植物对盐应激适应的分子洞察力
Dativa Gosbert Tibesigwa1, Wenhui Zhuang1, Sophia Hydarry Matola1
1State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China.
Plant, cell & environment
|April 11, 2025
概括
土壤盐度上升威胁到农业. 植物已经发展出分子机制来应对盐的压力,这对粮食安全至关重要. 进一步的研究对于提高作物弹性至关重要.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 农业科学 农业科学
背景情况:
- 土壤盐度是影响全球作物生产和粮食安全的主要非生物压力因素.
- 植物已经发展出复杂的分子机制,能够耐受和适应高盐度条件,减轻透和离子压力.
研究的目的:
- 审查植物盐耐受性分子调节机制的最新进展.
- 确定盐应激研究中的关键知识缺口和争议.
主要方法:
- 关于分子机制的文献综述,包括盐的吸收,运输,感知,信号,荷尔蒙调节,表观遗传修饰,遗传适应和翻译后修饰.
- 分析当前的研究趋势和未来的研究方向.
主要成果:
- 详细检查植物用于管理盐应激的各种分子通路.
- 识别正在进行的辩论和未解决的问题,如表观遗传记忆稳定性和生长压力权衡.
结论:
- 目前对植物盐耐受机制的理解正在进步,但需要进一步研究.
- 使用GWAS,转录组学和基因组编辑等先进技术的未来研究对于提高植物对盐度的抵抗力至关重要.
相关概念视频
Responses to Salt Stress
12.8K
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.
12.8K
Responses to Heat and Cold Stress
13.3K
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.
13.3K
Responses to Drought and Flooding
10.5K
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.
10.5K
Tonicity in Plants
27.2K
Plant cells maintain appropriate osmotic balance in extreme conditions. For instance, plants in dry environments store water in vacuoles, limit the opening of their stoma, and have thick, waxy cuticles to prevent unnecessary water loss. Some species of plants that live in salty environments store salt in their roots. As a result, water osmosis occurs in the root from the surrounding soil.
Tonicity
Tonicity describes the capacity of a cell to lose or gain water depending on the solute...
Tonicity
Tonicity describes the capacity of a cell to lose or gain water depending on the solute...
27.2K
Adaptations that Reduce Water Loss
25.0K
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.
25.0K
Photosystem II
69.5K
The multi-protein complex photosystem II (PS II) harvests photons and transfers their energy through its bound pigments to its reaction center, and ultimately to photosystem I (PSI) through the electron transport chain. The pigments responsible for caputirng the light energy in photosystems include chlorophyll a, chlorophyll b, and carotenoids.
The pigment molecules are arranged across two photosystem domains — the antenna complex and the reaction center. The main aim of the pigment...
The pigment molecules are arranged across two photosystem domains — the antenna complex and the reaction center. The main aim of the pigment...
69.5K


