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Evidence of a chemical factor involved in the control of sexual development in the light leaf spot fungus pyrenopeziza brassicae ascomycotina


, : Evidence of a chemical factor involved in the control of sexual development in the light leaf spot fungus pyrenopeziza brassicae ascomycotina. Transactions of the British Mycological Society 87(2): 303-308

Experiments using polycarbonate membranes and ethanol extracts of fungal cultures showed that sexually fertile, paired cultures of the heterothallic ascomycete Pyrenopeziza brassicae produced a factor(s) which can promote the development of the sterile material of apothecia and depress asexual sporulation in single, unpaired isolates of the fungus. This property is specific to paired cultures; extracts of single mating-type cultures and mixtures of extracts of cultures of opposite mating types were ineffective.


Accession: 005411063

DOI: 10.1016/s0007-1536(86)80034-1

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Related references

Sutherland, K.G.; Fitt, B.D.L.; Steed, J.M.; Welham, S.J.; Gladders, P.; Turner, J.A., 1998: Development and control of light leaf spot (Pyrenopeziza brassicae) epidemics in winter oilseed rape in the UK. Field trials were conducted to investigate the development and control of light leaf spot (Pyrenopeziza brassicae) epidemics in winter oilseed rape in different parts of the UK. Oilseed rape debris was applied to crops at Boxworth and Rothamsted,...

Ball A.M.; Sawczyc M.K.; Ashby A.M.; Ingram D.S.; Johnstone K., 1991: Transformation of the fungus pyrenopeziza brassicae cause of light leaf spot of brassicas and complementation of mutants using a genomic library. An efficient gene transfer system is a prerequisite for the molecular genetic analysis of pathogenicity and other genes of plant pathogens. A transformation procedure for the fungus Pyrenopeziza brassicae was therefore devised. Three plasmids, enc...

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