Aerobic glucose metabolism in the digestive gland of Littorina saxatilis rudis (Maton) and in the daughter sporocysts of Microphallus similis (Jäg.).

Experiments, some in vitro and some in vivo, with glucose-U-14C, acetate-U-14C, succinate-1,4-14C, pyruvate-U-14C and citrate-1,5-14C indicate that the digestive gland of Littorina saxatilis rudis and the daughter sporocysts of Microphallus similis aerobically catabolise glucose via an EMP pathway, a TCA cycle, phosphoenolpyruvate carboxylation and malate decarboxylation. The host and parasite have similar transamination and synthetic reactions and alanine as a major carbohydrate excretory product. Oxidative metabolism appears to be less efficient in the parasite than in the host.