Plant Disease (2022) 106, p. 1515 (Li et al.)

Qi-Cheng Li, Peng Chen, Qi-Qi Yang, Li-Chuan Chen, Yu Zhang, Ji-Dong Li and Jian-Can Feng (2022)
First report of 'Candidatus Phytoplasma ziziphi' in sweet potato in China
Plant Disease 106 (5), 1515-1515
Abstract: During 2020, sweet potato plants (Ipomoea batatas) were grown in Henan province, China as a ground cover under jujube trees which showed symptoms of jujube witches' broom. The sweet potato plants also showed symptoms of witches' broom and small, yellowing leaves. The incidence of symptomatic sweet potato plants in the orchard was about 60%. DNA was extracted from symptomatic jujube and sweet potato plants and analyzed by PCR using phytoplasma specific primers. The presence of a phytoplasma was demonstrated in the symptomatic jujube and sweet potato plants and the PCR product was cloned and sequenced. Sequence analysis showed the presence (100% sequence identity) in jujube and sweet potato plants of a ' Candidatus Phytoplasma ziziphi'-related phytoplasma strain.
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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 ziziphi	Sweet potato (Ipomoea batatas)	China (NE)