通过对贝他林色素的代谢工程产生彩色的胡卜生殖质
Yuan-Jie Deng1, Ao-Qi Duan1, Hui Liu1
1National Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China.
Horticulture research
|October 3, 2023
概括
工程胡卜现在产生充满活力的贝他林色素,提供潜在的健康益处和新鲜的颜色. 这项研究突出了贝他林生产中的瓶,并创造了独特的胡卜表型.
科学领域:
- 植物生物化学 植物生物化学
- 代谢工程是代谢工程.
- 食品科学 食品科学 食品科学
背景情况:
- 贝塔林是Caryophyllales中发现的植物颜料,被分类为betacyanins (红紫色) 和betaxanthins (黄色色).
- 这些颜料由于其简单的生物合成,鲜的颜色和促进健康的特性而具有科学和经济意义.
研究的目的:
- 为贝他林生产而设计胡卜的树根,创造出独特的颜色调板.
- 调查贝他林生物合成途径中的潜在瓶问题.
- 开发用于功能性食品应用的新型胡卜生殖质.
主要方法:
- 在胡卜中,关键的贝他林生物合成基因 (BvCYP76AD1,BvDODA1) 和一个甘氨酸转移酶基因 (MjcDOPA5GT) 的同时表达.
- 用 p35S:RUBY 构造物转化胡卜树根,以实现最大的贝他林合成.
- 对人工制造胡卜的贝他林含量和表型变化的分析.
主要成果:
- 改造的胡卜产生了一系列颜色,其最大的贝他林总含量达到943.2μg·g−1 DW.
- 根特异性贝他林的生产表明了对氨酸消费的潜在瓶.
- 血管变体特异性贝他林生产导致了独特的火山类表型.
结论:
- 胡卜的成功工程化为贝他林生产提供了一个功能性的蔬菜,具有增强的营养价值.
- 该研究确定了贝他林生物合成的潜在限制因素,指导了未来的代谢工程工作.
- 贝塔林强化的胡卜作为有价值的生殖质,用于旨在开发多彩和健康品种的育种计划.
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