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首页> 外文期刊>Acta Physiologiae Plantarum >Genetic transformation of Gentiana dahurica Fisch by Agrobacterium tumefaciens using zygotic embryo-derived callus
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Genetic transformation of Gentiana dahurica Fisch by Agrobacterium tumefaciens using zygotic embryo-derived callus

机译:利用合子胚性愈伤组织通过根癌土壤杆菌对秦transformation进行遗传转化

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摘要

Gentiana dahurica Fisch is one of four important commercial Radix Gentianae stipulated by the Chinese Pharmacopoeia. We have established a rapid and effective regeneration system using zygotic embryo-derived callus of G. dahurica Fisch. Using this regeneration system, Agrobacterium tumefaciens-mediated transformation of G. dahurica Fisch has been developed. Zygotic embryo-derived callus was infected with an A. tumefaciens strain (GV3130) harboring a pBI121 vector that contained an nptII selective marker gene. In a total of 60 zygotic embryo-derived calli assayed, frequency of calli with nptII gene PCR-positive transgenic plantlets is 5%. Transient glucuronidase (GUS) expression was observed from these transgenic plantlets. Frequency of GUS-positive transgenic plantlets (4/78) was approximately consistent with that of PCR assay (3/60). Our data indicate that we have successfully established a stable G. dahurica Fisch transformation system by A. tumefaciens. In general, this transformation system we have established might be useful for modifying physiological, medicinal and horticultural traits.
机译:秦ent(Gentiana dahurica Fisch)是中国药典规定的四种重要的龙胆草之一。我们已经建立了使用合子胚芽的G. dahurica Fisch的快速有效的再生系统。利用该再生系统,已经开发了根癌农杆菌介导的达氏乳杆菌转化。合子胚衍生的愈伤组织被携带有包含nptII选择标记基因的pBI121载体的根癌农杆菌(GV3130)感染。在总共60份经合子胚衍生的愈伤组织中,使用nptII基因PCR阳性转基因苗的愈伤组织的发生率为5%。从这些转基因植株中观察到瞬时葡萄糖醛酸糖苷酶(GUS)表达。 GUS阳性转基因植株的发生频率(4/78)与PCR分析(3/60)大致一致。我们的数据表明,我们已经成功地通过根癌农杆菌建立了稳定的G. dahurica Fisch转化系统。一般而言,我们建立的这种转化系统可能对修饰生理,医学和园艺性状有用。

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