Effect of Jasmonic Acid on Lateral Root Formation in Rice Seedling

Abstract

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,南京,210095；2. 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号)及其少侧根突变体MT10.将2 d水稻幼苗种子根全部浸入0.016～50 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/L的JA显著促进侧根的发生,每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")和285%(MT10).10 μmol/L的JA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,每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

WANG Shu Cai, Masahiko ICHII, Shin TAKETA, XU Lang Lai, XIA Kai, ZHOU Xie. Effect of Jasmonic Acid on Lateral Root Formation in Rice Seedling[J]. J Integr Plant Biol., 2002, 44(4): 502-504.

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Effect of Jasmonic Acid on Lateral Root Formation in Rice Seedling

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