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中国农学通报 ›› 2005, Vol. 21 ›› Issue (6): 91-91.

所属专题: 生物技术 园艺

• 目次 • 上一篇    下一篇

药用植物刺五加组织培养关键技术的研究

贝丽霞,陈祥梅,赵海红   

  • 出版日期:2005-06-05 发布日期:2005-06-05

A Key Technological Study on Tissue Culture of AcanThopanax Senticosus for Medicine

Bei Lixia, Chen Xiangmei, Zhao Haihong   

  • Online:2005-06-05 Published:2005-06-05

摘要: 刺五加为五加科植物刺五加[Acanthopanax Senticosus(Rupr.et Maxim./farms)]的根及根茎。含有各种刺五加甙。近年来新的研究进展表明:刺五加能有效地抗肿瘤、抗疲劳、抗衰老,并对心血管有很好的保护作用,还能提高免疫力,是极其珍贵的药物资源。就目前临床供药而言,主要从刺五加根和茎中提取。资源消耗与日俱增,已使刺五加植物濒临灭绝的危险,为实现其永续利用,建立组织培养技术能在短期内繁殖大量苗木,对保护这一珍稀植物物种和合理开发利用这一药源具有重要的现实意义。 选用刺五加的叶片、茎尖、当年生根为材料,研究了激素对刺五加愈伤组织继代培养、不定芽发生及生根的影响。结果表明:培养基中激素配比对刺五加愈伤组织的分化和诱导生根有很大影响。刺五加组织培养适宜的分化培养基为BZ+NAA3.0+6-BA2.0,适宜的生根培养基为BZ+IBA0.2。刺五加愈伤组织再分化能力主要受外植体类型及愈伤组织继代保存时间的长短影响。来源于叶片的愈伤组织的分化能力最强,愈伤组织经30d继代培养后,愈伤组织分化率达73.62%,再生芽分化系数为7.5,并随愈伤组织继代保存时间的延长,愈伤组织的分化能力逐渐降低。

Abstract: Acanthopanax senticosus(Rupr Emaxim) Harms is a kind of defoliated shrub which belongs to Araliaceae Eleutherococcus. In recent years many kinds of julibrissins are isolated from the roots and leaves of Acanthopanax senticosus. Chemical pharmacology research shows that Acanthopanax senticosus is a kind of extremely precious medicine resources, and its functions include antitumor, resist fatigue, anti-ageing, at the same time, it can protect cardiovascular effectively, and improve immunity of human body. With the development of modern medicine studying rapidly, the demands for the plant for medinice increase day by day, so that the domestic and international experts pay more and more attention to Acanthopanax senticosus and its applications. Offering of medicines clinically depends on drawing from the roots and stems of Acanthopanax senticosus mainly; this makes it close to extinction. The imbalance between supply and demand of market is conspicuous, and products of the plant can't meet demands of research of the antineoplastic. Technology on tissue culture and rapid propagation of Acanthopanax senticosus can breed out a large number of nursery stocks as fine individuals. As xylophyta, it is very difficult for rooting induction, so the key about tissue culture is how to improve rooting rate, and this need remain to study further. It is demonstrated by the experiment that callus shoot and rooting induction of Acanthopanax senticosus are influenced by different hormone combinations of culture media. BZ+NAA3.0+6-Ba2.0 is the favorable medium for differentiation of Acanthopanax senticosus tissue culture, and BZ+IBA0.2 is the one for rooting. Differentiation ability of Acanthopanax senticosus callus is influenced by the type of explants and holding time of suspension culture mainly. Differentiation ability of Acanthopanax senticosus callus that is obtained from leaves is the best. After 30 days for suspension culture, differentiation rate of callus get to 73.62%, and differentiation coefficient of regeneration bud is 7.5. Differentiation ability of Acanthopanax senticosus callus reduces with extension of suspension holding time of it.