title: The enzymes of glycogen and trehalose catabolism from Hysterothylacium aduncum (Nematoda: Anisakidae).
abstract: The activity of alpha-amylase, glucoamylase, maltase, trehalase, glycogen phosphorylase and trehalose phosphorylase was measured in extracts from larval and adult Hysterothylacium aduncum (Rudolphi, 1802), parasitic nematode of marine fish. The content of glycogen and trehalose in the worm's body was also determined. Both the hydrolytic and phosphorolytic paths of sugar decomposition are present in H. aduncum. In the larvae glycogen was utilised mainly via the hydrolytic path. In the adults the activities of phosphorolytic enzymes were higher than in the larvae. In both stages the activity of trehalose phosphorylase is present. In adult nematodes it is uncommonly high. The dominating sugars in the adults were glucose and glycogen, while in the larvae it was trehalose.
authors.affiliation: Department of Biochemistry, Faculty of Biology, University of Warmia and Mazury, Olsztyn, Poland. zlotow@matman.uwm.edu.pl
authors.forename: Krystyna
authors.initials: K
authors.lastname: Zółtowska
authors.forename: Elzbieta
authors.initials: E
authors.lastname: Lopieńska
authors.forename: Jerzy
authors.initials: J
authors.lastname: Rokicki
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Dmitryjuk
mesh_terms: D000818:Animals; D005399:Fishes / Q000469:parasitology; D005087:Glucan 1,4-alpha-Glucosidase / Q000378:metabolism; D005964:Glucosyltransferases / Q000378:metabolism; D006003:Glycogen / Q000378:metabolism*; D024981:Glycogen Phosphorylase / Q000378:metabolism; D009348:Nematoda / Q000201:enzymology* / Q000378:metabolism; D011044:Poland; D014198:Trehalase / Q000378:metabolism; D014199:Trehalose / Q000378:metabolism*; D000516:alpha-Amylases / Q000378:metabolism; D000520:alpha-Glucosidases / Q000378:metabolism
chemical_list: D006003:Glycogen; D014199:Trehalose; D005964:Glucosyltransferases; D024981:Glycogen Phosphorylase; C023181:alpha,alpha-trehalose phosphorylase; D000516:alpha-Amylases; D000520:alpha-Glucosidases; D014198:Trehalase; D005087:Glucan 1,4-alpha-Glucosidase