文献类型： 外文期刊

作者： Zhu, Fupeng ¹ ; Zhu, Yan ¹ ; Zhao, Yuanshou ² ; Chen, Fu ³ ; Sheng, Wenjun ¹ ; Zhang, Wei ¹ ; Wang, Pengqing ¹ ; Deng, Jiangwen ¹ ; Sun, Yunyu ¹ ; Zhang, Weibing ¹ ; Li, Yongcai ¹ ;

作者机构： 1.Gansu Agr Univ, Coll Food Sci & Engn, Lanzhou 730070, Peoples R China

2.Lanzhou Ind Res Inst, Lanzhou 730000, Peoples R China

3.Gansu Acad Agr Sci, Inst Potato, Lanzhou 730070, Peoples R China

关键词： antifungial activity; chalcone; cyanide-resistant respiration; Fusarium tricinctum; Trichothecium roseum

期刊名称：COATINGS （ 影响因子：3.4； 五年影响因子：3.4 ）

ISSN：

年卷期： 2023 年 13 卷 10 期

页码：

收录情况： SCI

摘要： Chalcones are a class of flavonoids possessing antimicrobial properties and have potential for use as coatings of plant products for the control of postharvest diseases. The effects of 2 ',4 '-dichloro-chalcone on the in vitro growth and in vivo pathogenicity of Fusarium tricinctum and Trichothecium roseum were investigated. First, 1 mu M of 2 ',4 '-dichloro-chalcone strongly inhibited the mycelial growth and conidial production of F. tricinctum (32.3%) and T. roseum (65.2%) in vitro. Meanwhile, the cell membrane permeability was increased by 25% and 22.5% and the accumulation of reactive oxygen species was increased by 41.7 and 65.4%, respectively, of F. tricinctum and T. roseum. This treatment also significantly inhibited the total respiration rate and activated the cyanide-resistant respiratory pathway in both pathogens. The expression level of AOX was enhanced in F. tricinctum and T. roseum by 52.76 and 39.13%, respectively. This treatment also significantly inhibited the expansion of potato dry rot from F. tricinctum (48.6%) and apple rot spot from T. roseum (36.2%). Therefore, 2 ',4 '-dichloro-chalcone has potential use as an alternative safety method in the control of postharvest diseases by F. tricinctum and T. roseum in agricultural practices.