升高的热层臭氧和作物生产:潜在的负面影响和植物防御机制
Farzana Nowroz1, Mirza Hasanuzzaman1, Ayesha Siddika1
1Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh.
Frontiers in plant science
|January 24, 2024
概括
臭氧 (O3) 水平的上升会通过减少光合作用和作物产量来损害植物. 改善作物管理和选择耐受品种等策略可以减轻这种臭氧压力.
科学领域:
- 植物科学 植物科学
- 环境科学 环境科学
- 农业 农业 农业 农业
背景情况:
- 由于人类活动和自然过程导致大气中臭氧 (O3) 水平的增加,对植物健康构成重大威胁.
- 植物吸收臭氧会损害细胞结构,损害光合作用,破坏生理功能,导致生长和作物产量减少.
研究的目的:
- 审查臭氧 (O3) 压力对植物的有害影响.
- 总结植物对臭氧暴露的反应.
- 讨论减轻臭氧引起的损害和作物损失的策略.
主要方法:
- 文献综述总结了有关臭氧对植物影响的现有研究.
- 对植物对臭氧的生理和生化反应的分析.
- 对臭氧压力的各种缓解策略的汇编.
主要成果:
- 臭氧 (O3) 造成氧化损伤,降低光合作用效率,并对植物生长和繁殖产生负面影响.
- 臭氧压力的关键指标包括活性氧物种 (ROS) 的增加,脂质过氧化和离子泄漏.
- 臭氧破坏了植物的抗氧化防御系统和植物激素调节.
结论:
- 臭氧压力显著降低了作物的产量和质量.
- 改善作物管理,二氧化碳施肥,营养管理和选择耐受品种等策略可以减轻臭氧损害.
- 需要进一步的研究来开发有效的方法来增强植物的抗氧化防御和对臭氧的生理弹性.
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