Journal article
Puccinia psidii in Queensland, Australia: disease symptoms, distribution and impact
Plant Pathology, Vol.63(5), pp.1005-1021
2014
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 NSW. The fungus spread rapidly along the east coast and in December 2010 was found in Qld followed by Victoria a year later. Puccinia psidii was initially restricted to the south-eastern part of Queensland 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 t 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.
Details
- Title
- Puccinia psidii in Queensland, Australia: disease symptoms, distribution and impact
- Authors
- Geoff S Pegg (Author) - University of the Sunshine CoastFiona Giblin (Author) - University of the Sunshine CoastA R McTaggart (Author) - University of QueenslandG P Guymer (Author) - Queensland HerbariumH Taylor (Author) - Department of Agriculture, Fisheries and Forestry, AustraliaK B Ireland (Author) - Department of Agriculture, Fisheries and Forestry, AustraliaR G Shivas (Author) - Department of Agriculture, Fisheries and Forestry, AustraliaSuzy Perry (Author) - Department of Agriculture, Fisheries and Forestry, Australia
- Publication details
- Plant Pathology, Vol.63(5), pp.1005-1021
- Publisher
- Wiley-Blackwell Publishing Ltd.
- Date published
- 2014
- DOI
- 10.1111/ppa.12173
- ISSN
- 0032-0862
- Copyright note
- Copyright © 2014 Wiley-Blackwell Publishing Ltd. This is the accepted version of the following article: Pegg, G. S., Giblin, F. R., McTaggart, A. R., Guymer, G. P., Taylor, H., Ireland, K. B., Shivas, R. G. and Perry, S. (2014), Puccinia psidii in Queensland, Australia: disease symptoms, distribution and impact. Plant Pathology, 63: 1005-1021, which has been published in final form at http://dx.doi.org/10.1111/ppa.12173.
- Organisation Unit
- University of the Sunshine Coast, Queensland
- Language
- English
- Record Identifier
- 99450057802621
- Output Type
- Journal article
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