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不同比例MS培养基对脱毒马铃薯快繁生长的影响

2014-10-21宋鹏慧王春艳梁文卫张鹍杨光宋德禄

安徽农业科学 2014年31期

宋鹏慧 王春艳 梁文卫 张鹍 杨光 宋德禄

摘要 [目的]研究不同比例的MS培养基对脱毒马铃薯快繁生长的影响, 探索最适宜马铃薯脱毒苗生长的继代培养基。[方法]分别设添加不同浓度的不含有机物的MS培养基,以‘克新13脱毒试管苗为材料,研究适宜马铃薯脱毒试管苗快繁的最佳MS培养基简化方案。[结果]生长在添加量为90%、80%、70%的不含有机物的MS培养基上的试管苗均较好,与生长在CK培养基上的试管苗差异不明显。生长在添加量为60%及以下的不含有机物的MS培养基试管苗生长较差。[结论]从试管苗的生长和节约成本的角度综合考虑,应选取添加70%的不含有机物MS培养基,该培养基可以达到节约成本和简化试验目的,适宜应用于马铃薯试管苗的生产。

关键词 马铃薯;试管苗;MS培养基

中图分类号 S532 文献标识码

A 文章编号 0517-6611(2014)31-10853-02

Effects of Different Ratios of MS Medium on the Rapid Propagation of Virusfree Potato

SONG Penghui,WANG Chunyan,LIANG Wenwei et al (Berries Institute,Heilongjiang Academy of Agricultural Sciences,Suiling,Heilongjiang 152200)

Abstract [Objective] The aim is to study effects of different proportion of MS culture medium on rapid propagation of virusfree potato,explore the optimum medium of potato plantlets subculture breeding.[Method] 'Kexin 13' virusfree plantlets as materials,different concentration MS without orgamic matter as medium,the optimal MS medium simplified scheme for rapid propagation of potato virusfree plantlets was studied.[Result] Addition of 100%,90%,80%,70% organic free MS medium were better for plantlet growth, and the difference was not obvious compared with CK.60% and below MS culture medium without orgamic matter were poor for the growth of tube plantlets.[Conclusion] Considering the plantlets growth and cost saving,70% MS medium without organic compounds should be selected,the medium can save the cost and simplify the test,which is suitable for the production of potato plantlets in vitro.

Key words Potato; Plantlets in vitro; MS medium

MS培養基是Murashige和Skoog于1962年为烟草细胞培养设计的,其特点是无机盐和离子浓度较高,是较稳定的离子平衡溶液;其硝酸盐含量高;其养分数量和比例合适,能满足植物细胞的营养和生理需要,其适用范围较广[1]。目前,马铃薯(Solanum tuberosum L.)试管苗繁殖大多采用MS培养基[2-4]。快繁培养基是脱毒马铃薯生产的基础,因此,优化马铃薯脱毒苗的快繁培养基,以达到生产中的高效、快速和低耗是非常必要的[3-7]。在以往的MS培养基简化试验中,研究者大都赞成省去有机成分(包括肌醇),而多数人不赞成省去铁盐和大量无机元素[8]。笔者也做过相关试验,得出不添加有机物的MS培养……

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