文献类型： 外文期刊
第一作者： Yang, Chen
作者： Yang, Chen;Liu, Su;Li, Mao-Ye;Xie, Sheng-Nan;Du, Yong-Mei;Xu, Kuo;Ni, Lin;Xu, Kuo
作者机构：
关键词： Nicotiana tabacum; Valsa mali var; mali; Alternaria porri; Botrytis cinerea; antifungal activity
期刊名称：NATURAL PRODUCT COMMUNICATIONS （ 影响因子：0.986； 五年影响因子：1.068 ）
ISSN： 1934-578X
年卷期： 2021 年 16 卷 11 期
页码：
收录情况： SCI
摘要： A phytochemical investigation of an aqueous ethyl alcohol (EtOH) extract of the flowers of Nicotiana tabacum L. led to the identification of one new eudesmane-type sesquiterpenoid (1) and 14 known compounds, including 7 flavones (2-8), 6 phenolic acids (9-14), and 1 coumarin (15). The chemical structure of 1 was established on the basis of high-resolution electrospray ionization (HRESIMS) and 1D and 2D NMR analyses, while the other structures were elucidated by 1D NMR and LC-MS data. The antiphytopathogenic activities of all the isolated compounds were tested to determine their antifungal activity against Valsa mali var. mali, Alternaria porri, and Botrytis cinerea at a concentration of 10 mu g/mL. Compound 4 exhibited more potent antifungal effects against Valsa mali var. mali with a % growth inhibition of 47.9 +/- 1.2%, while the others only showed insignificant activities.
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