Research in Plant Disease 2010;16(1):86-89.
Published online April 30, 2010.
Phyllosticta cruenta에 의한 둥굴레 갈색점무늬병
권진혁, 진영민, 심창기, 쩐티펑지
 
Brown Leaf Spot of Doonggulle (Polygonatum odoratum) Caused by Phyllosticta cruenta
Jin Hyeuk Kwon, Young Min Jin, Chang Ki Shim, Tran Thi Phuong Chi
Abstract
Brown leaf spot caused by Phyllosticta cruenta from 2007 to 2009 occurred severely in an herbs exhibition on Doonggulle (Polygonatum odoratum) at Gangju pond in Jeongchon-myon, Jinju city, Gyeongnam province, Korea. The typical symptoms of this disease were appeared on the brown leaf spot of leaves. Lesions on the leaves were appeared elliptical or irregular with 2~8 mm in size. Infected leaves were wilted, blighted and eventually died. Pycnidiospores and pycnidia of the fungus were abundantly formed on PDA. The optimum temperature for mycelial growth was 20~25oC. Pycnidiospores were not readily formed on PDA, colorless in color, globose~subglobose in shape, 10~18×5~12 μm in size and appendage hanged 4~15 μm in size. Pycnidia were globose~subglobose in shape, dark brown in color and 60~162×70~174 μm in size. On the basis of mycological characteristics and pathogenicity test on host plants, the fungus was identified as Phyllosticta cruenta (Kunze: Fries) Kickx. This is the first report on the brown leaf spot of Doonggulle caused by P. cruenta in Korea.
Key Words: Brown Leaf spot, Doonggulle, Phyllosticta cruenta, Polygonatum odoratum


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