Carbohydrate metabolism in uninfected and trematode-infected snails Biomphalaria alexandrina and Bulinus truncatus (original) (raw)

Abstract

Schistosorae infection of the snails Biomphalaria alexandrina and Bulinus truncatus affected their citric acid cycle pathways; especially those concerned with succinic and cytochrome oxidases. 2. The rate of gluconeogenesis was decreased in schistosome-infected snails to 62 per cent for Bulinus truncatus and to 45 per cent for Biomphalaria alexandrina. 3. Lactic acid production was increased in schistosome-infected snails to 52 and 73 per cent that of uninfected B. alexandrina and B. truncatus respectively. 4. Schistosome infection caused a marked decrease in the glycogen content of the tissues of both snail species. 5. The effect of schistosome infection on the intermediary metabolism of both snails is discussed.

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