Research in Plant Disease 2006;12(2):115-118.
Published online August 30, 2006.
Botrytis cinerea에 의한 네프로레피스 잿빛곰팡이병
전용호, 김정호, 김영호
Gray Mold of Nephrolepis Caused by Botrytis cinerea
Yong Ho Jeon, Jung Ho Kim, Young Ho Kim
In February of 2000-2001, the gray mold disease occurred on nephrolepis (Nephrolepis sp.) grown in a flower nursery farm in Suwen, Korea. Typical symptoms were water-soaked brown or blackish lesions on terminal leaf blades. Severely infected leaves were entirely blighted with grayish fungal mycelia formed on the surface. Conidia of the fungus in mass were hyaline or gray, 1-celled, mostly ellipsoid or ovoid and 13.5~16.9 × 6.8~9.2 μm in size. Conidiophores were formed on PDA with 8.7~11.1 μm in width. The sclerotia were readily formed within 2 or 3 days on PDA. In addition, the Biolog database gave the causal fungus a high similarity to Botrytis cinerea (78%) with a match probability of 100%. Pathogenicity of the causal organism was proved according to Koch``s postulate. The causal organism was identified as Botrytis cinerea based on its mycological characteristics and utilization of carbon sources with Biolog system as supporting data. This is the first report of gray mold of nephrolepis caused by Botrytis cinerea in Korea.
Key Words: Biolog, Botrytis cinerea, Gray mold, Nephrolepis sp., Pathogenicity

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