调节运输以增加植物中的非生物应激耐受性
Jose M Mulet1, Rosa Porcel1, Lynne Yenush1
1Instituto de Biología Molecular y Celular de Plantas, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Valencia, Spain.
Journal of experimental botany
|August 23, 2023
概括
保持植物细胞的功能和活力依赖于稳定的平衡. 了解如何修改运输基因可以提高植物对干旱和度等环境压力的耐受性.
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:
- 是植物细胞离子平衡的关键,对细胞功能和整体活力至关重要.
- 植物面临着诸如盐度和干旱等环境挑战,这些挑战会破坏离子平衡,影响诸如透气等重要过程.
- 虽然已经确定了参与平衡的关键蛋白质,但它们的调节和与其他信号通路的相互作用仍然是积极研究的领域.
研究的目的:
- 审查目前对影响植物平衡的遗传修饰如何影响对非生物压力的耐受性的理解.
- 探索植物中平衡调节背后的分子机制.
- 突出基因工程和育种技术的潜力,通过向运输来增强植物的耐压能力.
主要方法:
- 审查现有的科学文献和测序数据.
- 分析与植物通道和运输器相关的功能基因组学研究.
- 检查对基因修饰对整个植物非生物应激耐受性的影响的研究.
主要成果:
- 确定了已知的蛋白质,直接参与维持植物平衡.
- 强调流在透气和植物对各种环境压力 (热,寒,氧化应激) 的反应中的关键作用.
- 建立了对平衡调节的知识与工程增强非生物应激耐受性的潜力之间的联系.
结论:
- 修改与平衡相关的基因为开发对非生物压力的耐受性提高的作物提供了一个有希望的战略.
- 进一步研究调节运输蛋白及其与信号通路的交叉交谈是必不可少的.
- 通过基因工程和育种利用这些知识,可以在充满挑战的环境中产生更具弹性和生产力的植物.
相关概念视频
02:02Responses to Salt Stress
13.2K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.2K
02:45Responses to Heat and Cold Stress
13.6K
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.
13.6K
02:04Regulation of Transpiration by Stomata
28.4K
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.
28.4K
02:41Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K
02:12Short-distance Transport of Resources
16.1K
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.
16.1K
01:57Adaptations that Reduce Water Loss
25.7K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.7K