利用Setaria作为C4植物适应非生物压力的模型
Juan David Ferreira Gomes1, João Marcos Fernandes-Esteves1, João Travassos-Lins1
1Laboratório de Genética Molecular e Biotecnologia Vegetal, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-853, RJ, Brazil.
Plants (Basel, Switzerland)
|December 31, 2025
概括
气候变化导致通过非生物压力造成农业损失. 本综述探讨了C4植物,特别是Setaria物种如何应对这些压力,为气候适应性作物提供了见解.
科学领域:
- 植物科学 植物科学
- 农业科学 农业科学
- 气候变化生物学 气候变化生物学
背景情况:
- 气候变化带来的非生物压力导致全球农业遭受重大损失.
- C4植物对于全球粮食安全和经济稳定至关重要.
- 了解植物对非生物压力的反应对于作物改善至关重要.
研究的目的:
- 审查和整合关于C4单种植物 (Setaria viridis和Setaria italica) 对各种非生物压力的反应的发现.
- 阐明植物适应环境挑战背后的生理,生化和分子机制.
- 为了比较野生原始物种 (S. viridis) 和养物种 (S. italica) 之间的应激反应.
主要方法:
- 文献综述整合了形态生理学,转录基因和代谢数据.
- 在S. viridis和S. italica.中对压力反应途径的比较分析.
- 专注于对干旱,热,高光,盐度,营养缺乏和重金属的反应.
主要成果:
- 塞塔利亚物种在应对多种非生物压力时表现出保存和分离的途径.
- 形态生理学,转录基因和代谢数据揭示了适应机制.
- S. viridis 和 S. italica 作为研究非生物应激耐受性的有效模型.
结论:
- 塞塔利亚物种是有价值的C4模型,用于理解非生物应激耐受机制.
- 这些发现凸显了塞塔利亚作为一种开发适应气候变化的作物遗传资源的潜力.
- 在塞塔里亚进行进一步的研究可以帮助创造更好的谷物和生物能源作物.
相关概念视频
Adaptations that Reduce Water Loss
27.8K
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.
27.8K
C4 Pathway and CAM
48.5K
Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
The C4 pathway is used by plants such as...
C4 Pathway
The C4 pathway is used by plants such as...
48.5K
Responses to Salt Stress
14.2K
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.
14.2K
Responses 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
Responses to Drought and Flooding
11.9K
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.
11.9K
Regulation 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


