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金属离子对小麦成熟胚愈伤组织诱导及分化的影响

DOI: 10.7668/hbnxb.2008.S1.010, PP. 38-42

Keywords: 小麦,成熟胚,愈伤组织,CuSO4,AgNO3

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Abstract:

为了建立小麦成熟胚的高频再生体系,以泰9817和泰山21为材料,研究了不同浓度金属离子(Cu2+和Ag+)对小麦成熟胚离体培养特性的影响。结果表明,在培养基中添加1μmol/LCuSO4或10μmol/LAgNO3有助于小麦成熟胚愈伤组织的诱导及分化,不同浓度CuSO4或AgNO3对小麦成熟胚愈伤组织出愈率的影响不如对胚性愈伤率、分化率及出苗率的影响大;在最佳CuSO4浓度(1μmol/L)下,泰9817和泰山21的胚性愈伤率、分化率及出苗率分别比对照(未加CuSO3)提高了71.18%和87.37%、76.01%和88.92%1、59.64%和323.79%;在最佳AgNO3浓度(10μmol/L)下,泰9817和泰山21的胚性愈伤率、分化率及出苗率分别比对照(未加AgNO3)提高了87.79%和99.35%、85.53%和93.88%、121.47%和275.21%。小麦成熟胚愈伤组织培养特性不同金属离子(Cu2+和Ag+)处理间差异不显著。

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