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GA3和ABA对马铃薯薯形的影响 被引量:3

Effects of GA3 and ABA on potato tuber shape
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摘要 采用高效液相色谱串联质谱法测定马铃薯2个不同薯形品种会-2和PB06成熟块茎中植物激素赤霉素(GA3)及脱落酸(ABA)的含量,发现椭圆薯形品种会-2成熟块茎中GA3含量高、ABA含量低,相反圆薯形品种PB06块茎中GA3含量低、ABA含量高。由此推测,植物激素ABA和GA3可能参与调控马铃薯块茎形状的发育。外源添加植物生长调节剂GA3及ABA同样影响试管薯的形状。添加0.01μmol/L GA3,试管薯纵茎与横径的比值增加到1.50;添加5μmol/L ABA,块茎纵径与横茎的比值轻微下降,与对照相比没有显著差异。但是同时添加0.01μmol/L GA3和5μmol/L ABA,试管薯纵茎与横径的比值相对单独添加0.01μmol/L GA3显著降低到1.37。因此,ABA和GA3在调控试管薯的薯形中起到拮抗效应,该作用可能是通过影响薯形相关基因的表达或关闭而实现的。
作者 胡月清 Hu Yueqing
出处 《江苏农业科学》 2019年第18期125-128,共4页 Jiangsu Agricultural Sciences
基金 江西省教育厅科学技术研究项目(编号:GJJ161010)
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