Fungicide-loaded mesoporous silica nanoparticles promote rice seedling growth by regulating amino acid metabolic pathways

文献类型： 外文期刊

第一作者： Zhao, Pengyue

作者： Zhao, Pengyue;Wang, Chaojie;Zhang, Shuojia;Zheng, Li;Li, Fengmin;Cao, Chong;Cao, Lidong;Huang, Qiliang

作者机构：

关键词： Fungicide-loaded mesoporous silica  nanoparticles; Plant growth; Amino acid metabolism; Thifluzamide; Rice seedlings

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：14.224； 五年影响因子：12.984 ）

ISSN： 0304-3894

年卷期： 2022 年 425 卷

页码：

收录情况： SCI

摘要： Mesoporous silica nanoparticles (MSN) are widely researched as carriers for pesticides (including fungicides, insecticides and herbicides) to improve their effective utilization rate in the target plant. However, pesticides enter the target crops and may bring some impacts on the growth and physiological function of plants. When they are loaded to nanoparticles, different effects on the metabolic properties of target plants will be produced. In this study, thifluzamide-loaded MSN was prepared with average diameter of 80-120 nm. Rice seedlings were exposed for 7 days to different treatments of MSN, thifluzamide, and thifluzamide-loaded MSN. After treatment, nontargeted metabolomic method was employed to explore the metabolic pathways. It was found that the negative effect of thifluzamide to rice seedling was alleviated by thifluzamide-loaded MSN, since it increased amino acid metabolic pathways, which improved purine and pyrimidine metabolism and induced the production of total protein. Thifluzamide-loaded MSN can also relieve the damage of thifluzamide to rice seedlings by altering the chlorophyll, phenols and flavonoids content. In conclusion, it was proposed that the mechanism of fungicideloaded MSN prevent plant from negative effects of fungicides by regulating the amino acid metabolic pathways.

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