Mutational Resistance to Fungitoxic Benzimidazole Derivatives in Aspergillus nidulans
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چکیده
منابع مشابه
Resistance to various inhibitors in Aspergillus nidulans.
Resistant strains of Aspergillus nidulans were obtained by one-step selection on high concentrations of various inhibitors; each strain was mutant in a different gene conferring resistance to actidione (Act), p-fluorophenylalanine (p f ) , teoquil ( te) , iodoacetate (Iod) or malachite green (mg). Some mutant alleles have been firmly, others tentatively, located. For comparative purposes attemp...
متن کاملMethylammonium resistance in Aspergillus nidulans.
Mutants of Aspergillus nidulans resistant to methylammonium toxicity are simultaneously derepressed in the presence of ammonium for apparently all ammonium-repressible activities. Enzyme assays directly demonstrate derepression of nitrate, nitrite, and hydroxylamine reductases, xanthine dehydrogenase, urate oxidase, and allantoinase, whereas in vivo tests show that ammonium and methylammonium r...
متن کاملA mutational analysis of conidial development in Aspergillus nidulans.
NDIVIDUAL morphological mutants have been studied in many higher organ' isms such as Drosophila (HADORN 1955) and the mouse (GRUNEBERG 1952), but a rigorous mutational analysis of the type employed on many biochemical pathways is readily carried out only in microorganisms. The most remarkable study of this type is the work on bacteriophage T4 (EPSTEIN et al. 1963) in which the whole of the deve...
متن کاملAspergillus nidulans
Light-dependent conidiation in the filamentous ascomycete, Aspergillus nidulans, is contingent on the allelic state of the velvet (veA) gene. Light dependence is abolished by a mutation in this gene (veAl) , which allows conidiation to occur in the absence of light. We have isolated and characterized six extragenic suppressors of veAl that restore the light-dependent conidiation phenotype. Alle...
متن کاملMitosis in Aspergillus nidulans.
Mitosis in growing hyphae of haploid and diploid Aspergillus nidulans has been studied with the light microscope in Helly-fixed preparations. At the periphery of the nucleus a sharply defined granule is invariably found which has strong affinity for acid fuchsin. Mitosis begins with the duplication of this granule and the development inside the nucleus of a gradually lengthening fibre between t...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1971
ISSN: 0022-1287
DOI: 10.1099/00221287-67-3-371