双GATA 调节器对 ABA 恒温度介导的树木桃花的芽休眠
Ziwen Geng1, Chunyan He1, Fangting Qi1
1State Key Laboratory of Efficient Production of Forest Resources, National Engineering Research Center for Floriculture, Peony International Institute, School of Landscape Architecture, Beijing Forestry University, Beijing, China.
Plant, cell & environment
|January 29, 2026
概括
两个GATA转录因子,Plgata1和Plgata6,对控制树花的芽休眠作用具有敌对作用. 它们微调酸 (ABA) 水平,为改善季外栽培提供目标.
科学领域:
- 植物分子生物学 植物分子生物学
- 植物生理学 植物生理学
- 转录法规 转录法规
背景情况:
- 芽休眠是限制树生长和非季节种植的关键因素.
- 已知GATA转录因子调节种子休眠,但它们在芽休眠中的作用尚不清楚.
研究的目的:
- 为了研究GATA转录因子在调节树树芽休眠期中的作用.
- 为了确定涉及酸 (ABA) 信号通路控制休眠状态的特定GATA因素.
主要方法:
- 树中GATA基因家族的表征.
- 在休眠和非休眠芽中分析PlGATA1和PlGATA6表达模式.
- 在阿拉比多普西斯的异质表达和树的短暂转换试验.
- 在体内和体内促进剂结合试验.
主要成果:
- PlGATA1和PlGATA6表现出对抗性的表达模式,其中PlGATA1被诱导,PlGATA6被ABA抑制.
- PlGATA1增强了种子休眠性,而PlGATA6则抑制了它在Arabidopsis.
- 过度表达PlGATA1或沉默PlGATA6诱导了树中的芽休眠.
- PlGATA1激活了PlaBI5促进体,而PlGATA6激活了PlCYP707A2-1促进体.
结论:
- PlGATA1 和 PlGATA6 形成一个对抗模块,调节 ABA 稳态.
- 这种转录模块作为一个分子开关,控制树的芽休眠状态.
- 研究结果提供了对芽休眠期调节的见解,以及非季节种植的潜在策略.
相关概念视频
The Tree of Life - Bacteria, Archaea, Eukaryotes
38.4K
The “tree of life” describes the evolution of life and the evolutionary relationships between organisms. The root of the tree is the common ancestor to all life on Earth. All other species radiate from this point, much like the branches of a tree. The numerous tips of these branches on the tree of life represent every living, or extant, species. Extinct species, which are species that no longer exist, can be found towards the center of the tree. Currently, these organisms, both...
38.4K
Survival Tree
423
Survival trees are a non-parametric method used in survival analysis to model the relationship between a set of covariates and the time until an event of interest occurs, often referred to as the "time-to-event" or "survival time." This method is particularly useful when dealing with censored data, where the event has not occurred for some individuals by the end of the study period, or when the exact time of the event is unknown.
Building a Survival Tree
Constructing a...
Building a Survival Tree
Constructing a...
423
Phylogenetic Trees
49.6K
Phylogenetic trees come in many forms. It matters in which sequence the organisms are arranged from the bottom to the top of the tree, but the branches can rotate at their nodes without altering the information. The lines connecting individual nodes can be straight, angled, or even curved.
49.6K
The Bronchial Tree
6.7K
The human bronchi and bronchial tree play a crucial role in the respiratory system, facilitating the exchange of oxygen and carbon dioxide. Let's delve into the intricate structure and functions of these respiratory components.
The trachea, commonly known as the windpipe, is a tube that connects the larynx (voice box) to the bronchi. At a point called the carina, it bifurcates into two primary bronchi. The right primary bronchus is wider, shorter, and more vertical than the left primary...
The trachea, commonly known as the windpipe, is a tube that connects the larynx (voice box) to the bronchi. At a point called the carina, it bifurcates into two primary bronchi. The right primary bronchus is wider, shorter, and more vertical than the left primary...
6.7K
The Tongue and Taste Buds
41.0K
The surface of the tongue is covered with various small bumps called papillae, which either distribute what has been ingested (filiform papillae) or contain the sensory taste (or gustatory) receptor cells (fungiform, circumvallate, and foliate papillae). Embedded within each taste-related papilla are the taste buds—clusters of 30 to 100 gustatory receptor cells.
41.0K
Regulated Protein Degradation
8.8K
It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
8.8K


