Metabolites of the pathogenic fungus Verticillium dahliae VII. The phytotoxic pigment PKZh-1 from the culture liquid
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The phytotoxic pigment PKZh-1 that causes the characteristic symptoms of wilt in tests on cotton-plant shoots in a concentration of 100–150 µg/ml, has been isolated from the culture liquid of the fungusVerticillium dahliae Kleb.
On the basis of qualitative reaction, spectral characteristics, and a study of hydrolysis products, PKZh-1 has been assigned to the peptide group. A red substance identified as 3,6,8-trihydroxy-1,4-naphthaquinone has been isolated from an acid hydrolyzate of PKZh-1.
KeywordsCulture Liquid Glycopeptide Cotton Plant Caustic Soda Peptide Group
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