Salicylic Acid Functionalized Zein for Improving Plant Stress Resistance and As a Nanopesticide Carrier with Enhanced Anti-photolysis Ability

Overview

Journal J Nanobiotechnology

Publisher Biomed Central

Specialty Biotechnology

Date 2023 Jan 20

PMID 36670406

Authors

Haozhao Yan

Li Hao

Huayao Chen

Xinhua Zhou

Hongbing Ji

Hongjun Zhou

Affiliations

Soon will be listed here.

Abstract

Background: There is a serious global problem of salinization of arable land, causing large reduction in world food production. Use of plant hormones is an effective way to reduce damage caused to crops and salt stress.

Results: In this study, PEI-EDA was modified with AM-zein and grafted with plant hormone SA (AM-zein-SA) and used as a nano-pesticide carrier to load emamectin benzoate (EB). The use of AM-zein-SA as a nano-pesticide carrier could reduce the damage caused by salt stress to crops. The structure of AM-zein-SA was characterized by FTIR, UV, fluorescence, Raman, and H NMR spectroscopic techniques. AM-zein-SA could effectively improve the resistance of EB to ultraviolet radiations, resistance of cucumber to salt stress, and the absorption of EB by plants. The experimental results showed that AM-zein-SA could effectively improve the anti-UV property of EB by 0.88 fold. When treated with 120 mmol NaCl, the germination rate of cucumber seeds under salt stress increased by 0.93 fold in presence of 6.25 mg/L carrier concentration. The POD and SOD activities increased by 0.50 and 1.21 fold, whereas the content of MDA decreased by 0.23 fold. In conclusion, AM-zein-SA nano-pesticide carrier could be used to improve the salt resistance of crops and the adhesion of pesticides to leaves.

Conclusion: AM-zein-SA, without undergoing any changes in its insecticidal activity, could simultaneously improve the salt stress resistance and salt stress germination rate of cucumber, reduce growth inhibition due to stress under high-concentration salt, and had a good effect on crops. In addition, EB@AM-zein-SA obviously improved the upward transmission rate of EB, as compared with EB. In this study, SA was grafted onto zein-based nano-pesticide carrier, which provided a green strategy to control plant diseases, insects, and pests while reducing salt stress on crops in saline-alkali soil.

Citing Articles

Preparation of Multifunctional Nano-Protectants for High-Efficiency Green Control of Anthracnose.

Yin J, Zhao J, Wang Z, Fang Z, Guo H, Cheng H Adv Sci (Weinh). 2024; 11(48):e2410585.

PMID: 39556712 PMC: 11672290. DOI: 10.1002/advs.202410585.

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