Oidium ixodiae sp. nov. on Ixodia achilleoides in Australia

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Contents Vol 34(1)

doi:10.1071/AP04090

Oidium ixodiae sp. nov. on Ixodia achilleoides in Australia

James H. Cunnington ^A ^B ^C, Vyrna C. Beilharz ^A, Ian G. Pascoe ^A, Ann C. Lawrie ^B

^A Department of Primary Industries — Knoxfield, Private Bag 15, Ferntree Gully Delivery Centre, Vic. 3156, Australia.
^B Department of Biotechnology and Environmental Biology, RMIT University, PO Box 71, Bundoora, Vic. 3083, Australia.
^C Corresponding author. Email: James.Cunnington@dpi.vic.gov.au





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Australasian Plant Pathology 34(1) 91–94 http://dx.doi.org/10.1071/AP04090
Submitted: 20 August 2004 Accepted: 5 October 2004 Published online: 22 March 2005

Abstract

Oidium ixodiae sp. nov. is described from the indigenous Australian plant Ixodia achilleoides (Asteraceae). Morphological characters and an rDNA internal transcribed spacer sequence demonstrate that this new species has affinities with the teleomorphic genus Golovinomyces, but is distinct from the introduced species G. cichoracearum on the Asteraceae. Similarities with Oidium lycopersici on the Solanaceae in Australia are discussed.