在干旱和洪水期间有益的根系相关微生物组在植物中的压力
Pakistan journal of biological sciences : PJBS
|October 20, 2023
概括
干旱和洪水压力威胁到农作物产量. 了解植物微生物相互作用,特别是根微生物在植物耐受性中的作用,是提高在这些极端天气条件下作物生产率的关键.
科学领域:
- 植物生理学和微生物生态学.
- 环境压力生物学.
- 农业科学与可持续农业.
背景情况:
- 干旱和洪水事件的频率和严重性的增加对全球作物生产率构成重大威胁.
- 植物对干旱的反应涉及依赖酸 (ABA) 和独立于ABA的途径,而洪水造成的缺氧影响水力导电性,营养吸收和根呼吸.
- 根微生物组,包括促进植物生长的树脂细菌,内和菌根,在植物适应干旱和洪水条件方面发挥着至关重要的作用.
研究的目的:
- 在干旱和洪水压力下审查植物微生物相互作用的主要机制.
- 强调耐洪水和耐干旱微生物在作物生产率中的作用.
- 了解植物相关的微生物如何在压力期间影响植物生理学.
主要方法:
- 文献综述侧重于植物生理学和根微生物组功能.
- 分析微生物对植物耐压力的贡献.
- 检查微生物代谢物和植物激素参与应激反应的检查.
主要成果:
- 根微生物组,包括促进植物生长的树枝细菌,内植物和菌根菌,在干旱和洪水期间帮助植物.
- 球微生物产生植物激素 (auxins,cytokinin,乙烯),ACC除氨酶和外聚糖,诱导系统干旱耐受性.
- 缺氧可以有利于根系球中的潜在致病性无氧微生物.
结论:
- 植物微生物相互作用对于减轻干旱和洪水对作物植物的负面影响至关重要.
- 利用有益的根微生物的能力为开发适应气候变化的农业提供了一个有前途的战略.
- 对抗洪水和干旱的微生物群落的进一步研究可以为可持续的作物生产带来创新的解决方案.
关键词:
它们是内植物 (Endophyte).缺氧 缺氧是指缺氧的情况.菌根性菌 菌根性菌是一种植物激素是一种植物激素.根系细菌 (Rhizobacteria) 是一种细菌.根系球 (Rhizosphere) 是一个根系球.更多相关视频
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