Biological activity of phyllosinol, a phytotoxic compound isolated from a culture filtrate of Phyllosticta sp.

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概要

• 論文の詳細を見る

• 1. Phyllosinol is a phytotoxic metabolite of Phyllosticta sp. This substance at 100μg/ml produced dark grey necrotic lesions on the leaf of red clover. Sensitivities of various plant species to phyllosinol differed both quantitatively and qualitatively. 2. Phyllosinol reduced root growth in rice seedlings by 60% at 10^<-4>M, whereas stimulation of root elongation occurred at a concentration range from 10^<-9> to 10^<-5>M 3. Phyllosinol at 2.5×10^<-4>M promoted adventitious root formation in epicotyls of Azukia cuttings by about 100%. Promotion was partly reduced by simultaneous application of cysteine. 4. IAA-induced elongation of isolated Avena coleoptile sections was inhibited by phyllosinol at a concentration range from 10^<-5> to 10^<-3>M. 5. Sulfhydryl compounds, i.e. cysteine and glutathione relieved inhibition caused by phyllosinol in IAA-induced elongation of Avena coleoptile sections. 6. GA_3-induced elongation of wheat leaf sections was slightly inhibited by phyllosinol at 10^<-4>M. 7. Phyllosinol also has antibiotic activity. Among the organisms tested, Phycomycetes and Gram-negative bacteria appeared most susceptible to phyllosinol.

• 日本植物生理学会の論文

著者

• NIKI Hiroshi

  Department of Oto-Laryngology,School of Medicine,Tokushima University

• Niki Hiroshi

  Department Of Agricultural Chemistry Hokkaido University

• SAKAMURA Sadao

  Department of Agricultural Chemistry, Faculty of Agriculture, Hokkaido University

• Sakamura Sadao

  Department Of Agricultural Chemistry Hokkaido University

• Sakamura Sadao

  Department Of Agricultural Chemisitry Faculty Of Agriculture Hokkaido University

• SAKAI RYUTARO

  Department of Plant Pathology and Entomology, National Institule of Agriculiural Sciences

• SATO Rinzo

  Hokkaido National Agricultural Experiment Station, Sapporo

• Sakai Ryutaro

  Department Of Plant Pathology And Entomology National Institule Of Agriculiural Sciences

• Sato Rinzo

  Hokkaido National Agricultural Experiment Station Sapporo

• Sakai Ryutaro

  Department of Chemistry, Saitama University, Saitama 338-8570, Japan

• SAKAMURA SADAO

  Department of Agricultural Chemistry, Hokkaido University

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