在Nardostachys jatamansi中高效的再生和转化系统用于功能基因组学和生物活性化合物丰富
Shubham Joshi1,2, Jhilmil Nath1,2, Jayram Bagri3
1CSIR-Institute of Himalayan Bioresource Technology, Palampur, India.
Plant, cell & environment
|October 30, 2025
概括
这项研究优化了Nardostachys jatamansi的微传播和由Agrobacterium介导的转化,增强了生物活性化合物. 综合平台支持这种危植物的可持续保护和遗传改进.
科学领域:
- 植物生物技术 植物生物技术
- 保护生物学 保护生物学
- 代谢学 代谢学 代谢学
背景情况:
- 微繁殖对于保护危植物和改善代谢物产量至关重要.
- 通过代谢物分析来评估生物化学忠实性对于再生植物至关重要.
- 纳尔多斯塔奇斯·贾塔曼西 (Nardostachys jatamansi) 是一个临灭绝的药用植物,需要高效的繁殖和遗传工具.
研究的目的:
- 为Nardostachys jatamansi开发一个高效的体外再生协议.
- 为了优化Agrobacterium tumefaciens介导的转化,用于基因操纵.
- 整合微传播,转化和代谢物分析,以提高生物活性化合物生产和遗传研究.
主要方法:
- 使用不同度的TDZ和NAA,并优化温度,诱导和射击再生.
- 气色谱-质谱 (GC-MS) 用于再生组织与母植物的代谢物概况.
- 通过Agrobacterium tumefaciens调节的转化优化 (菌株比较,OD600,感染时间,共同培养) 进行过渡表达和病毒诱导的基因沉默 (VIGS).
主要成果:
- 用1.5毫克/升的TDZ和1毫克/升的NAA进行最佳的诱导 (93.33%),用1.5毫克/升的TDZ和0.1毫克/升的NAA在15°C时获得最高的再生效率 (68%) 和射击数量.
- 与母植物相比,GC-MS分析表明再生叶子中的初级和二级代谢物含量较高.
- 农业细菌菌株GV3101的转化效率 (43.33%) 比EHA105 (30%) 高. 优化过渡表达在OD600=0.6,4小时感染和3天共同培养下实现了高效率. VIGS有效地使NjPDS基因保持沉默.
结论:
- 为Nardostachys jatamansi建立了一个高效的微传播协议.
- 一个优化的Agrobacterium介导的转化系统被开发用于遗传研究和操纵.
- 综合平台提供了一种可扩展的方法,用于增强N. jatamansi中的生物活性化合物和遗传资源,用于保护和制药应用.
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