Plant Pathology (2009) 58, p. 793 (Arocha et al.)

Y. Arocha, B. Piñol, R. Almeida, K. Acosta, M. Quiñones, T. Zayas, M. Varela, Y. Marrero, E. Boa and J.A. Lucas (2009)
First report of phytoplasmas affecting organoponic crops in central and eastern Cuba
Plant Pathology 58 (4), 793-793
Abstract: Cabbage (Brassica oleracea), beetroot (Beta vulgaris) and cassava (Manihot esculenta) plants grown in Cuba were observed with symptoms of leaf yellowing, small fruits, and stunting. Radish (Raphanus sativus) plants showed leaf yellowing, mosaic, crinkling, and smaller leaves, and carrot (Daucus carota) plants exhibited yellowing and purpling of leaf tips becoming necrotic progressively with little leaves and shortening of internodes. The presence of phytoplasmas was demonstrated with PCR analysis in 26/32 samples from the symptomatic species surveyed. All samples showed restriction enzym patterns identical to the 16SrI-C reference control `Candidatus Phytoplasma asteris', except those from radish that were identical to the 16SrII-A reference control `Ca. Phytoplasma aurantifolia'.
(The abstract has been supplied by the author or ISPI and is excluded from the Creative Commons licence.)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Phytoplasma asteris	Beet/sugarbeet (Beta vulgaris)	Cuba
	Phytoplasma asteris	Cabbage (Brassica oleracea)	Cuba
	Phytoplasma asteris	Carrot (Daucus carota)	Cuba
	Phytoplasma asteris	Cassava (Manihot esculenta)	Cuba
	Phytoplasma aurantifolia	Radish (Raphanus sativus)	Cuba