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http://dx.doi.org/10.5423/RPD.2017.23.1.56

Sclerotinia Rot on Basil Caused by Sclerotinia sclerotiorum in Korea  

Hahm, Soo Sang (Agricultural Environment Research Division, Research and Development Bureau, Chungcheongnam-do Agricultural Research & Extension Services)
Kim, Byoung Ryun (Agricultural Environment Research Division, Research and Development Bureau, Chungcheongnam-do Agricultural Research & Extension Services)
Han, Kwang Seop (Agricultural Environment Research Division, Research and Development Bureau, Chungcheongnam-do Agricultural Research & Extension Services)
Kwon, Mi Kyung (Agricultural Environment Research Division, Research and Development Bureau, Chungcheongnam-do Agricultural Research & Extension Services)
Park, In Hee (Agricultural Environment Research Division, Research and Development Bureau, Chungcheongnam-do Agricultural Research & Extension Services)
Publication Information
Research in Plant Disease / v.23, no.1, 2017 , pp. 56-59 More about this Journal
Abstract
During growing season of 2011 to 2013, Sclerotinia rot symptoms consistently have been observed on basil in Yesan-gun, Chungcheongnam-do in Korea. The typical symptom formed initially brownish spot on leaf and stem, and then advancing margins, wilting the whole plant and blighting, eventually died. On the surface of diseased lesions was observed cottony, white, dense mat of mycelial growth, and sclerotia ($30-100{\mu}m$ diameter) formed on stem and leaf. Morphological and cultural characteristic on potato dextrose agar, color of colony was white and colorless chocolate, sclerotium of irregular shape of the oval was black and $5-50{\mu}m$ diameter in size. In pathogenicity test, necrosis and wilt of the inoculated stem were observed in all plants and the pathogen was reisolated from stems. On the basis of mycological characteristics, pathogenicity, and internal transcribed spacer rDNA sequence analysis, this fungus was identified as Sclerotinia sclerotiorum. This is the first report of Sclerotinia rot on basil caused by S. sclerotiorum in Korea.
Keywords
Basil; Ocimum basilicum; Sclerotinia rot; Sclerotinia sclerotiorum;
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