Autoradiographic Observations on the Silk Glands of Bombix mori

Abstract
Glycine-1-Cl4 was administered to B. mori larvae and its incorporation in the silk glands followed autoradiographically. After 15 and 30 min the ARGs showed strong and diffuse activity in the cell cytoplasm. At 1 hr it was mainly found over the cell apex and newly formed secreted material. At 12 and 24 hours the activity was localized mainly in the material secreted into the lumen.