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海石竹的离体快繁及核型分析
潘俊松;蔡润;刘艳芳;何欢乐;吴爱忠
1.上海交通大学植物科学系;2.上海交通大学植物科学系 上海201101;3.上海201101
摘要:
以海石竹 (Armeriamaritima)的叶片为外植体 ,经离体培养诱导产生愈伤组织 ,再分化形成不定芽 ,并经过继代增殖和壮苗生根 ,获得完整的再生植株 ,最后对其再生植株进行核型分析。结果表明 ,海石竹叶片的愈伤组织诱导和分化的适宜培养基为MS +BA 1 .0mg/L +NAA 0 .2mg/L ,诱导初期进行 7d暗培养 ,最佳增殖培养基为MS+BA 1 .0mg/L +NAA 0 .1mg/L ,生根培养基为MS+NAA 0 .2mg/L。以上培养基均含蔗糖3 0 g/L ,琼脂 5g/L ,pH 5 .8。海石竹的核型公式为 2n=2x=1 8=1 0m +8sm ,存在染色体...
关键词:  海石竹    离体培养    快繁    核型分析
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