过表达ZmIBH1-1提高玉米苗期抗旱性

朱芳芳,董亚辉,任真真,王志勇,苏慧慧,库丽霞,陈彦惠

Over-expression of ZmIBH1-1 to Improve Drought Resistance in Maize Seedlings

ZHU FangFang,DONG YaHui,REN ZhenZhen,WANG ZhiYong,SU HuiHui,KU LiXia,CHEN YanHui

图4 ZmIBH1-1-OE和野生型株系B104在干旱迫下的表型及各项生理指标变化 A：B104和ZmIBH1-1-OE株系在PEG6000胁迫下的表型;B：B104和ZmIBH1-1-OE株系在PEG6000胁迫下的存活率（n=3,±SD,**P<0.01,n.s不显著）;C：B104和ZmIBH1-1-OE株系在PEG6000胁迫下的叶片平均含水量（n=3,±SD,**P<0.01,n.s不显著）;D：B104和ZmIBH1-1-OE株系在PEG6000胁迫下的POD、SOD、CAT酶活性测定（n=3,±SD,**P<0.01,n.s不显著）;E：B104和ZmIBH1-1-OE株系在PEG6000胁迫下的总叶绿素（Cht）、类胡萝卜素（Car）和可溶性蛋白（SP）含量的变化测定（n=3,±SD,**P<0.01,n.s不显著）

Fig. 4 Phenotype and physiological changes of ZmIBH1-1-OE and wild type B104 lines under drought stress A: The phenotype of B104 and ZmIBH1-1-OE lines under PEG6000 stress; B: Mean survival rate of B104 and ZmIBH1-1-OE lines under PEG6000 stress (n=3, ±SD, **P<0.01, n.s not significant); C: Mean relative water contents (RWCs) of B104 and ZmIBH1-1-OE lines under PEG6000 stress (n=3, ±SD, **P<0.01, n.s not significant); D: Determination of POD, SOD and CAT enzyme activities of B104 and ZmIBH1-1-OE strains under PEG6000 stress (n=3, ±SD, **P< 0.01, n.s not significant); E: Determination of the contents of Cht, Car and SP of B104 and ZmIBH1-1-OE strains under PEG6000 stress (n=3, ±SD, **P<0.01, n.s not significant)