Oidium ixodiae sp. nov. on Ixodia achilleoides in Australia.

摘要

O. ixodiae sp. nov. is described from the indigenous Australian plant I. achilleoides. Morphological characterization and rDNA internal transcribed spacer sequence analysis demonstrated that this new species has affinities with the teleomorphic genus Golovinomyces, but is distinct from the introduced species G. cichoracearum infecting Asteraceae. Similarities of O. ixodiae with O. lycopersici infecting Solanaceae in Australia are discussed.