Phospholipid Variations in Mutant Strains of Neurospora crassa

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Phospholipid Variations in Mutant Strains of Neurospora Crassa.

The present studies were undertaken to determine the extent to which the phospholipid composition of Neurosporn crama can be altered by mutations studied in conjunction with controlled supplementation. Previous work in this laboratory has shown that a mutation involving an enzyme concerned with lecithin synthesis can result in a lecithin-deficient strain (1, 2). The methylation of phosphatidyle...

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Neurospora crassa mutant impaired in glutamine regulation.

The final products of the catabolism of arginine that can be utilized as nitrogen sources by Neurospora crassa are ammonium, glutamic acid, and glutamine. Of these compounds, only glutamine represses arginase and glutamine synthetase. We report here the isolation and characterization of a mutant of N. crassa whose arginase, glutamine synthetase, and amino acid accumulations are resistant to glu...

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Cysteine Mutant Strains of Neurospora'

UTANT strains of Neurospora crassa that are unable to utilize inorganic sulfur, but which are capable of growth on minimal medium supplemented with either cysteine or methionine, are obtained readily. It is surprising, therefore, that little genetic information has been available for cysteine mutants of Neurospora, other than those located in linkage group VI (STADLER 1956a,b, 1959a,b; STADLER ...

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Histidine uptake in strains of Neurospora crassa with normal and mutant transport systems.

Kinetic parameters for three systems of active histidine uptake by germinated conidia of Neurospora crassa have been measured. Each system appears to follow typical Michaelis-Menten kinetics when studied separately from the other systems. Under the conditions studied, the general amino acid transport system was found to account for the major portion of histidine uptake from low concentrations. ...

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Asexual development is increased in Neurospora crassa cat-3-null mutant strains.

We use asexual development of Neurospora crassa as a model system with which to determine the causes of cell differentiation. Air exposure of a mycelial mat induces hyphal adhesion, and adherent hyphae grow aerial hyphae that, in turn, form conidia. Previous work indicated the development of a hyperoxidant state at the start of these morphogenetic transitions and a large increase in catalase ac...

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ژورنال

عنوان ژورنال: Journal of Biological Chemistry

سال: 1964

ISSN: 0021-9258

DOI: 10.1016/s0021-9258(18)91248-2