相关实验视频
Updated: Feb 24, 2026

07:08
Detection of Histone Modifications in Plant Leaves
Published on: September 23, 2011
25.5K
希斯脱乙酶RcHDA19通过 (Rosa chinensis) 的RcHB52介导的根系结构调节干旱耐受性
Guohao Tang1, Meiyan Wang2, Boda Liu1
1College of Landscape Architecture and Forestry, Shandong Key Laboratory for Germplasm Innovation of Saline-alkaline Tolerant Grasses and Trees, Qingdao Agricultural University, Qingdao, 266109, Shandong, China.
The Plant journal : for cell and molecular biology
|February 22, 2026
概括
花植物 花植物
科学领域:
- 植物生物学 植物生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 压力生理学 压力生理学
背景情况:
- 干旱压力显著限制了植物的生长.
- 素乙化对植物应激反应至关重要.
- 干旱下的的表观遗传调节还不太清楚.
研究的目的:
- 调查干旱应对过程中基因组脱乙酶的作用.
- 确定参与水稀缺性耐受性的关键表观遗传调节者.
- 阐明中干旱应激适应的分子机制.
主要方法:
- 干旱压力应用和生理测量在中国.
- 基因素乙化和基因表达的分析 (RcHDA19,RcHB52).
- 基因沉默和过度表达实验以评估RcHDA19的功能.
主要成果:
- 干旱增加了组织素H3 / H4乙化,但降低了RcHDA基因的调节,包括RcHDA19.
- 在中,RcHDA19作为干旱耐受性的负调节剂.
- RcHDA19抑制RcHB52,从而激活根部发育基因 (RcWUS7,RcWOX14).
结论:
- RcHDA19在调节的干旱应激反应方面发挥着至关重要的作用.
- RcHDA19-RcHB52路径影响干旱下的根部发育.
- 涉及RcHDA19的表观遗传修饰是适应水资源短缺的关键.
更多相关视频
相关概念视频
Adaptations that Reduce Water Loss
28.3K
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.
28.3K
Responses to Drought and Flooding
12.2K
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.
12.2K
Regulation of Transpiration by Stomata
31.5K
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.
31.5K
Spreading of Chromatin Modifications
9.7K
The histone proteins in the nucleosomes are post-translationally modified (PTM) to increase or decrease access to DNA. The commonly observed PTMs are methylation, acetylation, phosphorylation, and ubiquitination of lysine amino acids in the histone H3 tail region. These histone modifications have specific meaning for the cell. Hence, they are called "histone code". The protein complex involved in histone modification is termed as "reader-writer" complex.
Writers
The writer...
Writers
The writer...
9.7K
Responses to Salt Stress
14.8K
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.
14.8K
Cell Signaling in Plants
6.7K
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...
6.7K

