Antifungal activities of a natural trisaccharide ester against sour rot in mandarin fruit

文献类型： 外文期刊

第一作者： Xu, Liangxiong

作者： Xu, Liangxiong;Mao, Lutian;Li, Xiaojie;Feng, Linyan;Jiang, Yueming;Duan, Xuewu;Li, Taotao;Sun, Jian;Duan, Xuewu;Feng, Linyan

作者机构：

关键词： Trisaccharide ester; Citrus reticulate; Sour rot

期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：6.751； 五年影响因子：7.001 ）

ISSN： 0925-5214

年卷期： 2022 年 191 卷

页码：

收录情况： SCI

摘要： Sour rot caused by Geotrichum citri-aurantii is one of the most important diseases leading to postharvest loss of Citrus reticulate. In this study, the antifungal activity of MTE-1, a natural trisaccharide ester from the cultures of Pezicula neosporulosa, against G. citri-aurantii was evaluated. MTE-1 treatment inhibited the mycelium growth of G. citri-aurantii. Paper-disc agar-diffusion experiment showed that the inhibitory effect of MTE-1 against G. citriaurantii was almost comparable to that of the commercial fungicide albesilate. Moreover, application of MTE-1 efficiently reduced the incidence of sour rot of mandarin fruit inoculated with G. citri-aurantii. Ultrastructural observations showed that MTE-1 treatment resulted in thinning of cell wall in spores and reduction of cell content in mycelia of G. citri-aurantii. Furthermore, transcriptome analysis along with RT-qPCR validation was conducted to better understand the role of MTE-1 on G. citri-aurantii. Several important genes related to fungal pathogenicity and virulence, including CRZE PMA1, RMEI, ALDH and Lip, showed decreasing expression levels after MTE-1 treatment, which might be responsible for its antimicrobial activity. Overall, application of MTE-1 is a promising method to control sour rot of harvested citrus fruit.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序