Qualitative and quantitative changes in beta-1,4-glucosidase accompanying growth of Aspergillus nidulans

Journal of Basic Microbiology
S SharmaD K Sandhu

Abstract

A comparative study of the wild type A. nidulans and a mutant strain aco-T69 (lacking conidia and cleistothecia) revealed the better production of beta-1,4-glucosidase in the former. The relative distribution of the enzyme levels in various morphological structures viz. somatic hyphae, spores and cleistothecia also showed a variation. Highest specific activity was found in the cleistothecial extracts. The electrophoretic analysis of the wild type strain demonstrated the presence of three isoenzymes of beta-1,4-glucosidase i.e. beta-GLU I, beta-GLU II and beta-GLU III, the number of which varies from one to three during the growth of the organism. The parallel study of the mutant strain showed complete absence of beta-GLU II. All three forms were present in the somatic hyphae and cleistothecial extracts while spore extracts depicted the absence of beta-GLU III in the wild type.

References

Apr 1, 1989·Genome Génome / Conseil National De Recherches Canada·P S BaggaD K Sandhu
Sep 1, 1973·Developmental Biology·D E AxelrodM Pastushok
Dec 1, 1971·Journal of General Microbiology·M A Hulme, D W Stranks
Dec 28, 1964·Annals of the New York Academy of Sciences·B J DAVIS

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