对稀土元素的根源效应和毒性机制进行系统审查和元分析
Chenyi He1, Yiping Feng1, Yirong Deng2
1Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China.
Chemosphere
|July 27, 2024
概括
稀土元素 (REEs) 通过引起氧化应激和破坏细胞功能来影响植物根. 它们的植物毒性随着度和时间的增加而增加,影响根部发育和微生物.
科学领域:
- 环境科学 环境科学
- 植物生物学 植物生物学
- 生态毒理学 生态毒理学
背景情况:
- 稀土元素 (REEs) 具有独特的特性,需要研究它们与植物的相互作用.
- 植物根系是REE暴露和吸收的主要接口.
- 了解REE对根部发育和毒性的影响对于环境风险评估至关重要.
研究的目的:
- 调查 REE 对植物根丰富,分化,发育和毒性的影响.
- 阐明REE与植物根系和相关微生物相互作用的机制.
- 提供REE诱导植物毒性的元分析.
主要方法:
- 对根表面的REE沉积和复合的分析.
- 研究REE诱导的氧化应激和干扰Ca2+稳态在根细胞.
- 评估REE对根部分泌和根间微生物的影响.
- 来自各种研究的植物毒性数据的元分析.
主要成果:
- 在根部表面积累的REEs受到根部分泌物的影响,影响吸收和分化.
- REEs通过活性氧物种诱导氧化应激,并通过干扰Ca2+干扰细胞功能来破坏细胞功能.
- REEs的植物毒性,包括脂质过氧化和改变的抗氧化酶活性,随着度和暴露时间的增加而增加.
- 根间微生物对REE的敏感性因REE的特性而异.
结论:
- REE具有显著的植物毒性,影响植物生理参数和根健康.
- REE毒性的机制涉及氧化应激和破坏重要的细胞过程.
- 可再生能源对植物和相关微生物群体构成生态毒理学风险,随着时间和度的推移,其影响会升级.
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