植物中的重金属压力:用外源物质减轻压力的方法
Di Feng1, Rongxue Wang1, Xiaoan Sun1
1Weifang University of Science and Technology/Shandong Facility Horticulture Bioengineering Research Center, Weifang 262700, Shandong, China.
The Science of the total environment
|July 10, 2023
概括
外源物质 (ES) 可以通过激活防御机制和调节金属吸收来帮助植物应对重金属压力 (HMS). 然而,需要进一步的研究,以充分解决农业中重金属污染的普遍问题.
科学领域:
- 环境科学 环境科学
- 植物科学 植物科学
- 农业科学 农业科学
背景情况:
- 工业化导致重金属的积累,损害生态系统和作物.
- 重金属压力 (HMS) 对全球植被产生负面影响,特别是农业产量.
- 外源物质 (ESs) 被探索为减轻植物HMS的潜在代理物.
研究的目的:
- 审查和分类外部物质 (ESs) 缓解植物重金属应力 (HMS) 的机制.
- 综合了最近150多项关于ES及其对HMS影响的研究结果.
- 确定研究缺口,并提出未来打击农业重金属污染的方向.
主要方法:
- 对150多篇近期出版物进行了全面的文献审查.
- 分析了93项研究,报告了用于减轻重金属应力 (HMS) 的外源物质 (ES).
- 在植物中ES作用的七个关键机制的分类.
主要成果:
- 确定了ESs缓解HMS的七个主要机制:抗氧化剂系统的改善,度调节物质的合成,光化学系统的增强,金属积累/迁移绕道,内源性激素调节,基因表达调节和微生物参与调节.
- 在减轻对作物和其他植物的HMS影响方面,ES证明了其有效性.
- 目前的ES应用不足以完全解决全球重金属污染问题.
结论:
- 外源物质 (ESs) 通过各种机制为植物中重金属应力 (HMS) 的管理提供了有希望的策略.
- 需要进一步进行大量的研究,以开发针对重金属污染的综合解决方案.
- 未来的研究应该专注于综合方法,包括植物修复,育种耐受性品种,并探索ES对可持续农业的协同效应.
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