Australasian Plant Pathology (2006) 35, 465-471

P.A. Joyce, F.E. Constable, J. Crosslin, K. Eastwell, W.E. Howell and B.C. Rodoni (2006)
Characterisation of Pear blister canker viroid isolates from Australian pome fruit orchards
Australasian Plant Pathology 35 (4), 465-471
Abstract: Pear blister canker viroid (PBCVd) was detected in pear (Pyrus sp.), nashi (Pyrus serotina) and quince (Cydonia oblonga) trees from various pome fruit growing regions of Australia using dot-blot hybridisation and RT-PCR techniques. Characteristic symptoms of PBCVd infection were not observed on the infected trees. This is the first report of PBCVd infecting nashi varieties. The 12 Australian PBCVd isolates showed 92-99% nucleotide sequence identity with previously published sequences of PBCVd from other countries. The Australian isolates fell into two distinct groups based on sequence similarity and secondary structures. The possible origin of PBCVd in Australia is discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Fiona E. Constable, Brendan Rodoni

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Pear blister canker viroid	Pear (Pyrus)
	Pear blister canker viroid	Quince (Cydonia oblonga)