori, in tissue–specific and gender–specific manner.