文献类型： 外文期刊
作者： Deng, Xile 1 ; Bian, Qiang 3 ; Zhou, Mingqing 6 ; Xie, Le 7 ; Zhang, Jichuan 2 ; Liu, Tianqi 2 ; Zhang, Yizhuo 4 ; Zhang, Li 5 ; Zhang, Jiaheng 2 ; Bai, Lianyang 1 ;
作者机构： 1.Hunan Acad Agr Sci, Changsha 410125, Peoples R China
2.Harbin Inst Technol Shenzhen, Sch Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Nankai Univ, Coll Chem, Natl Pesticide Engn Res Ctr Tianjin, Tianjin 300071, Peoples R China
4.Nankai Univ, Coll Life Sci, Dept Microbiol, Tianjin 300071, Peoples R China
5.China Agr Univ, Coll Sci, Dept Appl Chem, Beijing 100193, Peoples R China
6.Northeastern Univ, Coll Sci, Dept Chem, Shenyang 110819, Peoples R China
7.Hunan Acad Chinese Med, Affiliated Hosp, Hunan Hosp Integrated Tradit Chinese & Western Med, Dept Neurol, Changsha 410006, Peoples R China
关键词： bactericidal activity; kiwifruit bacterial canker (KBC); molecular simulations; nano pesticide; supramolecular nanocarrier
期刊名称：ADVANCED SCIENCE （ 影响因子：14.1； 五年影响因子：15.6 ）
ISSN：
年卷期： 2025 年 12 卷 31 期
页码：
收录情况： SCI
摘要： Kiwifruit, a nutritious fruit consumed globally, is affected by kiwifruit bacterial canker (KBC) caused by Pseudomonas syringae pv. actinidiae (Psa), which is a major biotic stress that adversely impacts its cultivation and production. KBC control is still challenging owing to the evolution of resistant populations of Psa, the environmental risks associated with copper bactericides, and lack of effective bactericides. Therefore, to develop novel and efficient bactericides against Psa, a matrine (MT)-5-methylsalicylic acid (5-OMESA) salt (MOS) is synthesized and its antibacterial activity is analyzed. The newly synthesized compound is more antibacterial against Psa than the commercial bactericide thiazole copper (TC). MOS significantly disrupts the membrane structure of Psa and penetrates the cells more efficiently. In addition, it has high affinities to the Psa FtsZ protein and DNA helicase, which probably contribute to its bactericidal activity. Subsequently, the encapsulation of MOS into a supramolecular nanocarrier hydroxypropyl-beta-cyclodextrin (HPCD) and the fabrication of a nano formulation (MOS@HPCD) result in superior solubility, penetration, foliar deposition and wettability, sustained release, and prolonged protection against Psa. The in vitro and in vivo control efficiencies of MOS@HPCD against Psa are markedly enhanced compared to those of MOS. This study proposes a promising supramolecular material to control KBC.
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