相关实验视频
Updated: Jun 28, 2025

09:23
Lateral Root Inducible System in Arabidopsis and Maize
Published on: January 14, 2016
13.8K
AtHD2D参与调节横向根部发育,并参与Arabidopsis中的非生物应激反应
Yueyang Chu1, Ruochen Duan1, Haoran Song1
1College of Life Science, Northwest A & F University, Yangling, Shanxi, 712100, China.
Journal of plant physiology
|April 13, 2024
概括
组织素脱乙酶AtHD2D调节了Arabidopsis的根部发育和微环境恒温. 这种蛋白质通过促进侧向根生长来增强非生物应激抵抗力,可能由活性氧物种 (ROS) 介导.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 根的发育对于植物的生存至关重要,并受到内部和外部信号的影响.
- 染色质修饰,包括基因素脱乙烯化,在植物发育中起着重要的调节作用.
- 基因组脱乙酶AtHD2D (HDAC家族的成员) 正在研究其在根部发育中的作用.
研究的目的:
- 为了探索质脱乙酶AtHD2D在根部发育中的潜在作用.
- 调查AtHD2D在Arabidopsis thaliana中的功能背后的分子机制.
- 为未来研究AtHD2D的生物过程奠定基础.
主要方法:
- 基因转录分析以评估AtHD2D对根尖微环境恒温的影响.
- 阿拉比多普西斯·塔利亚纳基因操纵 (例如,过度表达) 来研究横向根部发育.
- 测量反应性氧物种 (ROS) 在根中的积累.
主要成果:
- 在HD2D影响基因转录,保持根尖微环境恒常性.
- AtHD2D参与调节阿拉比多普西斯的横向根部发育,可能通过辅酶信号传递.
- 过度表达AtHD2D增强了非生物应激抵抗力,并促进了横向根部的发育.
- 过度表达AtHD2D导致根部反应性氧物种 (ROS) 积累的增加.
结论:
- AtHD2D在维护根尖微环境平衡和调节横向根部发育方面发挥着至关重要的作用.
- 通过促进横向根生长,AtHD2D增强了Arabidopsis thaliana中的非生物应激耐受性.
- 在ROS介导的横向根发育中AtHD2D的参与为植物根调节中的HDAC功能提供了新的见解.
相关概念视频
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
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
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
Regulation of Transpiration by Stomata
28.2K
During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.
28.2K
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
Short-distance Transport of Resources
16.0K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
16.0K

