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茉莉酸对水稻侧根发生的影响(英文) 被引量:8

Effect of Jasmonic Acid on Lateral Root Formation in Rice Seedling
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摘要 实验材料为水稻 (OryzasativaL .)栽培品种“IR8”(国际水稻所 8号 )及其少侧根突变体MT10。将 2d水稻幼苗种子根全部浸入 0 .0 16~ 5 0 μmol/L茉莉酸 (JA)溶液处理 2d ,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 16 8% (“IR8”)和 2 85 % (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 。
出处 《Acta Botanica Sinica》 CSCD 2002年第4期502-504,共3页 Acta Botanica Sinica(植物学报:英文版)
基金 国家自然科学基金 ( 39970 437)~~
关键词 茉莉酸 侧根发生 突变体 水稻 种子根 jasmonic acid lateral root formation mutant Oryza sativa seminal root
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