J Integr Plant Biol. ›› 2002, Vol. 44 ›› Issue (4): 502-504.

• Research Articles • Previous Articles    

Effect of Jasmonic Acid on Lateral Root Formation in Rice Seedling

WANG Shu Cai, Masahiko ICHII, Shin TAKETA, XU Lang Lai, XIA Kai, ZHOU Xie*   

Abstract:

茉莉酸对水稻侧根发生的影响

王树才1,2,3  Masahiko ICHII2  Shin TAKETA2  徐朗莱3  夏凯1  周燮1*

(1.南京农业大学农学院,南京,2100952. Faculty of Agriculture, Kagawa University,Kagawa 761-0795, Japan 3.南京农业大学理学院,南京,210095)

实验材料为水稻(Oryza sativa L.)栽培品种"IR8"(国际水稻所8)及其少侧根突变体MT10.2 d水稻幼苗种子根全部浸入0.01650 μmol/L 茉莉酸(JA)溶液处理2 d,结果表明JA显著抑制种子根的伸长,其抑制程度与JA浓度成正比.不高于2 μmol/LJA显著促进侧根的发生,cm的侧根数目随浓度的增加而增加,最多可增加到原来的168%("IR8")285%(MT10).10 μmol/LJA仍促进处理过程中和处理后生成根区段的侧根数目的增加,但明显抑制处理前生成根区段侧根的发生,cm的侧根数目有所下降.

关键词 茉莉酸 侧根发生 突变体 水稻 种子根

*通讯作者 Email: zhish@jlonline.com

 

Key words: jasmonic acid, lateral root formation, mutant, Oryza sativa, seminal root

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