SlWRKY75作为差分调节剂,增强西红 (Solanum lycopersicum L.) 的耐旱性
Wei Zhang1, Ying Fu2, Meng Li1
1Plant Biotechnology Research Center, Fudan-SJTU-Nottingham Plant Biotechnology R&D Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang, Shanghai, 200240, China.
Plant physiology and biochemistry : PPB
|June 27, 2025
概括
研究人员确定了一种转录因子 (TF),SlWRKY75,它增强了番茄的干旱耐受性. 突变者表现出改善的根生长,保留水分和光合作用,以及通过减少三体来改善水果质量.
科学领域:
- 植物生物学 植物生物学
- 遗传学 是一个遗传学.
- 农业科学 农业科学
背景情况:
- 干旱压力对全球粮食安全构成重大威胁,需要提高作物弹性.
- 了解植物特异性转录因子 (TF) 对于开发耐旱作物至关重要.
研究的目的:
- 确定和描述SlWRKY75转录因子在番茄干旱耐受性中的功能.
- 调查SlWRKY75在干旱压力下调节地面和地下植物组织中的作用.
主要方法:
- 使用CRISPR/Cas9基因编辑生成SlWRKY75突变番茄系.
- 在干旱条件下进行了生理和生化分析 (相对水含量,叶绿素含量,光合作用效率,CAT活性,MDA水平).
- 进行了基因表达分析 (qRT-PCR) 和分子相互作用研究 (Y1H,双LUC).
主要成果:
- SlWRKY75突变体表现出显著增强的干旱耐受性,其特点是增加横向根部发育,更高的水含量,改善光合作用和减少氧化损伤.
- 突变系显示水果三体密度降低,导致收获后水损失减少和水果质量改善.
- 发现SlWRKY75直接结合并抑制SlarF5和SlTRY的表达,调节植物组织中的差异调节.
结论:
- SlWRKY75在调节干旱耐受性方面发挥了双重作用,影响了植物生长和水果特性.
- 针对SlWRKY75提供了一个有前途的策略,用于培育耐旱的番茄品种,提高产量和收获后稳定性.
- 了解组织特异性TF功能为开发适应气候的农业提供了洞察力.
关键词:
耐旱耐受性 耐旱耐受性 耐旱耐受性侧根 侧根 侧根索拉 (Solanum lycopersicum) L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L 这一篇文章中提到的原因可能是因为它是因为它是因为它是因为它是因为它是因为它是因为它是三合体是三合体的这就是WRKYY.
相关概念视频
02:04Regulation of Transpiration by Stomata
29.2K
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.
29.2K
01:57Adaptations that Reduce Water Loss
26.4K
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.
26.4K
01:26Regulation of Water Output
1.1K
The human body predominantly expels water through the urinary system. On average, an individual generates around 1.5 liters of urine each day. This amount can fluctuate based on how well a person is hydrated, but a critical minimum quantity of urine must be produced to ensure the body's proper functioning. Daily, the kidneys remove 600 to 1200 milliosmoles of dissolved substances, effectively excreting excess minerals and water-soluble toxins such as creatinine, urea, and uric acid from the...
1.1K
01:17Gene Regulation During Sporulation
85
Sporulation is a complex developmental process that allows certain Gram-positive bacteria, such as Bacillus subtilis and Clostridium species, to survive extreme environmental conditions. This process is tightly regulated by a series of signaling cascades and transcriptional controls, ensuring the formation of a highly resistant endospore.Sporulation is triggered by unfavorable conditions, such as nutrient depletion, and is governed by a phosphorelay system. One of the sensor kinases, such as...
85
01:25Cell Signaling in Plants
5.8K
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...
5.8K