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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Induction of Antiphytopathogenic Metabolite and Squalene Production and Phytotoxin Elimination by Adjustment of the Mode of Fermentation in Cocultures of Phytopathogenic Nigrospora oryzae and Irpex lacteus
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Induction of Antiphytopathogenic Metabolite and Squalene Production and Phytotoxin Elimination by Adjustment of the Mode of Fermentation in Cocultures of Phytopathogenic Nigrospora oryzae and Irpex lacteus

机译：诱导抗肺疗法代谢产物和植物生成和植物毒素消除通过调整植物疗法尼可孢子酸盐和IRPEX乳酸的植物发酵模式消除

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摘要

The investigation of the metabolites from different cocultures of Nigrospora oryzae and Irpex lacteus in solid medium revealed two new squalenes (1 and 2); one new azaphilone (3); two new tremulane sesquiterpenes (4 and 5); and three known compounds, conocenol B (6), conocenol C (7), and 4-(4-dihydroxymethylphenoxy)benzaldehyde (8). The antagonistic relationship was examined by studying metabolite production. The production of compounds 6 and 8 by I. lacteus after the induction of coculture indicated significant selectivity for antifungal activity against phytopathogenic N. oryzae, with MICs of 16 mu g/mL; compounds 6 and 8 also exhibited antifungal activities in vivo against Cerasus cerasoides infected by N. oryzae at concentrations of 100 mu g/mL. New compounds 2 and 4 showed antifungal activities against Colletotrichum gloeosporioides, with MICs of 8 mu g/mL, and compound 4 showed antifungal activity against Didymella glomerata with an MIC of 1 mu g/mL. These results indicate that the mutually antagonistic relationship in the coculture of the phytopathogen and the endophyte can result in antibiotics that inhibit the phytopathogen and downregulate the production of phytotoxins by phytopathogenic N. oryzae. New compound 5 from I. lacteus showed weak activity against acetylcholinesterase (AChE), with an inhibition ratio of 16% at a concentration of 50 mu M.
机译：在固体培养基中从Nigrospora oryzae和Irpex乳酸的不同共培养的代谢物的调查显示出两种新尖叫（1和2）;一个新的azaphilone（3）;两个新的Tremulane Sesquiterpenes（4和5）;和三种已知的化合物，辛烯酚B（6），辛烯酚C（7）和4-（4-二羟基甲基苯氧基）苯甲醛（8）。通过研究代谢物生产来检查拮抗关系。通过I.乳酸的化合物6和8的制备在诱导聚集核后表明对植物疗法N. Oryzae的抗真菌活性的显着选择性，麦克风为16μg/ ml;化合物6和8还表现出体内抗真菌活性的抗真菌活性，Cerasus Cerasoides在100μg/ ml的浓度下被N. Oryzae感染。新化合物2和4显示了针对Collectrichum GloooSporioides的抗真菌活性，用8μg/ ml的麦克风，化合物4显示抗脱蛋白酶肾小球的抗真菌活性，MIC为1μg/ ml。这些结果表明，植物病理学和内心细胞的共络和内皮内的相互拮抗关系可以导致抑制植物病变的抗生素，并通过植物疗法N. Oryzae下调植物毒素的产生。来自I. Lacteus的新化合物5表现出对乙酰胆碱酯酶（疼痛）的弱活性，抑制比为50μm的浓度为16％。

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  • 作者

    Wu Ya-Mei; Zhou Qing-Yan; Yang Xue-Qiong; Luo Yu-Jie; Ojan Jing-Jing; Liu Shi-Xi; Yang Ya-Bin; Ding Zhong-Tao;

  • 作者单位

    Yunnan Univ Funct Mol Anal &

    Biotransformat Key Lab Univ Yunn Sch Chem Sci &

    Technol Second Cuihu North Rd Kunming 650091 Yunnan Peoples R China;

    Yunnan Univ Funct Mol Anal &

    Biotransformat Key Lab Univ Yunn Sch Chem Sci &

    Technol Second Cuihu North Rd Kunming 650091 Yunnan Peoples R China;

    Yunnan Univ Funct Mol Anal &

    Biotransformat Key Lab Univ Yunn Sch Chem Sci &

    Technol Second Cuihu North Rd Kunming 650091 Yunnan Peoples R China;

    Yunnan Univ Funct Mol Anal &

    Biotransformat Key Lab Univ Yunn Sch Chem Sci &

    Technol Second Cuihu North Rd Kunming 650091 Yunnan Peoples R China;

    Yunnan Univ Funct Mol Anal &

    Biotransformat Key Lab Univ Yunn Sch Chem Sci &

    Technol Second Cuihu North Rd Kunming 650091 Yunnan Peoples R China;

    Yunnan Univ Funct Mol Anal &

    Biotransformat Key Lab Univ Yunn Sch Chem Sci &

    Technol Second Cuihu North Rd Kunming 650091 Yunnan Peoples R China;

    Yunnan Univ Funct Mol Anal &

    Biotransformat Key Lab Univ Yunn Sch Chem Sci &

    Technol Second Cuihu North Rd Kunming 650091 Yunnan Peoples R China;

    Yunnan Univ Funct Mol Anal &

    Biotransformat Key Lab Univ Yunn Sch Chem Sci &

    Technol Second Cuihu North Rd Kunming 650091 Yunnan Peoples R China;

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  • 正文语种 eng
  • 中图分类 营养卫生、食品卫生;农业科学;
  • 关键词

    Nigrospora oryzae; Irpex lacteus; metabolite; coculture induction; mutual antagonism; antifungal selectivity;

    机译：nigrospora oryzae;Irpex乳酸;代谢物;共培养诱导;相互拮抗作用;抗真菌选择性;

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