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[immunoelectrophoretic analysis and characterization of enzymatic activities in antigenic extracts of aspergillus flavus. reflection on the differential diagnosis of human aspergillosis]. 19715002652
effect of hydrogen-ion concentration on osmotic-tolerance of alkaline and fertile soil aspergilli. 19715005821
another two genes controlling mitotic intragenic recombination and recovery from uv damage in aspergillus nidulans. i. uv sensitivity, complementation and location of six mutants. 19715087427
macromolecular composition and nuclear division during spore germination in aspergillus nidulans. 19715093416
the highly polarized recombination pattern within the metha gene of aspergillus nidulans. recombination within the metha cistron of a. nidulans. 19715095611
aspergillus nidulans: association of certain alkaline phosphatase mutations with decreased virulence for mice. 19715111886
further data on the polarity of the pabai locus of aspergillus nidulans. 19715112154
purification and properties of arylsulphatase of aspergillus nidulans. 19715121606
activity and regulation of an acidic amino acid permease of aspergillus nidulans. 19715131004
the differential effects of nystatin on growth of auxotrophic and prototrophic strains of aspergillus nidulans. 19715137677
mutational resistance to fungitoxic benzimidazole derivatives in aspergillus nidulans. 19715137679
heterokaryon incompatibility and variation in wild populations of aspergillus nidulans. 19665226960
a reciprocal phenotypic instability affecting development in aspergillus nidulans. 19665230323
the relationship between sexual outcrossing and heterokaryon incompatibility in aspergillus nidulans. 19685250125
non-allelic interactions and genetic isolation in wild populations of aspergillus nidulans. 19695262865
the radiation sensitivity of a cytoplasmic mutant of aspergillus nidulans. 19665297427
the interaction between ultra-violet and gamma irradiation in aspergillus nidulans. 19665297652
the formation of udp-glucose and udp-galactose in wild type and mutants of aspergillus nidulans. 19695346712
evidence against necessary phosphorylation during hexose transport in aspergillus nidulans.the transport of 2-deoxy-d-glucose, a nonmetabolizable glucose analogue, into aspergillus nidulans against a concentration gradient does not appear to require phosphorylation, despite the high levels of sugar phosphates accumulated rapidly within the cell. two other deoxy analogues of d-glucose, 6-deoxy-d-glucose and 1,5-anhydro-d-glucitol (1-deoxy-d-glucose), although they lack the c-6 and the c-1 hydroxyl groups, respectively, and thus cannot be phosphorylated in those positions, still competi ...19695361211
effects of lysine on arginine uptake and metabolism in aspergillus nidulans. 19695364466
a system generating spontaneous intrachromosomal changes at mitosis in aspergillus nidulans. 19695364959
specificity for spontaneous and induced forward mutation at several gene loci in aspergillus nidulans. 19695366006
effects of liquid holding on the induction of mutations in an ultraviolet-sensitive strain of aspergillus nidulans. 19695366007
a mutational analysis of conidial development in aspergillus nidulans. 19695366214
mitotic non-conformity in aspergillus nidulans: the production of hypodiploid and hypohaploid nuclei. 19695367366
methionine suppressors in aspergillus nidulans: their genetics and behaviour in heterokaryons and diploids. 19695367377
surface characteristics of conidia from monosporous cultures of penicillium digitatum and aspergillus nidulans var. echinulatus. 19695369330
spontaneous and induced reversion of icr-170-induced xanthine dehydrogenase mutants of aspergillus nidulans. 19695370743
genetic control of the uptake of amino acids in aspergillus nidulans. 19695384482
effects of ultraviolet irradiation on heterozygous diploids of aspergillus nidulans. i. uv-induced mitotic crossing over. 19695384483
[comparison of the mutagenic effect of chemically similar bifunctional nitrogen mustard gases on aspergillus nidulans]. 19695397319
effects of ultraviolet irradiation on heterozygous diploids of aspergillus nidulans. ii. recovery from uv-induced mutation in mitotic recombinant sectors. 19695399400
[nidulotoxin: the toxin of aspergillus nidulans wint]. 19705412300
enzyme lesions in galactose non-utilising mutants of aspergillus nidulans. 19705418725
effect of ammonium ions on the growth of aspergillus nidulans. 19705424325
ultraviolet-light sensitive mutants of aspergillus nidulans. 19705424722
