Acriflavine-resistant Mutants of Aspergillus nidulans
نویسندگان
چکیده
منابع مشابه
Enhancers of conidiation mutants in Aspergillus nidulans.
Mutants at a number of loci, designated sthenyo, have been isolated as enhancers of the oligoconidial mutations at the medA locus. Two loci have been mapped: sthA on linkage group I, and sthB on linkage group V. Two probable alleles have been identified at each locus but two further mutants were unlinked to either sthA or sthB. Neither sthA nor sthB mutants have conspicuous effects on morpholog...
متن کاملIsolating Auxotrophic Mutants in Aspergillus nidulans
A method for the selection of auxotrophic mutants in Aspergillus nidulans using N-glycosyl-polifungin has been developed. The method results in about 9000fold enrichment. All types of auxotrophs were obtained. Under certain conditions preferential selection of nucleic acid hydrolysate-requiring auxotrophs was observed. The frequency of occurrence of these mutants was about 50 % of all colonies ...
متن کاملIdentification and characterization of Aspergillus nidulans mutants defective in cytokinesis.
Filamentous fungi undergo cytokinesis by forming crosswalls termed septa. Here, we describe the genetic and physiological controls governing septation in Aspergillus nidulans. Germinating conidia do not form septa until the completion of their third nuclear division. The first septum is invariantly positioned at the basal end of the germ tube. Block-and-release experiments of nuclear division w...
متن کاملS-phase, G2, and nuclear division mutants of Aspergillus nidulans.
Twenty-two temperature-sensitive cell cycle mutants of the fungus Aspergillus nidulans, which block in interphase at restrictive temperature, were analyzed by the reciprocal shift method of Jarvik and Botstein (Proc. Nath Acad. Sci. U.S.A. 70:2046-2050, 1973) and Hereford and Hartwell (J. Mol. Biol. 84:445-461, 1974) to determine whether these mutations were blocked at the G1, S, or G2 phase of...
متن کاملA quantitative survey of conidiation mutants in Aspergillus nidulans.
A quantitative survey has been made of conidiation mutants in Aspergillus nidulans. Conidiation mutants were 6 to I 3 times more numerous than auxotrophic mutants, but growth tests showed that the mutant defect in 85 % of the conidiation mutants was not confined to conidiation. The number of loci specifically involved in conidiation was estimated to be 45 to 150. Mutants were classified accordi...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1957
ISSN: 0022-1287
DOI: 10.1099/00221287-16-3-660