文献类型： 外文期刊
作者： Pei, Shaopei 1 ; Liu, Ruiling 1 ; Gao, Haiyan 1 ; Chen, Hangjun 1 ; Wu, Weijie 1 ; Fang, Xiangjun 1 ; Han, Yanchao 1 ;
作者机构： 1.Minist Agr & Rural Affairs, Key Lab Fruits & Vegetables Postharvest & Proc Te, Zhejiang Acad Agr Sci, Food Sci Inst,Key Lab Postharvest Handling Fruits, Hangzhou 310021, Peoples R China
关键词： Antifungal activity; Carvacrol; Membrane integrity; Reactive oxygen species; Ultrastructure
期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：5.537； 五年影响因子：5.821 ）
ISSN： 0925-5214
年卷期： 2020 年 163 卷
页码：
收录情况： SCI
摘要： Carvacrol (CVR) is an essential oil and has been reported to exhibit significant inhibitory effects against a wide range of microorganisms. Anthracnose, which is caused by Colletotrichum fructicola is one of the most serious postharvest diseases in pitaya fruit. In this study, we investigate the inhibitory effect of CVR against C. fructicola and elucidate the possible modes of action. The results from our study showed that treatment with CVR could effectively inhibit mycelial growth, spore germination and germ tube elongation of C. fructicola in vitro, significantly reducing the onset and development of anthracnose in red pitaya fruit. Membrane permeability and leakage of cellular components in the hyphae of C. fructicola increased as the concentrations of CVR increased. The results from microscopy indicated that CVR treatment caused abnormalities of hyphal morphology, disruption of cytoplasmic membranes, and disorganization of intracellular organelles. Moreover, CVR treatments induced the generation of reactive oxygen species (ROS), which caused oxidative injury to the cell membrane vialipid peroxidation. The antifungal mechanism of CVR against C. fructicola may be attributed to induced ROS production, increased membrane permeability, abnormalities of ultrastructure, and loss of intracellular contents.
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