本文报导了以上农香糯为受体植物,用吸涨法、组织培养法和花粉管通道导入等方法将小牛胸腺 DNA 导入上农香糯.所得结果表明:1.外源 DNA 能增加剑叶宽度;2.外源 DNA(模糊多基因)能使上农香糯对稻瘟病和白叶枯病的抗性提高.对照对稻瘟病为...本文报导了以上农香糯为受体植物,用吸涨法、组织培养法和花粉管通道导入等方法将小牛胸腺 DNA 导入上农香糯.所得结果表明:1.外源 DNA 能增加剑叶宽度;2.外源 DNA(模糊多基因)能使上农香糯对稻瘟病和白叶枯病的抗性提高.对照对稻瘟病为8级感病,白叶枯为中感,而导入模糊多基因后的上农香糯对稻瘟病的感病性已降至7级和6级,对白叶枯病已为中抗.展开更多
In order in study resourses of rice cytoplasm extensively,we have isolated restrictive mtDNA from callus. A comparative analysis of the mtDNA in eliolated seedling and in callus of a year’ s. culture has been conduct...In order in study resourses of rice cytoplasm extensively,we have isolated restrictive mtDNA from callus. A comparative analysis of the mtDNA in eliolated seedling and in callus of a year’ s. culture has been conducted. Restriction fragment patterns of mtDNA isolated from these two sources were identical. We have compared mtDNA of Nonghu. Liuqianxin, Liming male sterile cytoplasms and the results show that.BamHI patterns of mtDNA from ST type are almost identical.展开更多
文摘本文报导了以上农香糯为受体植物,用吸涨法、组织培养法和花粉管通道导入等方法将小牛胸腺 DNA 导入上农香糯.所得结果表明:1.外源 DNA 能增加剑叶宽度;2.外源 DNA(模糊多基因)能使上农香糯对稻瘟病和白叶枯病的抗性提高.对照对稻瘟病为8级感病,白叶枯为中感,而导入模糊多基因后的上农香糯对稻瘟病的感病性已降至7级和6级,对白叶枯病已为中抗.
文摘In order in study resourses of rice cytoplasm extensively,we have isolated restrictive mtDNA from callus. A comparative analysis of the mtDNA in eliolated seedling and in callus of a year’ s. culture has been conducted. Restriction fragment patterns of mtDNA isolated from these two sources were identical. We have compared mtDNA of Nonghu. Liuqianxin, Liming male sterile cytoplasms and the results show that.BamHI patterns of mtDNA from ST type are almost identical.