ESTERASE ISOZYMES OF DROSOPHILA VIRILIS: DEVELOPMENTAL ASPECTS OF THE α- AND β-ESTERASES AND THEIR DISTRIBUTION IN THE BODY PARTS
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Changes during development and tissue or organ specificities of α- and β-esterase zymograms of D. virilis were studied by thin layer agar gel electrophoresis. Quantitative changes in α- or β-esterase activities were also examined through the period from first instar larvae up to about the two-week old flies.Both analyses indicated that the activity of α- and β-esterases was high in early third instar larvae and adult flies, remaining at low levels during the period around pupation, although slight differences in developmental profiles were found between α- and β-esterases. No specific bands were noticed in any particular developmental stage.Localization among various body parts was not the same for α- and β-esterases. Both esterases appeared in hemolymph as well as in whole fly homogenate. But in the homogenate of gut only α-esterase bands were found and, in contrast, only β-esterases were detected in the zymogram of head homogenate.
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- ESTERASE ISOZYMES OF DROSOPHILA VIRILIS: IMMUNOLOGICAL STUDY OF THE α- AND β-ESTERASES
- ESTERASE ISOZYMES OF DROSOPHILA VIRILIS: DEVELOPMENTAL ASPECTS OF THE α- AND β-ESTERASES AND THEIR DISTRIBUTION IN THE BODY PARTS