IPT促进稻苗种子根侧根原基的发生  

The Occurcence of Lateral Root Primordia in Rice Seminal Root Was Promoted by IPT

作　　者：张红心[1] 闫芝芬[2] 周燮[1] 王伟中[3] 

机构地区：[1]南京农业大学农学系,江苏南京210095 [2]河北省农林科学院农业物理生理生化研究所,河北石家庄050051 [3]淮阴市农业科学研究所

出　　处：《华北农学报》2000年第3期29-33,共5页Acta Agriculturae Boreali-Sinica

基　　金：江苏省教委联建重点学科项目资助!(97- 0 1 )

摘　　要：0 0 1～ 10mg/L的IPT能够促进稻苗种子根侧根原基的数目。与此同时 ,种子根的内源激素IAA和ABA的含量显著提高 ,而iPAs的含量下降。IPT处理后 ,稻苗种子根的吲哚乙酸氧化酶 (IAAox)的活性下降 ,过氧化物酶 (POD)Treated with IPT (isoprothiolane )in 0.01,0.1,1.0,10 mg/L concentrations. respectively,the seminal root of rice seedling developed lateral root primordia 1.28-1.80 times higher in number than the control.Meanwhile,the contents of IAA and ABA in seminal root of rice seeding increased,but iPAs decreased.IPT decreased IAA oxidase(IAAox)activity of seminal root significantly,although enhanced POD activity slightly.

关 键 词：IPT 水稻幼苗 侧根原基 含硫杀菌剂 内源激素 

分 类 号：S482.22[农业科学—农药学]