外源ABA对拟南芥花粉生长的影响  

Effects of Exogenous ABA on Arabidopsis Pollen Growth

作　　者：周云[1] 白玲[1] 高利洁[1] 马晓楠[1] 宋纯鹏[1] 

机构地区：[1]河南省(教育部)植物逆境生物学重点实验室河南大学生命科学学院,河南开封475004

出　　处：《河南大学学报（自然科学版）》2010年第3期274-277,共4页Journal of Henan University:Natural Science

基　　金：河南省教育厅基金资助项目(2008A180002)

摘　　要：以拟南芥(生态型Col-0)的花粉为材料,主要研究外源ABA对花粉萌发和花粉顶端生长的作用.通过ABA浓度梯度(0,10,50,100μmol/L)处理,结果表明,ABA显著抑制了拟南芥花粉的萌发和花粉管的生长.利用激光共聚焦技术研究的结果表明,ABA通过改变活性氧的极性定位模式影响花粉的生长.Founction of abscisic acid（ABA） on regulating germination and tip-growth was analyzed with Arabidopsis （Col-0）. The pollen were treated with a series of concentration of ABA （0,10,50,100 μmol/L）,and results showed that both of the pollen germination rate and the pollen tube growth were inhibited significantly by exogenous ABA. Tip-localized H2O2 in the pollen tube was altered by ABA,suggesting that ABA inhibits the Arabidopsis pollen growth by influencing the localization pattern of H2O2.

关 键 词：ABA 拟南芥 花粉萌发 花粉管生长 H2O2 

分 类 号：Q945[生物学—植物学]