LIAN Hua-shan,YANG Gui-xian,LI Huan-xiu.Effect of Different Nitrogen Sources on Dendrobium candicum Wall.ex Lindl Suspension Cultures[J].Northern Horticulture,2014,38(07):152-155.
不同氮源对铁皮石斛原球茎液体悬浮培养的影响
- Title:
- Effect of Different Nitrogen Sources on Dendrobium candicum Wall.ex Lindl Suspension Cultures
- 文章编号:
- 1001-0009(2014)07-0152-04
- Keywords:
- Dendrobium candicum; nitrogen; proliferation; polysaccharides; protein
- 分类号:
- R 931.71
- 文献标志码:
- A
- 摘要:
- 以铁皮石斛为试材,以1/2MS培养基为基本培养基,添加不同种类的附加氮源20 mmol/L,研究了不同氮源对铁皮石斛原球茎悬浮培养增殖、多糖含量及蛋白质含量的影响。结果表明:最有利于铁皮石斛原球茎悬浮培养增殖的是甘氨酸,硝态氮次之,谷氨酸最差,甚至出现了负增长;在多糖积累方面,硝酸钙对铁皮石斛原球茎多糖积累最为明显,赖氨酸等不利于铁皮石斛原球茎的多糖积累;硝酸钾、硫酸铵有利于铁皮石斛原球茎蛋白质的积累,尿素等其它氮源则不利于铁皮石斛原球茎蛋白质的积累。综合分析发现,硝酸钙最利于铁皮石斛原球茎悬浮培养生长。
- Abstract:
- Taking Dendrobium candicum as material,with 1/2 MS as the basic medium,20 mmol/L different types of additional nitrogen sources were used,the effect of different nitrogen sources on Dendrobium candicum suspension culture proliferation,polysaccharides content and protein content were studied.The results showed that most conducive Dendrobium candicum suspension culture proliferation was glycine,followed by nitrate,and the worst was glutamate.In the accumulation of polysaccharide,the most obvious of polysaccharides accumulate was Ca(NO3)2.On the contrary,lysine was not conducive to polysaccharides accumulation for Dendrobium candicum.KNO3 and (NH4)2SO4 were conducive Dendrobium candicum accumulation of protein,urea and other nitrogen were not conducive to the accumulation of the protein for Dendrobium candicum.Comprehensive analysis found that Ca(NO3)2 was the most conducive for Dendrobium candicum suspension culture.
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备注/Memo
第一作者简介:练华山(1979-),男,农业推广硕士,讲师,农艺师,现主要从事蔬菜与花木等的教学与科研推广工作。E-mail:lhs8748@aliyun.com.