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首页> 外文期刊>Journal of Experimental Botany >FRUITFULL controls SAUR10 expression and regulates Arabidopsis growth and architecture
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FRUITFULL controls SAUR10 expression and regulates Arabidopsis growth and architecture

机译：Fruitfull控制Saur10表达并调节拟南芥生长和建筑

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摘要

MADS-domain transcription factors are well known for their roles in plant development and regulate sets of downstream genes that have been uncovered by high-throughput analyses. A considerable number of these targets are predicted to function in hormone responses or responses to environmental stimuli, suggesting that there is a close link between developmental and environmental regulators of plant growth and development. Here, we show that the Arabidopsis MADS-domain factor FRUITFULL (FUL) executes several functions in addition to its noted role in fruit development. Among the direct targets of FUL, we identified SMALL AUXIN UPREGULATED RNA 10 (SAUR10), a growth regulator that is highly induced by a combination of auxin and brassinosteroids and in response to reduced R:FR light. Interestingly, we discovered that SAUR10 is repressed by FUL in stems and inflorescence branches. SAUR10 is specifically expressed at the abaxial side of these branches and this localized activity is influenced by hormones, light conditions and by FUL, which has an effect on branch angle. Furthermore, we identified a number of other genes involved in hormone pathways and light signalling as direct targets of FUL in the stem, demonstrating a connection between developmentally and environmentally regulated growth programs.
机译：疯狂域转录因子是众所周知的，其作用在植物发育中的作用，并调节通过高通量分析发现的下游基因组。预计这些目标的相当数量的目标是在激素的反应或对环境刺激的反应中起作用，这表明植物生长和发展的发展和环境调节器之间存在密切联系。在这里，我们表明，除了在果实开发中的发挥作用之外，rapidopsis mads域因素firsfull（ful）还执行多种功能。在满足的直接靶标中，我们鉴定了小型助体素上调的RNA 10（SAUR10），一种生长调节剂，其由毒素和芸苔类固醇的组合高度诱导，并且响应于减少R：FR光。有趣的是，我们发现Saur10被茎和花序分支中的充满抑制。 Saur10特异性在这些分支的轴向侧表达，并且该局部活性受激素，光线条件和充满激素的影响，这对分支角度产生了影响。此外，我们鉴定了许多参与激素途径和光信号传导的其他基因，作为茎中有足够的直接靶标，展示了发育和环境监管的生长计划之间的联系。

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