Progesterone: Its occurrence in plants and involvement in plant growth
Progesterone: Its occurrence in plants and involvement in plant growth
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DOI：
10.1016/j.phytochem.2007.04.002
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发表时间：
2007-06-01
期刊：
影响因子：
3.8
通讯作者：
Yokota, Takao
中科院分区：
文献类型：
--
作者：
Iino, Mayumi;Nomura, Takahito;Yokota, Takao
孕酮是哺乳动物的一种性腺激素。在目前的研究中，我们利用GC-MS鉴定和定量了一系列高等植物中的孕酮，并研究了它对植物营养生长的影响。低浓度孕酮对拟南芥幼苗生长有促进作用，高浓度孕酮对光、暗生长均有抑制作用。黄体酮对豌豆赤霉素缺失突变体Lh的生长也有促进作用。早期的研究表明，孕酮与拟南芥的膜类固醇结合蛋白1(MSBP1)结合。在这项工作中，我们克隆了拟南芥、MSBP2和类固醇结合蛋白(SBP)的同源基因，以及水稻(Oryza Sativa)、OsMSBP1、OsMSBP2和OsSBP的同源基因，并检测了它们在植物组织中的表达。除OsMSBP1基因外，其余基因均在植物组织中大量表达。并对孕酮在植物生长中的作用进行了讨论。(C)2007爱思唯尔有限公司。保留所有权利。
Progesterone is a mammalian gonadal hormone. In the current study, we identified and quantified progesterone in a range of higher plants by using GC-MS and examined its effects on the vegetative growth of plants. The growth of Arabidopsis (Arabidopsis thaliana) seedlings was promoted by progesterone at low concentrations but suppressed at higher concentrations under both light and dark growth conditions. The growth of the gibberellin-deficient mutant lh of pea (Pisum sativum) was also promoted by progesterone. An earlier study demonstrated that progesterone binds to MEMBRANE STEROID BINDING PROTEIN 1 (MSBP1) of Arabidopsis. In this work, we cloned the homologous genes of Arabidopsis, MSBP2 and STEROID BINDING PROTEIN (SBP), as well as of rice (Oryza sativa), OsMSBP1, OsMSBP2 and OsSBP and examined their expression in plant tissues. All of these genes, except OsMSBP1, were expressed abundantly in plant tissues. The roles of progesterone in plant growth were also discussed. (c) 2007 Elsevier Ltd. All rights reserved.