Establishment of High Frequency Regeneration System of Atropa belladonna L. and Screening of Kanamycin Resistance  

颠茄高频再生体系的建立及卡那霉素抗性筛选(摘要)(英文)

作　　者：王细荣[1] 强玮[1] 卢衍[1] 李金弟[1] 廖志华[1] 

机构地区：[1]西南大学生命科学学院,重庆400715

出　　处：《Agricultural Science & Technology》2011年第3期372-374,共3页农业科学与技术（英文版）

基　　金：Supported by National High Technology Research Development Plan Item (2010AA100503)~~

摘　　要：[Objective] The research aimed to establish the high frequency regeneration system of Atropa belladonna L. and screen the kanamycin （Kan） resistance. [Method] The leaves and axillary buds of Atropa belladonna L. were as the explants,the influences of different ratios of 6-BA and NAA in the medium on the adventitious bud differentiation and the sensibility of leaf on Kan were studied. [Result] MS＋4.5 mg/L 6-BA＋0.2 mg/L NAA was the optimum medium of leaf adventitious bud differentiation,and the differentiation ratio of adventitious bud reached 100%. The number of adventitious bud differentiation on 1. 0 cm ×1. 0 cm leaf block averagely reached 5.85. MS＋3.0 mg/L 6-BA＋0.1 mg/L NAA was the optimum medium of axillary bud adventitious bud differentiation,and the differentiation ratio of adventitious bud reached 100%. The average number of adventitious bud differentiation in every axillary bud was during 4-8. The optimum screening concentration for genetic transformation of Atropa belladonna L. leaf was 400.0 mg/L of Kan. [Conclusion] The research laid the foundation for the rapid propagation of Atropa belladonna L. aseptic seedling and the genetic transformation based on the leaf disc cocultivation.[目的]建立颠茄高频再生体系及筛选卡那霉素(Kan)抗性。[方法]以颠茄叶片及腋芽为外植体,研究了培养基中6-BA和NAA不同配比对其不定芽分化的影响以及叶片不定芽对Kan的敏感性。[结果]MS+4.5mg/L6-BA+0.2mg/LNAA为叶片不定芽分化的最佳培养基,不定芽分化率达100%,在1.0cm×1.0cm叶块上的不定芽分化数平均达5.85;MS+3.0mg/L6-BA+0.1mg/LNAA为腋芽不定芽分化的最适培养基,不定芽分化率达100%,每个腋芽不定芽分化平均数为4～8个;400.0mg/LKan为颠茄叶片遗传转化的最佳筛选浓度。[结论]为颠茄无菌苗的快速繁殖以及基于叶盘法的遗传转化奠定了基础。

关 键 词：Atropa belladonna L. Regeneration system Kan SENSIBILITY 

分 类 号：S567.239[农业科学—中草药栽培]