一个VIIIa组的乙烯反应因子,CmERF4,可以负面调节香花的浸水耐受性
Chuanwei Li1, Likai Wang1, Jiangshuo Su1
1State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Zhongshan Biological Breeding Laboratory, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration. College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China.
Journal of experimental botany
|November 12, 2023
概括
花花 (Chrysanthemum) 是一种花.
科学领域:
- 植物科学 植物科学
- 分子生物学分子生物学
- 压力生理学 压力生理学
背景情况:
- 乙烯反应因子 (ERF) 对植物应激反应至关重要.
- 关于ERF VIII成员在水浸耐受性方面的具体作用基本上是未知的.
研究的目的:
- 为了研究ERF VIIIa基因CmERF4的功能和机制,在水浸压力下的花.
- 阐明CmERF4在调节植物对浸水的耐受性方面的作用.
主要方法:
- 在花中进行基因表达分析 (RT-qPCR,RNA-seq).
- 在烟草叶中的亚细胞局部化.
- 酵母二杂交和光酶对转录活性进行测试.
- 在莉花的过度表达研究.
主要成果:
- CmERF4的表达是由浸水诱导的,它作为转录抑制剂.
- 过度表达CmERF4会降低水浸耐受性,而CmERF4-VP64会提高耐水耐受性.
- 转录组分析揭示了能量代谢和活性氧物种 (ROS) 途径的差异调节.
结论:
- CmERF4 负面调节花的浸水耐受性.
- 这种调节涉及能量代谢和ROS通路基因的调节.
相关概念视频
Responses 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
Adaptations that Reduce Water Loss
25.6K
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.
25.6K
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
C4 Pathway and CAM
45.6K
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...
45.6K
Responses to Heat and Cold Stress
13.5K
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.
13.5K
Responses 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


