外源的24-Epibrassinolide增强了干旱耐受性,并促进了昆的BRASSINOSTEROID-INSENSITIVE2表达
Ya-Li Zhou1, Xin-Yong You1, Xing-Yun Wang1
1College of Biological and Food Engineering, Anyang Institute of Technology, Anyang 455000, China.
Plants (Basel, Switzerland)
|April 9, 2024
概括
铜类固醇 (BRs) 通过改善根生长和抗氧化活性,增强昆的干旱耐受性. 该研究强调了CqBIN2在干旱压力下调解这些有益影响的关键作用.
科学领域:
- 植物科学 植物科学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 铜类固醇 (BRs) 是重要的植物激素,调节生长和应激反应.
- 豆中BRs减轻干旱压力的具体机制在很大程度上仍未被探索.
研究的目的:
- 阐明基因中BR介干旱应激缓解的分子机制.
- 调查CqBIN2在昆对干旱压力和外源BR处理的反应中的作用.
主要方法:
- 对于CqBIN2.2,花苗使用24-epibrassinolide (EBR) 和基因沉默技术 (VIGS) 进行了治疗.
- 分析了生理学参数,抗氧化酶活性,氧化物含量和基因表达.
- 使用了转录组分析和权重基因同表达网络分析 (WGCNA).
主要成果:
- EBR治疗显著改善了根生长,抗氧化能力和氧化剂积累,同时减少了氧化损伤.
- 转录组分析揭示了许多与干旱压力相关的差异表达基因 (DEGs).
- EBR上调调节了CqBIN2和普罗林生物合成基因;CqBIN2沉默降低了干旱耐受性和普罗林水平.
结论:
- 外源性黄铜类固醇 (BRs) 有效地提高了米的干旱耐受性.
- CqBIN2在调解BR诱导的干旱耐受性方面发挥着重要作用,可能是通过proline生物合成途径.
相关概念视频
Responses to Salt Stress
13.1K
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.
13.1K
Responses to Drought and Flooding
10.7K
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.
10.7K
Adaptations that Reduce Water Loss
25.5K
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.
25.5K
Plant Breeding and Biotechnology
18.9K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
18.9K
Cell Signaling in Plants
5.6K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
5.6K


