Plant Pathol J > Volume 25(3); 2009 > Article
The Plant Pathology Journal 2009;25(3):294-298.
DOI: https://doi.org/10.5423/PPJ.2009.25.3.294    Published online September 30, 2009.
Occurrence of Stem Canker on Rape Caused by Leptosphaeria biglobosa in Korea
Sung Kee Hong, Wan Gyu Kim, Dong Beom Shin, Hyo Won Choi, Young Kee Lee, Sang Yeob Lee
Abstract
Stem canker symptoms were observed in a rape field in Muan, Korea during a disease survey in May 2006. A total of 15 isolates of Phoma sp. were obtained from the infected stems of the plant. All isolates were identified as Leptosphaeria biglobosa based on their morphological and cultural characteristics. The Korean isolates of L. biglobosa were assigned to ``brassicae`` among six subclades of L. biglobosa complex based on the entire ITS sequences of rDNA. Pathogenicity of the fungal isolates was confirmed on leaves and stems of rape by artificial inoculation. This is the first report that Leptosphaeria biglobosa causes stem canker of rape in Korea.
Key Words: Leptosphaeria biglobosa, pathogenicity, rape, stem canker


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