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四种生长素对拟南芥根生长发育的影响 被引量:13

Study on the Root Growth and Development of Arabidopsis thaliana
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摘要 利用奈乙酸(NAA)、吲哚乙酸(IAA)、吲哚丁酸(IBA)和2,4-D等4种生长素的不同浓度(0、0.01、0.02、0.05、0.1、0.15和0.2 mg/L)的溶液,分别在MS培养基上对拟南芥萌发的幼苗进行处理,对其生根情况进行测定,结果表明:4种生长素都能抑制拟南芥主根生长,促进不定根生长,2,4-D的抑制作用最明显;IBA与IAA的促进作用差异不显著;NAA在0.05 mg/L时;促进作用最强。 The germination seedling of Arabidopsis thaliana was treated in MS medium with four kinds of plant growth regulator(NAA, IAA,IBA and 2,4-D) and the different concentrations (0,0.01,0.02,0.05,0. 1,0. 15 and 0.2 mg/L), respectively and the rooting growth situations were measured. The result showed that the different concentrations of exogenous auxin all inhibited the root development and promoted adventitious root. 2,4-D had most signification effect, and IBA and IAA were not signification. 0.05 mg/L concentration of NAA had markedly effectiveness.
作者 周索 杜丽
机构地区 南阳师范学院
出处 《北方园艺》 CAS 北大核心 2008年第3期51-52,共2页 Northern Horticulture
基金 河南省科技攻关资助项目(0624050023) 南阳师范学院科研基金资助课题(nytc200531)
关键词 拟南芥 IAA IBA 2 4-D NAA Arabidopsis thaliana IAA IBA 2,4-D NAA Root
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