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基于碳点的级联纳米酶减轻了在伊米达克洛普里德应激下在生菜中的植物毒性

Fengqiong Chen¹, Ziyan Zhou¹, Na Yang²

¹Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, PR China; College of Horticulture, South China Agricultural University, Guangzhou 510642, PR China.

|November 9, 2024

概括

具有纳米酶活性的碳点 (CD) 保护免受伊米达克洛普里德 (IMI) 农药的破坏. 这些CD减少了氧化应激和农药残留物,确保了更安全的食品.

科学领域:

农业科学农业科学
生物化学生物化学
材料科学材料科学材料科学

背景情况:

杀虫剂的使用,如伊米达克洛普里德 (IMI),导致氧化应激,并损害了植物的排毒.
制定减轻农药植物毒性的策略对于作物健康和食品安全至关重要.

研究的目的:

合成具有双纳米酶活性的碳点 (CD),以减轻 IMI 诱导的菜植物毒性.
在分子和生理层面研究CDs对IMI压力的保护机制.

主要方法:

碳点 (CDs) 的合成具有超氧化物脱酶类 (SOD类) 和过氧化酶类 (POD类) 活动.
在IMI压力下用CDs处理生菜,并评估氧化应激标志物 (O2•−,H2O2,MDA).
分析与植物防御和解毒途径相关的基因表达,以及IMI残留物的量化.

主要成果:

CD 显示显著的 SOD 类和 POD 类活动,归因于特定的功能组 (-NH2, -COOH, -OH, -CO).
在IMI压力下,CD降低了活性氧物种 (O2•−,H2O2) 和MDA水平分别为26.77%,48.52%和13.10%.
CDs上调排毒基因表达,导致IMI残留减少42.74%,并确保可接受的每日摄入水平.

结论:

合成的CD有效地通过增强抗氧化剂防御和排毒系统来减轻 IMI 诱导的菜中的植物毒性.
CDs代表了减少农作物中的农药残留物的有希望的方法,有助于更安全的农业实践和粮食生产.

关键词:

抗氧化剂是一种抗氧化剂.碳点 (CD) 是指一个碳点.排毒排毒排毒排毒食品安全食品安全伊米达克洛普里德 (IMI) 应激压力菜是什么意思菜是什么意思

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