Showing papers by "Bareilly College published in 1957"

Carbohydrate metabolism in trematode parasites.

Abstract: 1. Introduct ion Following the classical exper iments of W:EI~LA:ND (1901, 1904) on the metabol ism of he lmin th parasites, considerable work has been done on this subject in recent years. The accumula ted l i terature, an indirect measure of the interes t shown by world workers ill this b ranch of science, has been reviewed by McCoY (1935), vo~ B~A~D (1938), YON BRAXD and JAHN (1942), SMrTH (1947), HOBSO~ (1948), BVEDING (1949), and vo~ B~AND (1952). While the metabolic behaviour of cestodes and nematodes has received considerable a t tent ion , l i t t le work appears to have been done on the metabol isnl of t rematodes ; and whatever has been done relates to the metabolic behaviour of Fasciola hepatica, probably due to its larger size. In F. hepatica, FLUtCY and LEEB (1926) found 3.1 parts of glycogen per 100 parts of fresh weight of tissue or 15 par ts of glycogen per 100 parts of d ry weight of tissue, while WEI~LA~D and vo~ BRA~D (1926) in the same species found 3.7% ot glycogen on f. w. basis or 21% of glycogen on d. w. basis. I n anothel t rematode Schistosoma mansoni, BUEDI:NG and KOLETSKY (1950) estimated 14 to 29% of glycogen of the d ry ma t t e r in the males and 3 to 5% of t ha t in females. They also concluded tha t the glycogen content of the older males was greater t han in the younger specimens. The present paper deals with the studies conducted on the carbohydrate metabol ism of two t rematodes namely, Paramphistomum explanatum and Gastrothylax crumeni/er.