Australasian Plant Pathology (2011) 40, 286-292

Anthony J. Young, Thomas S. Marney, Mark Herrington, Don Hutton, Apollo O. Gomez, Adam Villiers, Paul R. Campbell and Andrew D.W. Geering (2011)
Outbreak of angular leaf spot, caused by Xanthomonas fragariae, in a Queensland strawberry germplasm collection
Australasian Plant Pathology 40 (3), 286-292
Abstract: Strawberry (Fragaria (×) ananassa) plants exhibiting leaf lesions consistent with angular leaf spot (ALS, caused by Xanthomonas fragariae Kennedy and King 1962) were identified in the Queensland strawberry germplasm at Bundeberg in May 2010. Water suspensions of bacterial ooze tested positive using a previously described primer set. However, the slow growth rate of X. fragariae and the presence of a fast-growing, non-pathogenic, undescribed Xanthomonas species presented problems that were overcome by dilution plating and DNA sequence analysis. Sequencing of the gyrB locus of putative colonies of X. fragariae indicated 100% sequence similarity to other X. fragariae isolates. A new set of diagnostic primers for X. fragariae based on the gyrB locus is presented.
(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): Anthony J. Young, Andrew D.W. Geering

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution
identification/taxonomy

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Xanthomonas fragariae	Strawberry (Fragaria)	Australia (NT+QLD)