Utilizing zinc oxide nanoparticles as an environmentally safe biosystem to mitigate mycotoxicity and suppress Fusarium graminearium colonization in wheat
文献类型： 外文期刊
作者： Ibrahim, Ezzeldin 1 ; Xu, Lihui 3 ; Nasser, Raghda 4 ; Adel, Al-Shimaa Mohammed 6 ; Hafeez, Rahila 1 ; Ogunyemi, Solabomi Olaitan 1 ; Abdallah, Yasmine 1 ; Zhang, Zhen 7 ; Shou, Linfei 8 ; Wang, Daoze 9 ; Li, Bin 1 ;
作者机构： 1.Zhejiang Univ, Inst Biotechnol, State Key Lab Rice Biol & Breeding, Minist Agr,Key Lab Mol Biol Crop Pathogens & Insec, Hangzhou 310058, Peoples R China
2.Agr Res Ctr, Plant Pathol Res Inst, Dept Vegetable Dis Res, Giza 12916, Egypt
3.Shanghai Acad Agr Sci, Inst Ecoenvironm Protect, Shanghai 201403, Peoples R China
4.Zhejiang Univ, Inst Insect Sci, Coll Agr & Biotechnol, Minist Agr,Key Lab Mol Biol Crop Pathogens & Insec, Hangzhou 310058, Peoples R China
5.Minia Univ, Fac Sci, Zool & Entomol Dept, Elminya 61519, Egypt
6.Agr Res Ctr, Soils Water Environm & Microbiol Res Inst, Dept Microbiol, Giza 12916, Egypt
7.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, State Key Lab Qual & Safety Agroprod, Hangzhou 310021, Peoples R China
8.Stn Plant Protect & Quarantine & Control Agrochem, Hangzhou 310004, Peoples R China
9.Hangzhou Rural Revitalizat Serv Ctr, Hangzhou 310020, Peoples R China
关键词： ZnONPs; Antifungal mechanisms; DON reduction; Fusarium graminearum colonization; Plant protection
期刊名称：SUSTAINABLE MATERIALS AND TECHNOLOGIES （ 影响因子：8.6； 五年影响因子：9.5 ）
ISSN： 2214-9937
年卷期： 2024 年 41 卷
页码：
收录情况： SCI
摘要： The biosynthesis of zinc oxide nanoparticles (ZnONPs) offers great potential for plant disease management due to their potent antimicrobial properties and environmental safety. However, the precise mechanisms underlying their antifungal mode of action and role in suppressing mycotoxins remain unclear. This study aims to elucidate the mechanisms by which ZnONPs suppress the pathogenic fungus Fusarium graminearium, known to cause Fusarium head blight in wheat. Additionally, it investigates how ZnONPs mitigate the production of mycotoxins, which pose risks to humans and ruminants. The study demonstrates that ZnONPs, bioproduced by Pseudomonas poae (P. poae), inhibit not only fungal growth, colony formation, and spore germination, but also significantly reduce mycotoxin production of F. graminearium by inhibiting the synthesis of deoxynivalenol (DON), downregulating the FgTRI gene, and causing morphological alterations of the toxisomes. The results also highlight that ZnONPs exert significant effects on fungi through multiple mechanisms, including cell wall damage and the generation of reactive oxygen species (ROS). Moreover, ZnONPs effectively inhibit F. graminearium in wheat leaves and coleoptiles. Fluorescence microscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and optical microscopy all show that ZnONPs stop F. graminearium from getting into wheat plants and colonising them. Overall, the findings of this study provide evidence that ZnONPs are highly effective in reducing F. graminearium colonization in wheat plants and effectively decreasing mycotoxin production through multiple pathways.
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