[1]张世红,李坤霞,朱淑新,等.毛白杨成熟效应与组培幼化[J].西北林学院学报,2010,25(04):83-86.
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毛白杨成熟效应与组培幼化
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第25卷
期数:
2010年04期
页码:
83-86
栏目:
OA
出版日期:
2010-07-31

文章信息/Info

作者:
张世红;李坤霞;朱淑新;朱建峰;
河北农业大学;邯郸县林业局;衡水学院;
关键词:
毛白杨组织培养成熟效应幼化
摘要:
以20 a生毛白杨不同部位顶芽为外植体,进行组培继代培养,分析不同部位材料在组培过程中的分化系数、生长及激素含量变化,探索毛白杨成熟效应及组培幼化效果。结果表明,成年毛白杨上部至基部外植体在组培过程中不定芽的分化率不断提高,组培苗生长也不断加快;成年树木顶端和中部IAA含量明显低于基部萌生枝条的IAA含量,而ABA含量则相反,从而导致IAA/ABA的比值从顶部到基部依次提高。不同部位组织进行继代培养6个月后,这种趋势仍然保持,但不同部位之间的差异趋于减小,表明经过继代培养,来自不同部位的组织有逐渐幼化的趋势。

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备注/Memo

备注/Memo:
河北省自然科学基金项目(C2006000464)
更新日期/Last Update: 2010-08-20