Abstract
The activity of beta-glucosidase (EC 3.2.1.21) in extracts of Dictyostelium discoideum was investigated. The specific activity increased early in development, declined during pseudoplasmodium formation, and increased again during sorocarp formation. The beta-glucosidase which was present in growing amoebae and during the first stages of multicellular development was electrophoretically distinct from the enzyme which accumulated during the final stages of morphogenesis. Ribonucleic acid synthesis and protein synthesis during development were required for the accumulation of the later isozyme. Analysis of beta-glucosidase activity in a number of morphological mutants suggests that the enzyme which accumulates late in morphogenesis is developmentally controlled.
MeSH Terms
Centrifugation, Density Gradient
Chromatography, Thin Layer
Cycloheximide/pharmacology
Dactinomycin/pharmacology
Edetic Acid/pharmacology
Electrophoresis, Disc
Glucosidases/isolation & purification,metabolism
Isoenzymes
Mutation
Myxomycetes/drug effects,enzymology,growth & development
Protein Biosynthesis
RNA/biosynthesis
Chemicals
Isoenzymes
Dactinomycin
RNA
Cycloheximide
Edetic Acid
Glucosidases
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Coston M B
Loomis W F
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20 references, click to expand
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