光质对矮化黄瓜膨胀素基因表达的影响  

Effect of Light Quality on the Expression of Expansin Gene in Dwarf Cucumber

作　　者：王多佳[1] 孙莉莉[1] 黄莎莎[1] 李凤兰[1] 胡宝忠[1] 

机构地区：[1]东北农业大学生命科学学院,黑龙江哈尔滨150030

出　　处：《北方园艺》2015年第2期84-88,共5页Northern Horticulture

基　　金：高等学校博士后专项科研基金资助项目(200802240008);黑龙江省自然科学基金资助项目(230340)

摘　　要：以矮生黄瓜"D0462"和蔓生黄瓜"129"为试材,研究不同光质对其膨胀素基因表达的影响。结果表明:不同光质对黄瓜下胚轴的伸长起到或抑制或促进的作用;通过Real-time PCR定量分析推测红光抑制膨胀素基因的表达;蓝光对膨胀素基因Cs-EXPA1,Cs-EXPA2的表达先抑制后促进;推断黄瓜"D0462"的矮化性状与膨胀素基因表达关系密切,其中Cs-EXPA1基因的影响尤为关键。Taking sprawl cucumber（Cucurnis sativus L. ） ＇ 129＇ and dwarf cucumber ＇ D0462 ＇ as experimental materials, the effects of different light qualities on expression of the expansin were studied. The results showed that the hypocotyls length of ＇D0462＇ was longer or shorter by different light treatment. The expression of expansin was detection by Real- time PCR. The red light inhibited the expression of expansin and blue light inhibited at first but promoted after that. It was inferred that the dwarf character of＇ D0462＇was related to the expression of expansin, espcially with the Cs-EXPA1.

关 键 词：光质 膨胀素 矮化 表达 

分 类 号：S642.2[农业科学—蔬菜学]