TitleAbstractYear(sorted descending)
the stoicheiometry of electron transfer by bacterial and plant ferredoxins.1. the number of electrons carried by ferredoxins from spinach, the blue-green alga anacystis nidulans, the anaerobic bacterium clostridium welchii and the photosynthetic bacterium chromatium was determined. 2. ferredoxins were reduced by illuminated chloroplasts, and the stoicheiometry of the reoxidation in the dark of the ferredoxins by nadp and benzyl viologen was measured. 3. spinach and a. nidulans ferredoxins were found to be one-electron carriers, and cl. welchii and chromatium ferredoxin ...19684387387
penicillin production and its mode of inheritance in aspergillus nidulans. 19684973904
methionine loci and their suppressors in aspergillus nidulans. 19684885981
karyokinesis of the somatic nucleus of aspergillus nidulans. ii. nuclear events during hyphal differentiation. 19684180480
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
the relationship between sexual outcrossing and heterokaryon incompatibility in aspergillus nidulans. 19685250125
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
use of analogues and the substrate-sensitivity of mutants in analysis of purine uptake and breakdown in aspergillus nidulans.aspergillus mutants resistant to various purine analogues (purine, 8-azaguanine, 2-thioxanthine, and 2-thiouric acid) are defective in at least one step of purine uptake or breakdown. the properties of these mutants show that there are two uptake systems for purines, one which mediates the uptake of hypoxanthine, guanine, and adenine, and the other, xanthine and uric acid. allantoinase-less strains are sensitive to the toxic effects of allantoin accumulation. they are severely inhibited when gro ...19676025432
complementation analysis of the tryptophan pathway in aspergillus nidulans. 19676029969
enzyme analysis of the tryptophan pathway in aspergillus nidulans. 19676029970
purification of two alkaline phosphatases from aspergillus nidulans. 19676030350
the mechanism of action of proline suppressors in aspergillus nidulans. 19676034041
genetic and cytoplasmic control of undifferentiated growth in aspergillus nidulans. 19676034180
inhibition of the lysis of fungi by melanins.evidence is presented that the resistance of aspergillus nidulans hyphae to lysis by a beta-(1-->3) glucanase-chitinase mixture results from the presence of melanin in the fungal walls. the resistance of the walls to digestion was directly correlated with the melanin content of the mycelium. a melanin-less mutant of a. nidulans was highly susceptible to hydrolysis by the enzyme mixture. preincubation of a synthetic melanin with the glucanase, chitinase, and a protease, before addition of the sub ...19676035264
kinetic studies of the induction of nitrate reductase and cytochrome c reductase in the fungus aspergillus an earlier paper (cove, 1966) it was reported that the kinetics of appearance of nitrate reductase (nadph-nitrate oxidoreductase, ec on the addition of nitrate to a growing culture of aspergillus nidulans were different in certain respects from those found for many escherichia coli enzymes. when urea is used as an initial nitrogen source, a further difference is found: enzyme synthesis is no longer continuous. this interruption of synthesis does not appear to be due to synchronous ce ...19676049855
regulation of nitrate reduction in aspergillus nidulans. 19676052720
a system for the study of interlocus specificity for both forward and reverse mutation in at least eight gene loci in aspergillus nidulans. 19676054957
synchrony of nuclear replication in individual hyphae of aspergillus nidulans.the synchrony of nuclear replication in individual, multinucleate hyphae of aspergillus nidulans has been investigated. samples were taken from cultures of germinating conidiospores, and the relative frequency of hyphae containing two to eight nuclei was determined. because the conidiospores are mononucleate, complete synchrony will yield populations of hyphae containing only 2(n) nuclei, n being the number of doublings after germination. the appearance of hyphae with total numbers of nuclei oth ...19676057801
a revised map of the eight linkage groups of aspergillus nidulans. 19676061654
chromosome instability related to gene suppression in aspergillus nidulans. 19676064104
lethal mutations and balanced lethal systems in aspergillus nidulans. 19676064441
genetic and biochemical studies of nitrate reduction in aspergillus nidulans.1. in aspergillus nidulans nitrate and nitrite induce nitrate reductase, nitrite reductase and hydroxylamine reductase, and ammonium represses the three enzymes. 2. nitrate reductase can donate electrons to a wide variety of acceptors in addition to nitrate. these artificial acceptors include benzyl viologen, 2-(p-iodophenyl)-3-(p-nitrophenyl)-5-phenyltetrazolium chloride, cytochrome c and potassium ferricyanide. similarly nitrite reductase and hydroxylamine reductase (which are possibly a singl ...19674382427
induction of inter- and intragenic mitotic recombination by fluorodeoxyuridine and fluorouracil in aspergillus nidulans. 19674226822
isolation of 6,7-dimethyl-8-ribityl lumazine from a riboflavin-less mutant of aspergillus nidulans. 19665915130
observations on the effects of a chromosome duplication in aspergillus nidulans. 19665915374
somatically unstable mutants of aspergillus nidulans. 19665925191
recessive mutants at unlinked loci which complement in diploids but not in heterokaryons of aspergillus nidulans. 19665929247
