植物血管网络的环境调节
Javier Agustí1, Noel Blanco-Touriñán1
1Instituto de Biología Molecular y Celular de Plantas (CSIC-Universitat Politècnica de València), 46022 Valencia, Spain.
Trends in plant science
|November 7, 2025
概括
植物血管系统通过分子机制适应环境压力. 了解这些途径是提高作物弹性和生物质生产的关键.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 生态生态学 生态生态学
背景情况:
- 植物血管系统对于运输和支至关重要.
- 血管解剖学有助于应激弹性.
- 将环境线索与血管发育联系在一起的机制尚不清楚.
研究的目的:
- 审查压力下血管可塑性的分子机制.
- 为了突出保护和特定物种的途径.
- 确定未来的研究方向.
主要方法:
- 对最近的进展进行文献综述.
- 分子机制的合成.
- 讨论尚未解决的问题.
主要成果:
- 血管可塑性是由各种非生物和生物压力 (温度,光,干旱,盐度,机械力,营养缺乏,病原体) 调节的.
- 既涉及保存的,也涉及特定物种的分子通路.
- 植物整合多种压力因素的策略尚未完全阐明.
结论:
- 了解压力诱导的血管可塑性至关重要.
- 单细胞奥米克和基因组编辑可以解码适应性策略.
- 这些知识对作物弹性和可持续生物质有影响.
相关概念视频
02:04Regulation of Transpiration by Stomata
30.8K
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.
30.8K
02:12Short-distance Transport of Resources
17.4K
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.
17.4K
01:24Regulation of Angiogenesis and Blood Supply
3.3K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
3.3K
02:03Xylem and Transpiration-driven Transport of Resources
26.2K
The xylem of vascular plants distributes water and dissolved minerals that are taken up by the roots to the rest of the plant. The cells that transport xylem sap are dead upon maturity, and the movement of xylem sap is a passive process.
26.2K
02:19Morphogenesis
30.2K
Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
30.2K
02:45Responses to Heat and Cold Stress
14.6K
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.
14.6K