油蚕と正常蚕の尿酸量とキサンチン脱水素酵素作用との関系

概要

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Uric acid content and xanthine dehydrogenase activity were measured using translucent silkworms (od, oew, og, ok) and their normal segregants. The results obtained were as follows : 1. The amount of uric acid of the integument in translucent mutants was markedly less than in each normal segregant. On the contrary, faeces and haemolymph of translucent larvae contained a great amount of uric acid as compared with those of normal segregants without exception. 2. In og segregant, xanthine dehydrogenase activity of the fat body was higher in normal segregant than in translucent mutant, from the second day of the last instar to the matured stage. However, there was no clear difference in xanthine dehydrogenase activity between od and ok segregants. 3. Little or no xanthine dehydrogenase activity could be detected in the integument in all translucent and normal silkworms. 4. In view of results obtained and unpublished data as to uricase activity of the integument, it may be suggested that the great difference in the content of uric acid of the integument between translucent and normal silkworms is not resulted from the difference in the xanthine dehydrogenase activity, but is due to the difference in adsorption and reservation of uric acid in epidermal cells.
日本応用動物昆虫学会の論文
1961-09-30