Biochemical characterization of the midgut serine proteases of the Egyptian cottonworm, Spodoptera littoralis (Boisduval) and their interactions with standard protease inhibitors
Serine proteolytic activities in soluble protein extracted from the larval midgut of Spodoptera littoralis were studied using specific substrates and protease inhibitors. There are significant differences in serine activities in respect to larval development. The serine activities increase with instar development, reach each maximum at third instar larvae while the lowest serine activities are observed in the fifth instar larvae. ... Read more