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Regulation of Neurospora crassa nucleosidases by some environmental factors
Author(s) -
Mattoo A. K.,
Dandekar A. M.,
Trivedi J. P.,
Majmudar G. H.,
Patel D. M.
Publication year - 1979
Publication title -
zeitschrift für allgemeine mikrobiologie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0044-2208
DOI - 10.1002/jobm.19790190404
Subject(s) - neurospora crassa , neurospora , glycosidic bond , biochemistry , inosine , cleavage (geology) , enzyme , biology , phosphate , chemistry , paleontology , fracture (geology) , gene , mutant
Enzymic cleavage of N‐glycosidic bonds of AMP, GMP, and inosine by the cell‐free extracts of Neurospora crassa has been studied. The enzymic activities with these substrates appear to be discrete from one another. The levels of these enzymes in the cell vary with age, and are dependent upon the inoculum size, aeration rate, and phosphate level in the medium. Glucose (or ribose) controls the phosphate‐mediated repression of all the three nucleosidases of this fungus.