Co-Authors:
Svoboda, J.A., Insect Physiology Laboratory Agricultural Research Service, USDA, Beltsville, 20705, Maryland, United States
Thompson, M.J., Insect Physiology Laboratory Agricultural Research Service, USDA, Beltsville, 20705, Maryland, United States
Robbins, W.E., Insect Physiology Laboratory Agricultural Research Service, USDA, Beltsville, 20705, Maryland, United States
Abstract:
24-Methylenecholesterol was positively identified as an intermediate in the dealkylation and the conversion of campesterol to cholesterol in the tobacco hornworm, Manduca sexta (L.). Biochemical and nutritional studies with3H-labeled campesterol and 24-methyl-enecholesterol indicated that the conversion of campesterol to cholesterol in this insect includes the following metabolic sequence: campesterol, 24-methylene-cholesterol, desmosterol, cholesterol. © 1972 American Oil Chemists' Society.