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| 1 | Structural Aspects of Multistep Phosphorelay- Mediated Signaling in Plants显示文摘multistep phosphorelay (MSP ) 是在集成大量神经质、环境的输入并且控制众多的发展改编的植物的一条中央发信号小径。为位于调停 MSP 的信号识别和 transduction 下面的分子的机制的彻底的理解,小径的单个成员的详细结构的描述是批评的。在我们描述并且讨论的这评论,最近已知的水晶和原子磁性的回声在在更高的植物发信号的 MSP 行动的蛋白质组织,特别地集中于在 Arabidopsis thaliana 发信号的细胞激动素和乙烯。我们通过 phosphorelay 包括 ligand 特性,经由它的 autophosphorylation 的受体的激活,和下游的信号 transduction 的决心讨论可得到的结构的信息的功能的方面的范围。我们把植物结构与他们的细菌的对应物作比较并且证明尽管全面类似高,在结构的细节的差别经常、机能上地重要。最后,我们在 MSP 在分子的识别机制上讨论新兴的知识,并且关于在能在所有更高的植物担任这条小径的一个一般模型的 Arabidopsis MSP 表明特性的结构的决定因素提及最近的调查结果。 | Blanka Pekarova Agnieszka Szmitkowska Radka Dopitova Oksana Degtjarik Lukas Zidek Jan Hejatko | 2016 | Molecular Plant2016，9，1： | 2 |
| 2 | ETR1 Integrates Response to Ethylene and Cytokinins into a Single Multistep Phosphorelay Pathway to Control Root Growth显示文摘Cytokinins and ethylene control plant development via sensors from the histidine kinase(HK)family.However,downstream signaling pathways for the key phytohormones are distinct.Here we report that not only cytokinin but also ethylene is able to control root apical meristem(RAM)size through activation of the multistep phosphorelay(MSP)pathway.We found that both cytokinin and ethylene-dependent RAM shortening requires ethylene binding to ETR1 and the HK activity of ETR1.The receiver domain of ETR1 interacts with MSP signaling intermediates acting downstream of cytokinin receptors,further substantiating the role of ETR1 in MSP signaling.We revealed that both cytokinin and ethylene induce the MSP in similar and distinct cell types with ETR1-mediated ethylene signaling controlling MSP output specifically in the root transition zone.We identified members of the MSP pathway specific and common to both hormones and showed that ETR1-regulated ARR3 controls RAM size.ETR1-mediated MSP spatially differs from canonical CTR1/EIN2/EIN3 ethylene signaling and is independent of EIN2,indicating that both pathways can be spatially and functionally separated.Furthermore,we demonstrated that canonical ethylene signaling controls MSP responsiveness to cytokinin specifically in the root transition zone,presumably via regulation of ARR10,one of the positive regulators of MSP signaling in Arabidopsis. | Marketa Zdarska Abigail Rubiato Cuyacot Paul TTarr Amel Yamoune Agnieszka Szmitkowska Vendula Hrdinová Zuzana Gelová Elliot MMeyerowitz Jan Hejátko | 2019 | Molecular Plant2019，12，10： | 0 |
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