文献类型： 外文期刊

作者： Zhang, Zhilin ¹ ; Mo, Zhenli ¹ ; Zhang, Xiaoli ¹ ; Wang, Jinke ¹ ; Li, Juanjuan ¹ ; Shi, Hongan ¹ ; Wang, Pang ² ; Lin, Zhufeng ³ ;

作者机构： 1.Hubei Engn Univ, Hubei Key Lab Qual Control Characterist Fruits &, Coll Life Sci & Technol, Xiaogan 432000, Peoples R China

2.Wuhan Acad Agr Sci, Inst Vegetables, Wuhan 430345, Peoples R China

3.Hainan Acad Agr Sci, Inst Plant Protect, Key Lab Plant Dis & Pest Control Hainan Prov, Haikou 571100, Hainan, Peoples R China

关键词： Fusarium avenaceum; Lemongrass essential oils; Antifungal activity; Plasma membrane; Pectin methyl galacturonase

期刊名称：JOURNAL OF ESSENTIAL OIL BEARING PLANTS （ 影响因子：1.971； 五年影响因子：1.691 ）

ISSN： 0972-060X

年卷期：

页码：

收录情况： SCI

摘要： Fusarium avenaceum is distributed worldwide and directly causes considerable crop losses. The compositions of lemongrass essential oils (EOs) were analysed by gas chromatography-mass spectrometry (GC-MS). The antifungal activity of lemongrass essential oils (EOs) and the main compounds against F. avenaceum were evaluated in vitro, and the underlying mechanism was investigated. Geranial, geranyl acetate, beta-citronellol, citronellal, limonene, and citral were demonstrated to be the major constituents of the EOs. Lemongrass EOs and the main compounds possessed the antifungal effect against F. avenaceum, and citral exerted the strongest antifungal effects against F. avenaceum compared with other compounds, with IC50 values of 0.087 mu l/mL. Lemongrass EOs and their major constituents increased the permeability of the F. avenaceum plasma membrane, resulting in increased conductivity, protein and soluble sugar leakage. The activity of pectin methyl galacturonase (PMG) in F. avenaceum was suppressed after treatment with lemongrass EOs. The results indicated that lemongrass EOs inhibited F. avenaceum growth by targeting its plasma membrane and reduced its pathogenicity by inhibiting enzyme activity.