文献类型： 外文期刊
作者： Zhu, Congyi 1 ; Lei, Mengying 5 ; Andargie, Mebeaselassie 4 ; Zeng, Jiwu 1 ; Li, Jianxiong 4 ;
作者机构： 1.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangzhou 510640, Guangdong, Peoples R China
2.Key Lab South Subtrop Fruit Biol & Genet Resource, Guangzhou 510640, Guangdong, Peoples R China
3.Guangdong Prov Key Lab Trop & Subtrop Fruit Tree, Guangzhou 510640, Guangdong, Peoples R China
4.Chinese Acad Sci, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China
5.Guangdong Ecoengn Polytech, Guangzhou 510520, Guangdong, Peoples R China
6.Univ Goettingen, Mol Phytopathol & Mycotoxin Res, Gottingen, Germany
关键词： Penicillium digitatum; Tannins; Antifungal activity; Antifungal mechanism
期刊名称：PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY （ 影响因子：2.747； 五年影响因子：2.388 ）
ISSN： 0885-5765
年卷期： 2019 年 107 卷
页码：
收录情况： SCI
摘要： Penicillium digitatum is a destructive post-harvest pathogen of citrus fruit during storage and marketing. The aim of this study is to evaluate the activity of the natural polyphenolic compounds, tannins, on P. digitatum. Tannins acted against P. digitatum by inhibiting its mycelial growth and spore germination. In vivo tests showed that tannins significantly (P < 0.05) decrease the disease symptoms of P. digitatum in artificially inoculated citrus fruit. Storage tests also showed that tannins reduce the disease severity of green mold on citrus fruit by 70%. To determine the antifungal mechanism of tannins on P. digitatum, we evaluated the integrity of the cell wall and the permeability of the membrane. The disruption of cell wall and the plasma membrane caused leakage of the intracellular contents, such as sugars. These findings suggest that the cell wall of P. digitatum is the target for tannins and that they can potentially be used as an alternative to control citrus green mold.
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