Studies on the Host-specific Pathotoxins Produced by Bipolaris (Helminthosporium) maydis, Race T, "Characterization of the Minor C35-, C47- and C49-Components of the Toxin Complex and Evidence Bearing on the Stereochemistry of Hydroxyl Groups"

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概要

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• The host-specific pathotoxin complex isolated from the culture filtrate and mycelial mat of Bipolaris (Helminthosporium) maydis, race T, was reduced to hydrocarbons. The hydrocarbons were separated by molecular sieves and analyzed by GC-MS. The MS gave typical spectra of normal, odd carbon numbered hydrocarbons from C35H72 to C49H100. Compounds differing from hydrocarbons only in the presence of an internal tetrahydropyran ring were obtained as byproducts from the toxin-complex reductions. These compounds were analyzed by CI (chemical ionization)-GC-MS and HR (high resolution)-GC-MS. The MS data supported the hypothesis that the C35- to C49- toxins are analogous compounds with many common partial structures. The configurations at both the C-6 and C-8 carbons of the major components appeared to be R.

• 社団法人 日本農芸化学会の論文

著者

• KAWARADA Akira

  Laboratory of Phytochemistry, The Institute of Physical and Chemical Research

• KNOCHE H.

  Laboratory of Agricultural Biochemistry, University of Nebraska

• DALY J.

  Laboratory of Agricultural Biochemistry, University of Nebraska

• KONO Yoshiki

  Laboratory of Phytochemistry, The Institute of Physical and Chemical Research

• TAKEUCHI Setsuo

  Laboratory of Phytochemistry, The Institute of Physical and Chemical Research

関連論文

• Studies on the Host-specific Pathotoxins Produced by Bipolaris (Helminthosporium) maydis, Race T, "Characterization of the Minor C35-, C47- and C49-Components of the Toxin Complex and Evidence Bearing on the Stereochemistry of Hydroxyl Groups"
• Isolation and Structure of a New Victoxinine Derivative Produced by Helminthosporium victoriae

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