虫和树状菌根真菌通过共性通路改善玉米的盐分耐受性
Binglei Wang1,2,3, Mingxuan Xiao1,2,3, Jia Cao1,2,3
1College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, P. R. China.
Journal of experimental botany
|February 13, 2025
概括
虫和状菌根真菌 (AMF) 通过改善共性通路,提高玉米的盐分耐受性. 这些有益的生物减少了的积累,促进了营养素的吸收,在盐水条件下保护了植物的功能.
科学领域:
- 植物科学 植物科学
- 土壤生物学 土壤生物学
- 环境科学 环境科学
背景情况:
- 盐应激会对植物生长和功能产生负面影响.
- 使用血H+-ATPases和Na+/H+抗载体的交性通路对于在盐度下维持平衡和植物健康至关重要.
- 众所周知,树状菌根真菌 (AMF) 和地会影响植物生理和土壤环境.
研究的目的:
- 研究土和AMF对 (Na+) 在盐水条件下的玉米根的吸收和运输的影响.
- 阐明由虫和AMF介导的增强盐分耐受性背后的分子机制.
主要方法:
- 根中Na+含量和 (K+) 与Na+的比率的量化.
- 对血膜H+-ATPase和Na+/H+抗载体活性进行测试.
- 测量抗氧化酶的活性.
- 转录组分析以确定基因表达变化.
主要成果:
- 在盐水条件下,地和AMF显著降低了玉米根中的Na+积累.
- 随着虫和AMF治疗,观察到根系K+:Na+比率的增加.
- 检测到血H+-ATPases,Na+/H+抗载体,抗氧化酶和N/P吸收蛋白的转录的升级.
- 有证据表明,酸 (ABA) 中介盐耐受性效应.
结论:
- 虫和AMF通过改善离子运输的共性通路来增强玉米幼苗的盐分耐受性.
- 这些土壤生物通过协调的分子和生理调整,有助于植物对盐应激的弹性.
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