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Receptor kinase module targets PIN-dependent auxin transport during canalization
Science ( IF 56.9 ) Pub Date : 2020-10-29 , DOI: 10.1126/science.aba3178
Jakub Hajný 1, 2 , Tomáš Prát 1 , Nikola Rydza 3 , Lesia Rodriguez 1 , Shutang Tan 1 , Inge Verstraeten 1 , David Domjan 1 , Ewa Mazur 3, 4 , Elwira Smakowska-Luzan 5, 6 , Wouter Smet 7, 8 , Eliana Mor 7, 8 , Jonah Nolf 7, 8 , BaoJun Yang 7, 8 , Wim Grunewald 7, 8 , Gergely Molnár 1, 9 , Youssef Belkhadir 6 , Bert De Rybel 7, 8 , Jiří Friml 1
Affiliation  

Hormone-guided self-organization Auxin signals travel through pathways in developing or regenerating plant tissues to guide tissue formation. Hajný et al. now show that an auxin-regulated receptor in turn regulates phosphorylation and thus subcellular localization of an auxin transporter. Through this signaling pathway, auxin builds the pathways through which it is transported, guiding development as it goes. Science, this issue p. 550 In plants, the direction of auxin transport is regulated through an auxin-responsive receptor complex. Spontaneously arising channels that transport the phytohormone auxin provide positional cues for self-organizing aspects of plant development such as flexible vasculature regeneration or its patterning during leaf venation. The auxin canalization hypothesis proposes a feedback between auxin signaling and transport as the underlying mechanism, but molecular players await discovery. We identified part of the machinery that routes auxin transport. The auxin-regulated receptor CAMEL (Canalization-related Auxin-regulated Malectin-type RLK) together with CANAR (Canalization-related Receptor-like kinase) interact with and phosphorylate PIN auxin transporters. camel and canar mutants are impaired in PIN1 subcellular trafficking and auxin-mediated PIN polarization, which macroscopically manifests as defects in leaf venation and vasculature regeneration after wounding. The CAMEL-CANAR receptor complex is part of the auxin feedback that coordinates polarization of individual cells during auxin canalization.

中文翻译:

受体激酶模块靶向管化过程中依赖 PIN 的生长素转运

激素引导的自组织生长素信号通过植物组织发育或再生的途径来引导组织形成。Hajný 等人。现在表明生长素调节的受体反过来调节磷酸化,从而调节生长素转运蛋白的亚细胞定位。通过这个信号通路,生长素建立了运输途径,指导发育。科学,本期第 3 页。550 在植物中,生长素转运的方向通过生长素反应受体复合物进行调节。自发产生的运输植物激素生长素的通道为植物发育的自组织方面提供位置线索,例如灵活的脉管系统再生或其在叶脉期间的模式化。生长素通道化假说提出了生长素信号传导和转运之间的反馈作为潜在机制,但分子参与者等待发现。我们确定了引导生长素运输的部分机制。生长素调节受体 CAMEL(Canalization-related 生长素调节 Malectin-type RLK)与 CANAR(Canalization-related Receptor-like kinase)一起与 PIN 生长素转运蛋白相互作用并使其磷酸化。camel 和 canar 突变体在 PIN1 亚细胞运输和生长素介导的 PIN 极化中受损,宏观上表现为受伤后叶脉和脉管系统再生的缺陷。CAMEL-CANAR 受体复合物是生长素反馈的一部分,在生长素通道化过程中协调单个细胞的极化。我们确定了引导生长素运输的部分机制。生长素调节受体 CAMEL(Canalization-related 生长素调节 Malectin-type RLK)与 CANAR(Canalization-related Receptor-like kinase)一起与 PIN 生长素转运蛋白相互作用并使其磷酸化。camel 和 canar 突变体在 PIN1 亚细胞运输和生长素介导的 PIN 极化中受损,宏观上表现为受伤后叶脉和脉管系统再生的缺陷。CAMEL-CANAR 受体复合物是生长素反馈的一部分,在生长素通道化过程中协调单个细胞的极化。我们确定了引导生长素运输的部分机制。生长素调节受体 CAMEL(Canalization-related 生长素调节 Malectin-type RLK)与 CANAR(Canalization-related Receptor-like kinase)一起与 PIN 生长素转运蛋白相互作用并使其磷酸化。camel 和 canar 突变体在 PIN1 亚细胞运输和生长素介导的 PIN 极化中受损,宏观上表现为受伤后叶脉和脉管系统再生的缺陷。CAMEL-CANAR 受体复合物是生长素反馈的一部分,在生长素通道化过程中协调单个细胞的极化。生长素调节受体 CAMEL(Canalization-related 生长素调节 Malectin-type RLK)与 CANAR(Canalization-related Receptor-like kinase)一起与 PIN 生长素转运蛋白相互作用并使其磷酸化。camel 和 canar 突变体在 PIN1 亚细胞运输和生长素介导的 PIN 极化中受损,宏观上表现为受伤后叶脉和脉管系统再生的缺陷。CAMEL-CANAR 受体复合物是生长素反馈的一部分,在生长素通道化过程中协调单个细胞的极化。生长素调节受体 CAMEL(Canalization-related 生长素调节 Malectin-type RLK)与 CANAR(Canalization-related Receptor-like kinase)一起与 PIN 生长素转运蛋白相互作用并使其磷酸化。camel 和 canar 突变体在 PIN1 亚细胞运输和生长素介导的 PIN 极化中受损,宏观上表现为受伤后叶脉和脉管系统再生的缺陷。CAMEL-CANAR 受体复合物是生长素反馈的一部分,在生长素通道化过程中协调单个细胞的极化。
更新日期:2020-10-29
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