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http://dx.doi.org/10.5423/RPD.2003.9.4.209

Blister blight of Tea (Thea sinensis) Caused by Exobasidium vexans in Korea  

Kwon, Jin-Hyeuk (Gyeongsangnam-do Agricultural Research and Extension Services)
Jeong, Seon-Gi (Gyeongsangnam-do Agricultural Research and Extension Services)
Park, Chang-Seuk (College of Agriculture and Life Sciences, Gyeongsang National University)
Publication Information
Research in Plant Disease / v.9, no.4, 2003 , pp. 209-212 More about this Journal
Abstract
Blister blight was occurred on tea (Thea sinensis) in a farmer's tea garden located in Sicheon-myon, Sancheong-gun, Gyeongnam province, Korea. The typical symptoms of the disease were appeared on the leaves and bud. The early symptom were started with small yellowish spots then infected area became upheave and covered with white blister which the hymenium de.veloped from under neath of epidermis. Generally, the infected leaves and buds were appeared like rice cake. Colonies formed on PDA were developed white, later turned milk white. Basidia were 2 sterigma, and 30${\sim}$53 ${\times}$ 3.1${\sim}$5.8 ${\mu}m$ in size. Basidiospores were ellipsoid curved, coloriess, 1-celled and 11${\sim}$14.7 ${\times}$ 4${\sim}$5.4 ${\mu}m$ in size. The optimum temperature for growth of the fungus was about $25^{\circ}C$ on PDA and PSA. This is the first report on the blister blight of tea caused by Exobasidium vexans in Korea.
Keywords
Blister blight; Exobasidium vexans; Tea (Thea sinensis);
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