一个分层的VvbHLH30-VvERF70-VvACS2模块在葡萄藤中编排乙烯生物合成和冷适应
Yujun Hou1, Darren C J Wong2, Lina Wang3
1State Key Laboratory of Plant Diversity and Specialty Crops/Sino-Africa Joint Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.
Plant biotechnology journal
|March 16, 2026
概括
葡萄树根利用一个VvbHLH30-VvERF70-VvACS2模块来促进乙烯的生产,以适应寒冷. 这一发现增强了对植物耐寒性的理解,并提供了防止伤害的策略.
科学领域:
- 植物生物学 植物生物学
- 分子遗传学 分子遗传学
- 农业科学 农业科学
背景情况:
- 乙烯是一种重要的植物激素,调节植物生长和应激反应.
- 乙烯生物合成和调节植物适应寒冷的机制尚未完全理解.
研究的目的:
- 阐明控制葡萄树寒冷适应的与乙烯相关的监管网络.
- 为了确定关键的基因和转录因子参与葡萄酒对寒冷压力的反应.
主要方法:
- 在葡萄中对ACS基因家族进行全基因组分析.
- 为了功能验证VvACS2,VvERF70和VvbHLH30.的CRISPR-Cas9基因编辑和过度表达.
- 在寒冷压力下分析基因表达和蛋白质相互作用.
主要成果:
- 鉴定出VvACS2是葡萄树根中冷诱导的乙烯生物合成的主要贡献者.
- 确定了VvERF70和VvbHLH30作为直接调节VvACS2表达的转录因子.
- 复合体VvbHLH30-VvERF70增强了VvACS2的诱导,促进了乙烯的产生和耐寒性.
结论:
- 涉及VvbHLH30,VvERF70和VvACS2的层次转录调节网络对于葡萄树寒冷耐受性至关重要.
- 该模块在冷应力下的乙烯生物合成中发挥着关键作用.
- 结果提供了关于植物适应寒冷的见解,以及对减轻作物伤害的潜在策略.
相关概念视频
Regulation of Transpiration by Stomata
32.0K
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.
32.0K
Responses to Heat and Cold Stress
15.6K
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.
15.6K
Plant Hormones
28.2K
Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
28.2K
Plant Hormones
6.5K
6.5K
Cell Signaling in Plants
6.9K
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...
6.9K
Introduction to Plant Diversity
50.1K
From Water to Land
50.1K


