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Updated: Jul 12, 2025

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Detection of Histone Modifications in Plant Leaves
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AcbHLH144转录因子负面调节生物合成以调节的内部色
Qian Li1, Guang Wang1, Ling Zhang1
1Guangdong Province Key Laboratory of Postharvest Physiology and Technology of Fruit and Vegetables, College of Horticulture, South China Agricultural University, Guangzhou 510642, China.
Horticulture research
|October 30, 2023
概括
的转录因子AcbHLH144抑制了生物合成,减少了内部色. 酸 (ABA) 激活AcbHLH144,为管理收获后水果质量提供了一个新的策略.
科学领域:
- 植物生理学 植物生理学
- 分子生物学分子生物学
- 收获后生物学 收获后生物学
背景情况:
- 内部色 (IB) 是中一个重要的收获后疾病,其分子机制尚不清楚.
- 基本螺旋环-螺旋环 (bHLH) 转录因子调节植物发育,但它们在水果色中的作用尚不清楚.
研究的目的:
- 研究bHLH转录因子在内部色中的作用.
- 确定涉及收后品质的类生物合成的关键调节者.
主要方法:
- 有IB和没有IB的的基因表达分析 (转录组学).
- 基因克隆,亚细胞局部化,以及和阿拉比多普西斯中的过度过时表达.
- 酵母的一混合,电泳移动性转移和双露西法酶记者测试以确定基因相互作用.
- 酸 (ABA) 治疗及其对基因表达和IB的影响.
主要成果:
- *AcbHLH144*高度表达,在IB下调,与生物合成基因负相关.
- 过度表达AcbHLH144通过直接抑制*Ac4CL5*转录而降低了生物合成.
- ABA缓解了IB,减少了化合物,并提高了*AcbHLH144*表达的调节,这表明ABA激活了AcbHLH144.
结论:
- AcbHLH144通过抑制*Ac4CL5*转录,作为生物合成的抑制剂,从而调节IB.
- 由ABA诱导的AcbHLH144激活提供了一种潜在的策略来控制收获后的棕色化.
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