中文摘要：定向分馏红破斧木叶中抗禾谷镰刀菌的活性成分得到主要由四种3-氮-十七儿茶酚(PALK)组成的混合物。研究表明PALK成分能限制禾谷镰刀菌在宿主表面的附着及其对敏感谷物的毒力。值得进一步研究的是把它们作为添加剂用在抗禾谷镰刀菌的唑类杀菌剂中。
外文摘要：An antifungal activity-directed fractionation of leaf constituents from Schinopsis balansae on Fusarium graminearum yielded a fraction mainly made of a mixture of four 3-n-heptadec(en)ylcatechols (PALK). The PALK fraction showed on macroconidia germination a MIC100 value of 500 μg/mL which was twofold higher than that required for prothioconazole (MIC100 = 250 μg/mL). Sublethal concentrations of PALK modify the morphogenesis in germinating macroconidia, and decreased fungal production of H2O2 and deoxynivalenol biosynthesis at early fungal growth. Mixes of PALK and prothioconazole showed a synergic interaction. Our findings suggest that PALK constituents might restrict the adherence of F. graminearum to the surface of its hosts and its virulence on susceptible cereals. They deserve further research as additives of azole fungicides against F. graminearum.
外文关键词：Deoxynivalenol；oxidative stress；Schinopsis；urushiol
作者：Ficoseco, MEA；Sequin, CJ；Acenolaza, PG；Vattuone, MA；Catalan, CAN；Sampietro, DA
作者单位：-
期刊名称：NATURAL PRODUCT RESEARCH
期刊影响因子：1.057
出版年份：2017
出版刊次：12
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