MR 2 variety mulberry leaves were sterilized with UV light for 5, 10 and 15 minutes. These leaves were fed to PM x NB 4 D 2 hybrid silkworm Bombyx mori Linn. life stages and recorded the macromolecular contents (total protein, reducing sugar and glycogen) and digestive enzymes (amylase, invertase and protease) activities. Results revealed feeding of silkworm B. mori with UV treated mulberry lea...

Embryogenesis in the egg of the silkworm. Bombyx mori, up to 24 h after oviposition was studied by light microscopy with special reference to nuclear migration and blastoderm formation. In Bombyx eggs blastoderm cells seem to form in a mechanism different from that usually seen in many other insect species; that is, in Bombyx eggs no typical cleavage furrows were seen. Cleavage nuclei which had...