Plant Pathology (2007) 56, p. 347 (Ornek et al.)

H. Ornek, Y. Aysan, M. Mirik and F. Sahin (2007)
First report of bacterial leaf spot caused by Xanthomonas axonopodis pv. begoniae, on begonia in Turkey
Plant Pathology 56 (2), 347-347
Abstract: In 2003 and 2004, serious outbreaks of a suspected bacterial leaf spot disease were observed on begonia plants (Begonia and Saxifraga) grown for potted production in commercial greenhouses located in several provinces of Turkey. The initial symptoms of the disease were small round spots and angular necrotic areas on leaf surfaces followed by general leaf yellowing and necrosis. Bacteria consistently isolated from the diseased tissues formed yellow-coloured mucoid and convex colonies on the media. Eighteen isolates were characterised as non-sporing, gram negative, rod-shaped, motile, aerobic, oxidase-negative, catalase-positive and amylolytic-positive. They were identified as Xanthomonas axonopodis pv. begoniae based on fatty acid methyl ester analysis. Pathogenicity was confirmed by spray inoculation of the leaves on begonia plants.
(The abstract has been supplied by the author or ISPI and is excluded from the Creative Commons licence.)
Link to article at publishers website
Database assignments for author(s): Yesim Aysan

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Xanthomonas axonopodis pv. begoniae	Begonia (crop)	Turkey
	Xanthomonas axonopodis