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A pH-response nano pesticide delivery system based on ZIF-8: effectiveness, delivery and safety in mustard
Nan Fang1, Jinhua Jiang1, Xueping Zhao1
1State Key Laboratory for Quality and Safety of Agro - Products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021 Zhejiang, China.
Abstract:
The pesticide nano delivery systems based on ZIF-8 were widely reported and improved the uptake and translocation of pesticides in crops. Few studies have reported how ZIF-8 improved the uptake and translocation of pesticides in crops. Here, a simple abamectin (AVM) nano delivery system (AVM@ZIF-8) was developed, which we hypothesized could improve the uptake and translocation of the non-systemic pesticide AVM in mustard without increasing the negative effects on mustard. The results showed that the foliar uptake (9.25-12.93 times) and the bidirectional translocation of AVM@ZIF-8 were significantly increased (1.94-27.94 times) compared to AVM. This is because ZIF-8 promotes the in vivo transport of AVM by disrupting the cell membrane and modifying its subcellular distribution. In addition, loading of AVM using ZIF-8 attenuated the effect of AVM on mustard galactose metabolism. These results provide a reference for understanding the uptake, translocation, and safety of ZIF-8-based pesticide nano delivery systems in crops.
