分子理解由PAP1激活,并由2,4-二基酸调节的红色Artemisia annua细胞中的安托氨酸生物合成
Yilun Dong1,2, Mingzhuo Li1, Bryanna Cruz1
1Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA.
Planta
|September 5, 2023
概括
安托素颜料1 (PAP1) 的产生激活了Artemisia annua.中的安托素生物合成. 素2,4-二基酸 (2,4-D) 通过降低PAP1表达的调节来降低素的产量.
科学领域:
- 植物生物技术 植物生物技术
- 分子生物学分子生物学
- 药用植物研究 药用植物研究
背景情况:
- 阿尔特米西亚年是一种关键的抗疟疾作物.
- 已建立的红细胞培养过度表达了安东素颜料1 (PAP1) 的产生.
- 研究了PAP1驱动的氨酸生物合成的分子机制.
研究的目的:
- 在A. annua.中识别和表征安东素通路基因的促销者.
- 确定PAP1在激活这些促进体中的作用.
- 阐明 2,4-二二酸 (2,4-D) 对 PAP1 介导的酸产生的调节作用.
主要方法:
- 基因组挖掘和从A.annua.中进行促进体隔离.
- 对cis元素 (AC,G盒,MYB响应元素) 的序列分析.
- 双化酶测定促进体活性.
- 用不同度的2,4-D进行培养实验.
- 使用HPLC-qTOF-MS/MS进行安东素分析.
- 实时RT-PCR用于基因表达分析.
主要成果:
- 克隆了八个促进器;六个含有AC cis元素,六个含有G盒元素.
- PAP1显著增强了七个促进者的活性,证实了它在激活安托素通路基因中的作用.
- 不同度的2,4-D处理减少了的新鲜重量和酸盐含量,而不会改变形状.
- 实时RT-PCR揭示了2,4-D降低了PAP1转基因表达和关键的安托素通路基因的调节.
结论:
- PAP1 作为 A. annua. 中的安托氨酸生物合成基因的转录激活剂.
- 2,4-D通过抑制PAP1的表达来抑制安托素的产生,为代谢工程提供了洞察力.
- 这项研究为优化A.annua红细胞培养物中安东素生产提供了基础.
关键词:
2,4-D是什么意思? 2,4-D是什么意思?安托西亚宁生物合成辅助剂 辅助剂 辅助剂 辅助剂复杂的MBW复杂的MBW复杂的代谢工程是代谢工程.PAP1 的第一部分.这种病原体是pap1-D.更多相关视频
04:11Pattern-Triggered Oxidative Burst and Seedling Growth Inhibition Assays in Arabidopsis thaliana
Published on: May 21, 2019
13.2K
10:10Investigating Tissue- and Organ-specific Phytochrome Responses using FACS-assisted Cell-type Specific Expression Profiling in Arabidopsis thaliana
Published on: May 29, 2010
15.9K
相关概念视频
The Antenna Complex
6.0K
Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency...
6.0K
Biological Clocks and Seasonal Responses
34.7K
The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
34.7K
