"Metabolight":光谱如何塑造植物生长,发育和新陈代谢
Giulia Lauria1, Costanza Ceccanti1, Ermes Lo Piccolo2
1Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy.
Physiologia plantarum
|November 1, 2024
概括
光技术的创新,如发光二极管 (LED),允许精确控制光谱,以提高作物产量和质量. 这项技术也引起了人们对光污染的担忧.
科学领域:
- 植物科学 植物科学
- 园艺园艺 园艺园艺
- 环境科学环境科学
背景情况:
- 像发光二极管 (LED) 和专用片这样的光技术已经改变了作物生产.
- 光谱操纵影响植物生物质,大小,发育和新陈代谢.
- 特定的光波带与二次代谢物的积累有关,改善了园艺产品的质量.
研究的目的:
- 审查最近关于植物对光谱管理的反应的发现.
- 探索在作物生产中的应用以及光污染对城市树木的影响.
- 提出植物光调节的新视角.
主要方法:
- 关于植物光谱操纵的科学文献的综述.
- 对单色光,温室补充和覆盖膜的研究分析.
- 检查光污染对城市树木的影响以及潜在的缓解策略.
主要成果:
- 光谱管理显著影响植物形态解剖学,生理学和生物化学.
- LED 和专用片提供了提高作物产量和质量的工具.
- 路灯照明对城市树木代谢和生态系统服务构成风险.
结论:
- 定制光谱对于优化植物生长和二次代谢物生产至关重要.
- 需要创新的照明解决方案来减轻人工光对城市生态系统的负面影响.
- 对植物光调节的进一步研究有望为未来的应用提供希望.
相关概念视频
Photoreceptors and Plant Responses to Light
20.2K
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.
20.2K
Light as Energy
78.1K
The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
78.1K
Light Acquisition
8.4K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.4K
Biological Clocks and Seasonal Responses
34.6K
The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
34.6K
Energy Transfer in Chemical Reactions
7.9K
Chemical reactions require sufficient energy to cause the matter to collide with enough precision and force that old chemical bonds can be broken and new ones formed. In general, kinetic energy is the form of energy powering any type of matter in motion. Imagine a person building a brick wall. The energy it takes to lift and place one brick on top of another is the kinetic energy—the energy matter possesses because of its motion. Once the wall is in place, it stores potential energy.
7.9K
The Antenna Complex
5.9K
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...
5.9K


