Plant Disease (2021) 105 (10 - 0330)

B. Jarausch, S. Biancu, S. Kugler, T. Wetzel, M. Baumann, P. Winterhagen, W. Jarausch, A. Kortekamp and M. Maixner (2021)
First report of flavescence dorée-related phytoplasma in a productive vineyard in Germany
Plant Disease 105 (10 - 0330)
Abstract: During 2020, grapevine plants grown in Germany were observed with symptoms of leaf rolling and discoloration, incomplete lignification, and black pustules arranged in lines along the shoots. Diseased shoots were black and necrotic in December. DNA was extracted from symptomatic plants and analyzed by PCR using phytoplasma specific primers. The presence of phytoplasmas was demonstrated in the symptomatic plants and the PCR products were cloned and sequenced. Sequence analysis showed the presence of ' Candidatus Phytoplasma solani' in 7 out of 8 symptomatic plants. However, one plant was found to contain the flavescence dorée phytoplasma.
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Database assignments for author(s): Barbara Jarausch, Thierry Wetzel, Andreas Kortekamp, Michael Maixner

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 vitis	Grapevine (Vitis)	Germany