Journal of Phytopathology (2012) 160, 311-313

Zheng-Nan Li, Lei Zhang, Jian-Yun Man and Yun-Feng Wu (2012)
Detection and identification of elm yellows group phytoplasma (16SrV) associated with alfalfa witches' broom disease
Journal of Phytopathology 160 (6), 311-313
Abstract: In July, 2011, alfalfa plants were observed in Yangling, Shaanxi Province, China with typical witches' broom symptoms. The presence of phytoplasma was confirmed by transmission electron microscopy and a nested PCR, which amplified a 1.2-kb fragment using universal primer pairs P1/P6 followed by R16F2n/R2. Sequence, phylogeny and RFLP analyses showed that the alfalfa witches' broom disease was associated with a phytoplasma of group 16SrV, subgroup V-B. This is the first record of the 16SrV phytoplasma group infecting alfalfa plants.
(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): Yunfeng Wu

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.
	16SrV phytoplasma group	Alfalfa/lucerne (Medicago sativa)	China (NE)