外源促进的减少和丰富:证据,机制和前景
Fengyu Huang1, Li Chen2, Ying Zhou3
1State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China; Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China.
Journal of hazardous materials
|June 28, 2024
概括
补充剂显著降低了大米粒中的积累,减轻了健康风险. 这种必不可少的微量营养素还可以促进大米的生长,并使受污染的土壤中的谷物富含.
科学领域:
- 环境科学 环境科学
- 植物科学 植物科学
- 营养科学 营养科学
背景情况:
- 大米中的 (Cd) 积累是一个全球性的问题,通过食物链对健康构成风险.
- (Se) 是一种必不可少的微量营养素,可以减轻Cd的毒性和植物的吸收.
研究的目的:
- 评估Se补充对Cd污染土壤中米性能的影响和机制.
- 评估Se对大米生长,Cd积累和营养质量的影响.
主要方法:
- 进行了一项全球元分析.
- 综合了关于Se补充对大米生长和Cd积累的影响的数据.
主要成果:
- 补充Se显著改善了Cd污染的土壤中的米生长.
- 在大米根 (16.3%),芽 (24.6%) 和谷物 (37.3%) 中,Cd积累减少.
- Se影响了Cd载体基因表达,增强了细胞壁封存,并降低了土壤Cd的生物可用性.
结论:
- 补充Se是一种可行的策略,可以减少大米粒中的Cd,并将其与Se丰富.
- Se通过促进光合作用和抗氧化酶活性来减轻Cd诱导的氧化应激.
- 处理减轻了中的Cd对健康的危害,特别是在污染程度低到中等的土壤中.
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