A convenient method for simultaneous quantification of multiple phytohormones and metabolites: application in study of rice-bacterium interaction.

A convenient method for simultaneous quantification of multiple phytohormones and metabolites: application in study of rice-bacterium interaction.
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一种同时定量多种植物激素和代谢物的便捷方法:在水稻-细菌相互作用研究中的应用

DOI:
10.1186/1746-4811-8-2
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发表时间:
2012-01-15
期刊:
影响因子:
5.1
通讯作者:
Wang S
Wang S
中科院分区:
生物学2区
文献类型:
--
作者:
Liu H;Li X;Xiao J;Wang S

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背景同时分析多种功能相关的植物激素及其代谢产物将提高我们对同一生物过程中不同激素之间相互作用的理解。结果建立了一种同时定量多种植物激素,脱落酸,吲哚-3-乙酸(IAA),茉莉酸(JA),水杨酸,激素结合物,IAA-天冬氨酸,JA-异亮氨酸,JA甲基,以及植物抗毒素的方法,momilactone A,naringenin,和sakuranalcohol。该方法结合了用于制备过滤的粗提取样品的方便程序和使用超快速液相色谱-电喷雾电离串联质谱(UFLC-ESI-MS)的灵敏定量测定。用这种方法,我们确定了动态配置文件的防御相关的植物激素,激素代谢物,和植物抗毒素的相互作用的水稻与黄单胞菌oryzaepv. pepv. Xoo(Xoo),这会导致白叶枯病,最具破坏性的疾病之一的水稻world.ConclusionThis UFLC-ESI-MS方法是方便,灵敏,可靠,和廉价的定量多种植物激素和代谢物相比,目前的方法。应用该方法研究水稻-细菌互作所获得的结果为进一步了解水稻防御反应的分子机制奠定了基础。
BackgroundSimultaneous analysis of multiple functional-related phytohormones and their metabolites will improve our understanding of interactions among different hormones in the same biologic process.ResultsA method was developed for simultaneous quantification of multiple phytohormones, abscisic acid, indole-3-acetic acid (IAA), jasmonic acid (JA), and salicylic acid, hormone conjugates, IAA-aspartic acid, JA-isoleucine, and methyl JA, and phytoalexins, momilactone A, naringenin, and sakuranetin. This method combines a convenient procedure for preparing filtrated crude extracted samples and a sensitive quantification assay using ultra fast liquid chromatography-electrospray ionization tandem mass spectrometry (UFLC-ESI-MS). With this method, we determined the dynamic profiles of defense-related phytohormones, hormone metabolites, and phytoalexins in the interaction of rice withXanthomonas oryzaepv.oryzae(Xoo), which causes bacterial blight, one of the most devastating diseases of rice worldwide.ConclusionThis UFLC-ESI-MS method is convenient, sensitive, reliable, and inexpensive for quantification of multiple phytohormones and metabolites compared to current methods. The results obtained by application of this method in studying rice-bacterial interaction provide a basis for understanding the molecular mechanisms of rice defense responses.
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