人类euphratica PeMAX2对抗PeGRP2以稳定与盐耐受性相关的目标mRNA
概括
这项研究显示,更多的增长2 (PeMAX2) 蛋白降解了富含糖氨酸的Populus euphraticaRNA结合蛋白2 (PeGRP2),通过改善离子稳态和光合作用来增强的耐受性.
科学领域:
- 植物生物学
- 分子生物学
- 压力生理学
背景情况:
- 富含甘氨酸的Populus euphraticaRNA结合蛋白2 (PeGRP2) 通过破坏mRNA的稳定性,对的盐耐受性产生负面影响.
- 对PeGRP2的翻译后调节对于理解其在盐耐药性中的作用至关重要.
研究的目的:
- 研究耐盐树中PeGRP2的翻译后调节.
- 为了阐明PeGRP2和More Axillary Growth 2 (PeMAX2) 之间的相互作用及其对盐分耐受性的作用.
主要方法:
- 确定了PeGRP2与F盒蛋白PeMAX2的相互作用.
- 使用了体外降解试验和转基因 (Populus × canescens和P. euphratica) 过度表达PeMAX2,PeGRP2或两者.
- 分析了离子稳态,活性氧物种 (ROS) 水平和光合作用参数.
主要成果:
- PeMAX2通过蛋白质体路径促进PeGRP2的降解.
- 通过维持Na+和ROS平衡,增强了PeMAX2的过度表达.
- 通过降低光合作用和平衡,PeGRP2对盐耐受性产生负面调节;PeMAX2通过降低PeGRP2水平减轻这种影响.
- 通过稳定参与光合作用和离子运输的目标mRNA,PeMAX2对抗PeGRP2的负面影响.
结论:
- 在盐应激中调节的PeMAX2可促进PeGRP2的降解,减轻对盐耐受性的负面影响.
- PeMAX2-PeGRP2信号通路是Populus euphratica盐反应的一个关键机制.
更多相关视频
09:41Translating Ribosome Affinity Purification TRAP to Investigate Arabidopsis thaliana Root Development at a Cell Type-Specific Scale
Published on: May 14, 2020
12.2K
08:39Author Spotlight: Polysome Profiling Protocol for Studying Translational Regulation in Arabidopsis Under Heat Stress
Published on: October 11, 2024
1.8K
相关概念视频
Responses to Salt Stress
13.4K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.4K
Stringent Response in E. coli
52
Bacterial growth is closely tied to nutrient availability, with cells proliferating exponentially under favorable conditions and entering a stationary phase when resources become scarce. This transition is mediated by a regulatory mechanism known as the stringent response, which allows bacteria to adapt to nutrient deprivation by modulating gene expression and metabolic activity.During nutrient scarcity, intracellular amino acid levels decline. It results in the accumulation of uncharged tRNAs...
52
Adaptations that Reduce Water Loss
26.3K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
26.3K
Responses to Drought and Flooding
10.9K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.9K
Responses to Heat and Cold Stress
13.8K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.8K
Riboswitches
8.5K
Riboswitches are non-coding mRNA domains that regulate the transcription and translation of downstream genes without the help of proteins. Riboswitches bind directly to a metabolite and can form unique stem-loop or hairpin structures in response to the amount of the metabolite present. They have two distinct regions – a metabolite-binding aptamer and an expression platform.
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
8.5K
