Corynespora cassiicolaによるシソ斑点病(新称)

概要

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A new disease of perilla (Perilla frutescens) broke out in Oita Prefecture in 1990. The symptoms of the disease appeared on leaves and stem as brown spot. Corynespora sp. was isolated from infected lesions. Conidia were hyaline to pale brown, obclavate to cylindrical, curved, broad at the base, formed on conidiophores singly or in chain. Conidiophores were pale to mid brown and erect. No stromata were observed. The optimum temperature of mycelial growth lied at 27.5-30℃. The fungus was pathogenic to 17 species including tomato, cowpea, sesame and others among 18 tested plants in inoculation experiments. Based on these morphological and pathological characters, the causal fungus was identified as Corynespora cassiicola (Berk. & Curt.) Wei by the similarity to the description of Ellis (1971).
日本植物病理学会の論文
1991-12-25