第七组乙烯反应因子形成不同的调节环,调节潜水反应
Pao-Yuan Hsiao1, Cyong-Yu Zeng1, Ming-Che Shih1
1Agricultural Biotechnology Research Center, Academia Sinica, Taipei 115, Taiwan.
Plant physiology
|October 14, 2023
概括
第七组乙烯反应因子 (ERFVII) 调节植物对低氧的反应. 这项研究揭示了Brachypodium distachyon中的特定ERFVII基因如何协调以提高潜水耐受性,为作物改进提供了洞察力.
科学领域:
- 植物生物学 植物生物学
- 遗传学 遗传学 是一个
- 进化生物学 进化生物学
背景情况:
- 第七组乙烯反应因子 (ERFVII) 对于植物适应低氧和潜水至关重要.
- 它们的稳定性受到氧气水平的调节,这影响了像Arabidopsis和大米这样的植物中的基因表达.
研究的目的:
- 为了研究Brachypodium distachyon ERFVII基因 (BdERFVIIs) 在潜水耐受性中的作用.
- 了解谷物作物的洪水耐受性的进化机制.
主要方法:
- 对BdERFVII基因功能和相互作用的分析.
- 确定涉及BdERFVII和下游基因的监管反循环.
- 与大米正义学家进行比较分析 (OsERF67).
主要成果:
- 三个BdERFVII (BdERF108,BdERF018,BdERF961) 形成一个反循环,调节潜水反应.
- BdERF108和BdERF018激活BdERF961和PHYTOGLOBIN 1 (PGB1),促进氧化的循环和ERFVII的稳定性.
- BdERF961 负面调节 PGB1 的表达,从而创建一个反机制. 的正统物质OsERF67形成了不同的监管循环.
结论:
- 布拉基波迪乌斯利用一个复杂的反调节循环,涉及ERFVIIs,以实现潜水耐受性.
- 在ERFVII的不同监管机制提供了对洪水耐受性演变的见解.
- 这些发现为开发耐浸沉作物提供了潜在的策略.
相关概念视频
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
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
Regulation of Transpiration by Stomata
28.3K
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.
28.3K
Stringent Response in E. coli
17
Bacterial growth is closely tied to nutrient availability, with cells proliferating exponentially under favorable conditions and entering a stationary phase when resources become scarce. This transition is mediated by a regulatory mechanism known as the stringent response, which allows bacteria to adapt to nutrient deprivation by modulating gene expression and metabolic activity.During nutrient scarcity, intracellular amino acid levels decline. It results in the accumulation of uncharged tRNAs...
17
Regulation of the Unfolded Protein Response
2.4K
Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...
2.4K
Global Regulatory Systems
29
Global regulatory systems in bacteria enable rapid and coordinated responses to environmental changes by integrating sensory inputs with gene expression, ensuring efficient adaptation to fluctuating conditions. Key global regulatory mechanisms include regulons, two-component systems, sigma factors, and secondary messengers.Regulons and Global RegulatorsA regulon is a collection of genes and operons controlled by a common global regulator. These regulators enable bacteria to prioritize resource...
29