induction and repression of amidase enzymes in aspergillus nidulans.aspergillus nidulans can grow on acetamide as both a carbon and nitrogen source and can also grow on formamide as a nitrogen source. two distinct enzymes, an acetamidase and a formamidase, are produced. the control of the synthesis of these two enzymes in a wild-type strain was investigated. the formamidase is induced by acetamide and formamide and repressed by ammonia. the acetamidase is induced by formamide and acetamide, repressed by carbon metabolites derived from glucose and acetate, and re ...19705432013
survival of uvsb and uvsc mutants of aspergillus nidulans after uv-irradiation. 19705433765
abnormal frequencies of spontaneous mitotic recombination in uvsb and uvsc mutants of aspergillus nidulans. 19705433766
trypan blue-induced deletions in duplication strains of aspergillus nidulans. 19705437520
molybdate metabolism in aspergillus nidulans. i. mutations affecting nitrate reductase and-or xanthine dehydrogenase. 19705475567
the genetic analysis of regulation of amidase synthesis in aspergillus nidulans. i. mutants able to utilize acrylamide. 19705475570
extracellular 2-acetamido-2-deoxy-d-galacto-d-galactan from aspergillus nidulans. 19705480165
competition between leucine and phenylalanine and its relation to p-fluorophenylalanine resistant mutations in aspergillus nidulans. 19705482258
the utilisation of galactose by an aspergillus nidulans mutant lacking galactose phosphate-udp glucose transferase and its relation to cell wall synthesis. 19705486494
synchronous nuclear division and septation in aspergillus nidulans. 19705488461
contrasting complementation patterns in aspergillus nidulans. 19705488983
the frequency of reverse mutation at the xdh loci of aspergillus nidulans. 19705489968
the effect of co2 on the purine requirement of aspergillus nidulans ad 3 mutants. 19705490263
regulation of lactose utilization in aspergillus nidulans. 19705495366
a study of aspects of heterokaryosis in aspergillus nidulans. 19705497573
chemical composition of wild-type and mutant aspergillus nidulans cell walls. the nature of polysaccharide and melanin constituents. 19705500028
control of ornithine-transcarbamylase formation in aspergillus nidulans. 19705501940
genetic investigation of tryptophan-requiring mutants of aspergillus nidulans. 19705502333
a mutation in aspergillus nidulans producing hyphal walls which lack chitin. 19705506575
a new class of slow-growing non-perithecial mutants of aspergillus nidulans. 19705512254
a variegated position effect in aspergillus nidulans. 19705512256
recombination and transcription in the hisb and paba1 loci of aspergillus nidulans. 19705512357
genetic and morphological properties of undifferentiated and invasive variants of aspergillus nidulans. 19705512361
[the mutagenic effect of alkylureides of diethylene imidophosphoric acid on aspergillus nidulans]. 19705517354
[the mutagenic effect of several alkylating substances on aspergillus nidulans]. 19705517360
methionine-sensitive leucine-requiring mutants of aspergillus nidulans. 19705518439
a comparison of nucleotide sequences from mitochondrial and cytoplasmic ribosomal rna of aspergillus nidulans. 19715551626
another two genes controlling mitotic intragenic recombination and recovery from uv damage in aspergillus nidulans. ii. recombination behaviour and x-ray-sensitivity of uvsd and uvse mutants. 19715559679
[mutagenic effect of ethyleneimine derivatives of pyrimidine on aspergillus nidulans]. 19715562879
sorbose resistant mutants of aspergillus nidulans. 19715564468
ultrastructure of aspergillus nidulans conidia and conidial lomasomes. 19715578692
the genetic control of xanthine dehydrogenase and urate oxidase synthess in aspergillus nidulans. 19675583651
gene-enzyme relationships in histidine biosynthesis in aspergillus nidulans. 19675583728
on the mechanism of mitotic recombination in aspergillus nidulans. i. intragenic recombination and dna replication. 19675584173
on the mechanism of mitotic recombination in aspergillus nidulans. ii. simultaneous recombination within two closely linked cistrons. 19675584174
a vegetative insatability in aspergillus nidulans. 19675586877
aromatic amino acid biosynthesis and para-fluorophenylalanine resistance in aspergillus nidulans. 19675587942
isolation from aspergillus nidulans, of a protein catalyzing the reduction of sulfite by reduced viologen dyes. 19675589532
mechanism of choline o-sulphate utilization in fungi.1. the position of the enzyme blocks in a number of parathiotrophic mutants of aspergillus nidulans a 69 and mutants a and c of a biotinless mutant of aspergillus nidulans were examined by nutritional and heterokaryosis experiments and by assay in vitro of enzyme systems and specific enzymes. 2. the mutants were in five groups: a and c blocked at sulphate transport; gamma at atp sulphurylase; iota at adenosine 5'-sulphatophosphate kinase; eta at the adenosine 3'-phosphate 5'-sulphatophosphate re ...19685637353
