Abstract
Glycogen phosphorylase was assayed in homogenates of pharate adults of the stable fly, Stomoxys calcitrans, by the release of inorganic phosphorous (Pi) from glucose-1-phosphate (G-1-P) in the presence of glycogen. Activity was determined as active and total phosphorylase present by the absence or presence of adenosine-5-monophosphate (AMP) in homogenates. Homogenates of the pharate adults (that were treated topically immediately after larval-pupal apolysis with a synthetic insect juvenile hormone analogue, ( E)-4-[(6,7-epoxy-3-ethyl-7-methyl-2-nonenyl)oxy]-1,2-(methylenedioxy)benzene) displayed no inhibition or enhancement of phosphorylase activity when compared to untreated pharate adults.
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