植物中酸盐吸收,同化和信号的进化动态:适应不断变化的环境
Xiaojia Zhang1, Shufeng Bai1, Hui Min1
1College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning Province, China.
Physiologia plantarum
|January 21, 2025
概括
植物进化了复杂的酸盐 (N) 吸收和信号系统. 深海藻类显示出高亲和度酸盐的吸收,而陆地植物则开发出低亲和度系统和复杂的信号传递,用于陆地生物.
科学领域:
- 植物生物学 植物生物学
- 进化生物学 进化生物学
- 生物化学 生物化学
背景情况:
- 对于植物生长至关重要,并充当信号分子.
- 酸盐的吸收,同化和信号传递在模型植物中得到了很好的研究,但它们的进化起源尚不清楚.
- 了解这些途径的演变是植物适应的关键.
研究的目的:
- 研究植物中酸盐吸收,同化和信号组成部分的进化起源和多样化.
- 追踪这些系统的发展,从藻类到陆地植物.
- 了解在不同环境中酸盐利用的适应性策略.
主要方法:
- 对比基因组学和遗传学分析.
- 追踪关键酸盐运输和同化基因的进化历史.
- 分析酸盐信号通路的逐步演变.
主要成果:
- 深海藻类具有高 afinity 运输系统 (HATS) 和一个完整的酸盐同化路径 (NR-NiR-GS-GOGAT).
- 低亲和传输系统 (LATS) 和塑GS分别在陆地和种子植物的祖先中进化.
- 涉及NRT1.1和NLP7的酸盐信号逐渐演变,在植物中早期调节.
结论:
- 植物的酸盐利用和信号逐步演变,藻类和陆地植物有明显的适应.
- 这些进化适应在地球化过程中促进了植物在不同酸盐环境中的生存和生长.
- 这项研究揭示了植物必需营养管理和信号系统的深层进化根源.
相关概念视频
Key Elements for Plant Nutrition
18.6K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.6K
Overview of Nitrogen Metabolism
7.8K
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
7.8K
Short-distance Transport of Resources
15.6K
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.
15.6K
The Roles of Bacteria and Fungi in Plant Nutrition
34.9K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
34.9K
Overview of Metabolism
29.5K
Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
29.5K
The Nitrogen Cycle
51.5K
Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...
51.5K