regulation of choline sulphatase synthesis and activity in aspergillus nidulans.1. choline o-sulphate is taken up from the growth medium to the same extent by sulphur-deficient and sulphur-sufficient mycelia of aspergillus nidulans, but hydrolysis of the transported sulphate ester in vivo only occurs in the sulphur-deficient mycelia. 2. choline sulphatase activity could not be detected in vitro in sulphur-sufficient mycelia of wild-type and sulphur mutants of a. nidulans, but after sulphur starvation all strains showed appreciable activity of this enzyme. 3. optimum activit ...19685637354
purification and characterization of phosphatase i from aspergillus nidulans. 19685656385
genetic fine structure and polarized negative inteference at the lys-51(fl) locus of aspergillus nidulans. 19685658755
regulation of sugar utilization by aspergillus nidulans. 19685660115
[aspergillosis of the lung caused by aspergillus nidulans (eidam) wint]. 19685660496
a radiation-sensitive mutant of aspergillus nidulans. 19685660770
quantitative intrachromosomal changes arising at mitosis in aspergillus nidulans. 19685664384
isolation of strains with increased penicillin yield after hybridization in aspergillus nidulans. 19685665723
regulation and timing of deoxyribonucleic acid synthesis in hyphae of aspergillus nidulans.pulse labeling of deoxyribonucleic acid (dna) and radioautography have been used to study the effect of growth rate on nuclear replication in aspergillus nidulans. when conidia were germinated in media supporting a fast growth rate, the radioactive pulse labeled either all of the nuclei in a cell or none of them. at slower growth rates, hyphae contained both labeled and unlabeled nuclei. altering the growth rate thus changed nuclear replication from simultaneous to sequential. the time taken to ...19685669900
genetic analysis of the first steps of sulphate metabolism in aspergillus nidulans. 19685671427
induced mutation in uv-sensitive mutants of aspergillus nidulans and neurospora crassa. 19685672966
glucose metabolism in aspergillus nidulans. 19685677993
the induction and repression of the enzymes of purine breakdown in aspergillus nidulans. 19685680610
evidence for an alternative pathway of xanthine oxidation in aspergillus nidulans. 19685680611
metabolic changes in biotin-deficient aspergillus nidulans. 19685684683
the nature of mitotic intragenic recombination in aspergillus nidulans. 19685685164
nonrandom sister chromatid segregation and nuclear migration in hyphae of aspergillus nidulans.radioactive conidiospores of aspergillus nidulans were prepared by growing a purine-requiring mutant with tritiated adenine. when these spores germinated in a nonradioactive medium, the dispersion of the original chromosome set could be followed by treating the hyphae with ribonuclease and preparing radioautograms. germinating spores with four or eight nuclei contained two highly labeled nuclei and two or six nuclei with much less or no radioactivity. successive mitotic divisions thus distribute ...19685685997
[recent contribution to the study of mycetoma in senegal. neotestudina rosatii. pyrenochaeta romeroi. aspergillus nidulans]. 19685713774
influence of chromosomal aberrations on meiotic and mitotic nondisjunction in aspergillus nidulans. 19685732416
sexual and asexual phases of aspergillus nidulans in an egret. 19685750671
[aspergillus nidulans, agent of mycetoma]. 19685756586
cell volume per nucleus in haploid and diploid strains of aspergillus nidulans. 19695764740
mutants of the arginine-proline pathway in aspergillus nidulans. 19695764741
autoregulation of the synthesis of nitrate reductase in aspergillus nidulans.in aspergillus nidulans, the syntheses of nitrate and nitrite reductases are induced by nitrate, and are repressed by ammonium. it is possible in wild-type strains to overcome partially the repressive effect of ammonium, by the addition of high concentrations of nitrate to the growth medium. mutations which lead to the production of abnormal nitrate reductase affect in addition the control of the synthesis of the nitrate-metabolizing enzymes, which in these strains are produced constitutively. t ...19695776531
methylammonium 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 repression or inhibition (or both) is relieved in these mutants in pathways of nitrate assimilation, pur ...19695788705
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