analysis of induced mutations in aspergillus nidulans. i. uv- and hno2-induced mutations. 19665929395
studies on the inhibition and mutation of aspergillus nidulans by acridines. 19665931141
the induction and repression of nitrate reductase in the fungus aspergillus nidulans. 19665940632
kinetics of fungal growth and phosphatase formation in aspergillus nidulans.dorn, g. (albert einstein college of medicine, new york, n.y.), and w. rivera. kinetics of fungal growth and phosphatase formation in aspergillus nidulans. j. bacteriol. 92:1618-1622. 1966.-a liquid culture system is described for growing aspergillus nidulans in a manner amenable to kinetic studies. changes in dry weight, protein, deoxyribonucleic acid (dna), inorganic phosphate, alkaline phosphatase, and acid phosphatase activity were followed over a 40-hr interval. in both limiting- and high-p ...19665958101
thin-layer chromatographic separation of the metabolic products of aspergillus nidulans. 19665958835
interlocus specificity for chemical mutagens in aspergillus nidulans. 19665964558
isolation of 5-amino-4-ribitylaminouracil from a riboflavineless mutant of aspergillus nidulans. 19665971789
the influence of the cytoplasm on mutation in aspergillus nidulans. 19665972693
genetical analysis of proline mutants and their suppressors in aspergillus nidulans. 19665980118
formation of 4,5-diaminouracil in a riboflavineless mutant of aspergillus nidulans. 19665987043
a pair of pteridine derivatives in a heterokaryon of two mutants of aspergillus nidulans. 19665987145
fine structure analysis of the gene for p-fluoro-phenylalanine resistance in aspergillus nidulans. 19666004989
fine analysis of mitotic intracistronic crossing-over in aspergillus nidulans. 19666004996
electron transport pathways in riboflavinless mutants of aspergillus nidulans. 19666005316
the radiation sensitivity of a cytoplasmic mutant of aspergillus nidulans. 19665297427
the interaction between ultra-violet and gamma irradiation in aspergillus nidulans. 19665297652
heterokaryon incompatibility and variation in wild populations of aspergillus nidulans. 19665226960
a reciprocal phenotypic instability affecting development in aspergillus nidulans. 19665230323
the two-way selection of mutants and revertants in respect of acetate utilization and resistance to fluoro-acetate in aspergillus nidulans. 19655848711
the use of p-fluorophenylalanine with 'master strains' of aspergillus nidulans for assigning genes to linkage groups. 19655848714
phosphatase mutants in aspergillus nidulans.three mutants at three different phosphatase loci produce inactive enzymes at 35 degrees c but partially or fully active enzynmes at 25 degrees c. furthermore, a suppressor mutant (su5pala1) which restores alkaline phosphatase activity in the pala1 mtutant is an allele of palcc4, a mzutant with a simultaneous reduction in alkaline and acid phosphatase activity. these data suggest that the phosphataseproteins may be made up of two or more different polypeptide chains, and that some of the polypep ...19655852975
origins of translocations in aspergillus nidulans. 19655857597
wild-type and mutant stocks of aspergillus nidulans. 19655857598
purification of nitrate reductase and cytochrome c reductase from aspergillus nidulans. 19655866385
resistance to various inhibitors in aspergillus nidulans. 19655867759
polarized negative interference in the lys-51 region of aspergillus nidulans. 19655872613
an investigation of the suitability of the suppressors of meth 1 in aspergillus nidulans for the study of induced and spontaneous mutation. 19655878248
complementation at the adenylosuccinase locus in aspergillus nidulans. 19655882197
aspergillosis (aspergillus nidulans) involving bone. 196514263488
genetic analysis of the phosphatases in aspergillus nidulans. 196514301537
a comparison of the ultraviolet effect on the mitotic recombination in two different cistrons of aspergillus nidulans. 196514333965
the "minute" cytoplasmic variant of aspergillus nidulans. 196414127547
nucleo-cytoplasmic interactions in the 'red' cytoplasmic variant of aspergillus nidulans. 196414127548
uv-induced mitotic recombination in the paba-1 region af aspergillus nidulans. 196414170380
physiological and genetic effects of 8-azaguanine on aspergillus nidulans. 196414202372
isolation and inhibitory effects of kb cell cultures of 3'-deoxyandenosine from aspergillus nidulans (eidam) wint. 19645836540
the genetic analysis of carbohydrate utilization in aspergillus nidulans. 196313974284
the adaptive metabolism of d-galactose in aspergillus nidulans. 196313974285
independently segregating genetic loci concerned with nitrate reductase activity in aspergillus nidulans. 196314023503
radiation effects and mitotic recombination in diploids of aspergillus nidulans. 196314030092
heterokaryon compatibility of closely related wild isolates of aspergillus nidulans. 196314080689
the genetical basis of heterokaryon incompatibility in aspergillus nidulans. 196314080690
studies on aspergilli. viii. sulphur requirements of some ascosporic members of the aspergillus nidulans group. 196314086287
effects of disintegration of incorporated 32p in aspergillus nidulans. 196314102201
[apropos of a case of bronchial aspergilloma due to aspergillus nidulans]. 196314111509
synthesis from sulphate and accumulation of s-sulphocysteine by a mutant strain of aspergillus nidulans. 196313937435
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