Acid and alkaline phosphatase was localized histochemically in the intestinal epithelium and excretory duct respectively in fresh
frozen sections of Fasciola hepatica. Polyphenol oxidase was
localized in the vitellaria, vitelline ducts and egg-shells. The distribution
and nature of esterases was examined histochemically. Acetyl-cholinesterase
was observed in the tegument, neural ganglia,...
Some enzymes of the citric acid cycle and glycolytic pathway
in cell-free extracts of Vibrio marinus MP-1 were compared for
thermal lability. After one hour of moderate temperature exposure,
enzymes of both pathways rapidly lost catalytic activity. For all
but one enzyme, 50 percent remaining activity occurred near an
averaged...
Food habits and biology of five species of Pleocoma larvae were
studied at a dozen forested sites in western Oregon between May 1960
and December 1961.
First instar Pleocoma hatch in late summer and moult to second
instars in early fall. Second and subsequent instars moult annually
between mid-summer and...