HY5:植物通过光介导吸收和利用营养素的关键调节器
Samriti Mankotia1, Pooja Jakhar1, Santosh B Satbhai1
1Department of Biological Sciences, Indian Institute of Science Education and Research (IISER), Mohali, SAS Nagar, Punjab, 140306, India.
The New phytologist
|January 5, 2024
概括
转录因子HY5 (延长型HYPOCOTYL5) 对植物如何使用光来吸收和处理营养是至关重要的. 这次审查突出了HY5的重点.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 光信号对于植物的营养吸收和同化至关重要.
- 转录因子HY5 (HY5) 是光反应的关键调节者.
- HY5影响许多生理过程,包括营养的恒温.
研究的目的:
- 审查了解HY5在依赖光的营养素吸收和利用中的作用的最新进展.
- 阐明由HY5介导的光信号影响植物营养管理的分子机制.
主要方法:
- 关于HY5和植物营养信号的最新研究的文献综述.
- 分析与参与营养物质运输的HY5标相关的基因表达数据.
- 整合了关于光受体调节HY5活动的发现.
主要成果:
- HY5直接激活了对多种营养素 (N,Fe,S,P,Cu) 的吸收和同化至关重要的基因.
- HY5作为光信号的中心集成器,用于营养管理.
- 光受体调节HY5活动,将光感知与营养反应联系起来.
结论:
- HY5是一个主调节器,将光信号连接到植物的营养吸收和利用.
- 了解HY5的功能可以提高人们对植物如何根据光线的可用性来适应营养策略的了解.
- 针对HY5路径可以提供改善植物营养和作物产量的策略.
相关概念视频
Photoreceptors and Plant Responses to Light
20.4K
Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
20.4K
Key Elements for Plant Nutrition
18.8K
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...
18.8K
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
Channel Rhodopsins
2.6K
Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
2.6K
The Antenna Complex
6.0K
Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency...
6.0K
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


