Anti-conidial Germination Factors Induced in the Presence of Probenazole in Infected Host Leaves. I. Isolation and Properties of Four Active Substances

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概要

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• The highest inhibition rate of conidial germination of Pyricularia oryzae was shown by extracts of rice plant leaves inoculated by a pathogen after treatment with probenazole, a rice blast controlling agent. Four anti-conidial germination substances were isolated from these extracts. Substances A, C and D inhibited the germination of the conidia at concentrations between 100 and 200 mcg/ml, and substance B caused morphological changes in the germination tubes of the conidia with a little inhibition of germination. These substances were differentiated from momilactone A, B and the degraded or metabolized products of probenazole. Besides anti-conidial germination activity, they showed antimicrobial activities against several kinds of phytopathogenic bacteria of fungi on agar plates by diffusion method.

• 社団法人 日本農芸化学会の論文

著者

• Sekizawa Yasuharu

  Laboratory Of Applied Biochemistry Department Of Agricultural Chemistry Faculty Of Agriculture Tamag

• SUZUKI Yukio

  Research Institute for Bioresources, Okayama University

• SEKIZAWA Yasuharu

  Research Laboratories, Meiji Seika Kaisha, Ltd.

• SHIMURA Masaru

  Research Laboratories, Meiji Seika Kaisha, Ltd.

• IWATA Michiaki

  Research Laboratories, Meiji Seika Kaisha, Ltd.

• TASHIRO Naoko

  Research Laboratories, Meiji Seika Kaisha, Ltd.

• MASE Sadaaki

  Section of Agriculture, Department of Pharmaceutical Development, Meiji Seika Kaisha, Ltd.

• WATANABE Tetsuro

  Research Laboratories, Meiji Seika Kaisha, Ltd.

• Suzuki Yukio

  Research Insititute For Bioresources Okayama University

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