Circular Leaf Spot of Sweet Basil Caused by Cercospora guatemalensis New to Japan

元データ 2002-02-25 日本植物病理学会

概要

A leaf spot disease on sweet basil (Ocimum basilicum L.) was observed in Chiba Prefecture in 1997. The lesions were amphigenous, circular to irregular, hygrophanous, dark brown. Stromata were amphigenous, composed of a few brown cells. Conidia with a thickened truncate base, filiform to cylindrical, hyaline, were produced from conidiophores with thickened conidial scars. These morphological characteristics agreed with those of Cercospora guatemalensis Mueller et Chupp. This species was new to Japan. The symptoms appeared 10 days after inoculation and the inoculated fungus was re-isolated. Artificial sporulation and detection from commercial seeds were not successful.

著者

Kobayashi Takao Department of Electrical Engineering, Faculty of Engineering, Fukui University
Kobayashi T Department Of International Agricultural Development Tokyo University Of Agriculture
NISHIKAWA Junji Department of Agricultural Science, Graduate School of Tokyo University of Agriculture
NAKASHIMA Chiharu Department of Agricultural Science, Graduate School of Tokyo University of Agriculture
Kobayashi Takao Department Of Bioregulatory Function Graduate School Of Medicine The University Of Tokyo
Nakashima C National Inst. Technol. And Evaluation (nite) Chiba Jpn
Nakashima Chiharu Department Of Agricultural Science Graduate School Of Agriculture Tokyo University Of Agriculture
Nishikawa Junji Department Of Agricultural Science Graduate School Of Tokyo University Of Agriculture

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