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Nano-priming with Zn-chitosan nanoparticles regulates biochemical attributes and boost antioxidant defence in wheat seeds

机译:用Zn-Chotosan纳米粒子纳米灌注调节生化属性,并在小麦种子中提高抗氧化防御

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摘要

Seed priming is a simple seed preconditioning approach which requires little amounts of agrochemicals and minimizes the eco-toxicological effects on soil fertility. In this study Zn-chitosan nanoparticics (Zn-CNPs) have been employed as eco-friendly nano-priming agents to modulate biochemical changes for the enhancement of seed quality. Wheat seeds were primed with 0.12% and 0.16% Zn-CNPs for eight hours. The controlled and sustained release of Zn from bioactive CNPs increased total soluble proteins, sugars and enhanced the activity of hydrolytic enzymes compared to the control. Furthermore, priming treatments up-regulated antioxidant enzyme activities, increased total phenolics as non-enzymatic antioxidant and reduced malondialdehyde. Hence, Zn-CNP treatments induced the synthesis of important biomolecules, boosted antioxidant defence potential and controlled reactive oxygen species production. All these priming-induced biochemical changes are anticipated to produce positive effects on growth and germinating parameters in wheat seedling under normal and stress conditions. The micronutrient encapsulating biopolymer-based nano system has been suggested as a smart priming agent for several applications without compromising soil fertility and environmental safety.
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