在玉米中发现的一条非传统的氨酸氨胺通路
Nan Lu1, Ji Hyung Jun1,2, Ying Li1
1BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, TX, 76203, USA.
Nature communications
|July 19, 2023
概括
玉米具有功能性益西安丁 (PA) 生物合成途径,产生独特的PA前体和二元体. 引入特定的基因激活了PA的产生,这表明了保留的调节机制和农业潜力.
科学领域:
- 植物生物化学 植物生物化学
- 分子遗传学 分子遗传学
- 农业科学 农业科学
背景情况:
- 普罗安托西亚尼丁 (PA) 是具有健康和营养益处的黄类聚合物.
- 玉米产生的安托西亚宁和关键酶安托西亚尼丁减少酶 (ANR),但PA积累的证据是有限的.
研究的目的:
- 调查玉米中PA生物合成途径的存在和功能.
- 描述内源PA前体,并确定调节玉米中PA生物合成的因素.
主要方法:
- 分析化学技术用于识别PA化合物.
- 基因方法包括基因表达和通路激活研究.
主要成果:
- 玉米内源性PA机器产生 (+) - 史基甲和4β-(S-cysteinyl) - 甲.
- 大豆ANR1表达增强在玉米种子中的特定PA衍生物.
- 子SbTT2激活了玉米中的氨酸和PA通路,表明调节得到保护.
结论:
- 玉米有一个功能性的,尽管有分歧的,PA生物合成途径.
- 跨物种存在PA生物合成的保护性调节机制.
- 这些发现为玉米中PA的农业应用提供了潜力.
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