摘要:

SUMMARYAn agar medium was developed which proved especially useful for isolating cultures of Boletaceae. The addition of small amounts of safflower oil (2.5 ml/liter) to liquid media stimulated mycelial growth of species of Boletaceae tested. A major increase in mycelial growth occurred during the first week of shake culture in media to which oil had been added.

ISSN:0027-5514    

DOI:10.1080/00275514.1977.12020038

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

摘要:

SUMMARYThree genera of the Gymnoascaceae are described and discussed.Gymnascella, a genus generally ignored since it was established, includes three species transferred fromArachniotus: G. aurantiaca, G. citrina, andG. kamyschkoi. Arachniotusis considered a monotypic genus withA. Candidus. Pseudoarchniotusis clarified and broadened with some species transferred fromArachniotusand it includes:P. desertorum, P. flavoluteus, P. roseus, P. ruber, andP. trochleosporus.Numerous other species were examined and excluded fromArachniotusandPseudoarachniotus.

ISSN:0027-5514    

DOI:10.1080/00275514.1977.12020039

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

摘要:

SUMMARYThe quinones, juglone, 2-hydroxyjuglone and 3-hydroxyjuglone, and the tetralones, (+)-3,4-dihydro-4,8-dihydroxy-1(2H) naphthalenone and (-)-cis-3,4-dihydro-3,4,8-trihydroxy-1 (2H) naphthalenone were isolated and identified from culture filtrates of the melanin-deficientbrm-2 mutant ofVerticillium dahliae.The probable origin of these metabolites from (+)-scytalone[3,4-dihydro-3,6,8-trihydroxy-1 (2H) napthalenone] via 1,3,8-trihydroxynaphthalene was shown. The genetic lesion in thebrm-2 mutant apparently prevents conversion of 1,3,8-trihydroxynaphthalene to (-)-vermelone [3,4-dihydro-3,8-dihydroxy-1(2H)-naphthalenone] in the biosynthetic pathway from (+)-scytalone to melanin.

ISSN:0027-5514    

DOI:10.1080/00275514.1977.12020040

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

摘要:

SUMMARYTwo ascospore progenies from a cross between two obligately heterothallic isolates ofCochliobolus spieiferwere found to be sexually compatible with both mating types although self-sterile, and were termed“dual compatible.”All matings between dual compatible isolates were fertile and all ascospore progeny derived from crosses of dual compatible isolates and heterothallic isolates were fertile with the dual compatible parent. Genetic analyses of first and second generation dual compatible isolates gave dissimilar segregation patterns. Segregation patterns for one ascospore isolate followed a 1:1:1 ratio for mating types ofA: a: dual, respectively. The second ascospore isolate followed a 1:2:1 segregation ratio for two generations for mating types of nonparental: parental: dual, respectively. The dual mating capacity does not appear to conform to any previously described sexual mechanism in the fungi.

ISSN:0027-5514    

DOI:10.1080/00275514.1977.12020041

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1977.12020042

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1977.12020043

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1977.12020044

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1977.12020045

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1977.12020046

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1977.12020047

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor