Molecular identification of Golovinomyces (Ascomycota: Erysiphales) anamorphs on the Solanaceae in Australia.

摘要

Three taxa of anamorphic powdery mildews (Erysiphales: Ascomycota), referable to the teleomorph genus Golovinomyces on the Solanaceae in Australia, were determined by the RFLP analysis and sequencing of the rDNA ITS region. The first taxon, part of an Oidium lycopersici-O. longipes clade, occurred on a range of host genera including Solanum, Cyphomandra, Lycopersicon, Nicotiana and Petunia. The second taxon consisted of specimens on Solanum tuberosum and Cestrum and was referable to the Golovinomyces orontii complex. The third taxon contained a single specimen from glasshouse grown Lycopersicon esculentum and is suspected to be G. biocellatus, a species previously known only from the Lamiaceae.