Structures of Two Novel Pyriculol-related Compounds and Identification of Naturally Produced Epipyriculol from Pyricularia oryzae.

• KONO Yoshiki

  The Institute of Physical and Chemical Research

• SEKIDO Shigeko

  The Institute of Physical and Chemical Research

• YAMAGUCHI Isamu

  The Institute of Physical and Chemical Research

• KONDO Hideaki

  Taisho Pharmaceutical Co.

• SUZUKI Yoshikatsu

  The Institute of Physical and Chemical Research

• NETO Germane Cord

  The Institute of Physical and Chemical Research

• SAKURAI Akira

  The Institute of Physical and Chemical Research

• YAEGASHI Hiroshi

  Tohoku National Agricultural Experiment Station

抄録

Two novel pyriculol-related compounds, which contain the benzopyran or benzodioxocin skeleton, and epipyriculol were isolated from a solid agar culture of Pyricularia oryzae, the causal fungus of rice blast disease. They showed phytotoxic activity as well as inhibitory activity toward the spore germination of the fungus itself. Chemical and spectrometric studies showed them to be pyriculol-related compounds, i.e., compound A (I) was 3-(1', 3'-pentadienyl)-3, 4-dihydro-1H-2-benzopyran-4, 8-diol, compound B (II) was 4-(1'-hydroxy-2'-butenyl)-1, 4-dihydro-2, 3-benzodioxocin-10-ol, and IIIa was epipyriculol, the (10S)-isomer of pyriculol. Nonactive epidihydropyriculol (IIIc), the (10S-isomer of dihydropyriculol, was also identified.

収録刊行物

• Agricultural and Biological Chemistry

  Agricultural and Biological Chemistry 55 (11), 2785-2791, 1991

  公益社団法人 日本農芸化学会

キーワード

• General Agricultural and Biological Sciences
• General Biochemistry, Genetics and Molecular Biology

詳細情報

• CRID: 1390001206459789312
• NII論文ID: 110006325281
• NII書誌ID: AA00515312
• DOI: 10.1271/bbb1961.55.2785
• COI: 1:CAS:528:DyaK38Xht1aqtbY%3D
• ISSN: 18811280
• ISSN: 00021369
• ISSN: http://id.crossref.org/issn/00021369
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可