Puccinia psidii in Queensland, Australia: disease symptoms, distribution and impact

Pegg, G. S., Giblin, F. R., McTaggart, A. R., Guymer, G. P., Taylor, H., Ireland, K. B., Shivas, R. G. and Perry, S. (2013) Puccinia psidii in Queensland, Australia: disease symptoms, distribution and impact. Plant Pathology, 63 5: 1005-1021. doi:10.1111/ppa.12173

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Author Pegg, G. S.
Giblin, F. R.
McTaggart, A. R.
Guymer, G. P.
Taylor, H.
Ireland, K. B.
Shivas, R. G.
Perry, S.
Title Puccinia psidii in Queensland, Australia: disease symptoms, distribution and impact
Formatted title
Puccinia psidii in Queensland, Australia: disease symptoms, distribution and impact
Journal name Plant Pathology   Check publisher's open access policy
ISSN 0032-0862
Publication date 2013-12-11
Year available 2013
Sub-type Article (original research)
DOI 10.1111/ppa.12173
Volume 63
Issue 5
Start page 1005
End page 1021
Total pages 17
Place of publication Chichester, West Sussex, United Kingdom
Publisher Wiley-Blackwell Publishing
Collection year 2014
Language eng
Formatted abstract
Puccinia psidii has long been considered a significant threat to Australian plant industries and ecosystems. In April 2010, P. psidii was detected for the first time in Australia on the central coast of New South Wales (NSW). The fungus spread rapidly along the east coast and in December 2010 was found in Queensland (Qld) followed by Victoria a year later. Puccinia psidii was initially restricted to the southeastern part of Qld but spread as far north as Mossman. In Qld, 48 species of Myrtaceae are considered highly or extremely susceptible to the disease. The impact of P. psidii on individual trees and shrubs has ranged from minor leaf spots, foliage, stem and branch dieback to reduced fecundity. Tree death, as a result of repeated infection, has been recorded for Rhodomyrtus psidioides. Rust infection has also been recorded on flower buds, flowers and fruits of 28 host species. Morphological and molecular characteristics were used to confirm the identification of P. psidii from a range of Myrtaceae in Qld and compared with isolates from NSW and overseas. A reconstructed phylogeny based on the LSU and SSU regions of rDNA did not resolve the familial placement of P. psidii, but indicated that it does not belong to the Pucciniaceae. Uredo rangelii was found to be con-specific with all isolates of P. psidii in morphology, ITS and LSU sequence data, and host range.
Keyword Eucalyptus rust
guava rust
Myrtle rust
Puccinia psidii
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article first published online: 11 DEC 2013

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Alliance for Agriculture and Food Innovation
Official 2014 Collection
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Citation counts: TR Web of Science Citation Count  Cited 16 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 19 times in Scopus Article | Citations
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Created: Mon, 06 Jan 2014, 14:36:06 EST by Alistair Mctaggart on behalf of Centre for Plant Science