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首页> 外文期刊>Current Biology: CB >Construction of a Functional Casparian Strip in Non-endodermal Lineages Is Orchestrated by Two Parallel Signaling Systems in ce:italic>Arabidopsis thaliana/ce:italic>
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Construction of a Functional Casparian Strip in Non-endodermal Lineages Is Orchestrated by Two Parallel Signaling Systems in ce:italic>Arabidopsis thaliana/ce:italic>

机译：在＆ CE：斜视> rairicopsis thaliana和斜视>斜视>

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摘要

The Casparian strip in the root endodermis forms an apoplastic barrier between vascular tissues and outer ground tissues to enforce selective absorption of water and nutrients. Because of its cell-type specificity, the presence of a Casparian strip is used as a marker for a functional endodermis. Here, we examine the minimal regulators required for reprograming non-endodermal cells to build a functional Casparian strip. We demonstrate that the transcription factor SHORT-ROOT (SHR) serves as a master regulator and promotes Casparian strip formation through two independent activities: inducing the expression of essential Casparian strip enzymes via MYB36 and directing the subcellular localization of Casparian strip formation via SCARECROW (SCR). However, this hierarchical signaling cascade still needs SHR-independent small peptides, derived from the stele, to eventually build a functional Casparian strip in non-endodermal cells. Our study provides a synthetic approach to induce Casparian-strip-containing endodermis using a minimal network of regulators and reveals the deployment of both apoplastic and symplastic communication in the promotion of a specific cell fate.
机译：根内胚层中的尸体条形在血管组织和外层组织之间形成吻合屏障，以强制选择性吸收水和营养。由于其细胞型特异性，尸体条的存在用作功能性内霉菌的标志物。在这里，我们检查重编程非内胚层细胞以构建功能尸体条的最小调节剂。我们证明了转录因子短根（SHR）用作主调节器，通过两个独立活动促进尸体条形：通过MYB36诱导必需尸体剥离酶的表达，并通过稻草人指导尸体剥离形成的亚细胞定位（SCR ）。然而，该层级信号级联仍然需要衍生自碑位的SHR独立的小肽，最终在非内胚层细胞中构建功能性堆垛处。我们的研究提供了一种合成方法，用于使用最小的调节器网络诱导含肉谱条的内胚层，并揭示在促进特定细胞命运中的妊娠和互相通信的部署。

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  • 来源
    《Current Biology: CB》 |2018年第17期|共12页
  • 作者

    Pengxue Li; Qiaozhi Yu; Xu Gu; Chunmiao Xu; Shilian Qi; Hong Wang; Fenglin Zhong; Tobias I. Baskin; Abidur Rahman; Shuang Wu;

  • 作者单位

    College of Horticulture FAFU-UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology Fujian Agriculture and Forestry University;

    College of Horticulture FAFU-UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology Fujian Agriculture and Forestry University;

    College of Horticulture FAFU-UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology Fujian Agriculture and Forestry University;

    College of Horticulture FAFU-UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology Fujian Agriculture and Forestry University;

    College of Horticulture FAFU-UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology Fujian Agriculture and Forestry University;

    College of Horticulture FAFU-UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology Fujian Agriculture and Forestry University;

    College of Horticulture FAFU-UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology Fujian Agriculture and Forestry University;

    Biology Department University of Massachusetts;

    Department of Plant Bio Sciences Faculty of Agriculture Iwate University Morioka;

    College of Horticulture FAFU-UCR Joint Center and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology Fujian Agriculture and Forestry University;

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  • 原文格式 PDF
  • 正文语种 other
  • 中图分类 生物科学;
  • 关键词

    Casparian strip; cell-fate reprograming; cell differentiation; root; endodermis; SHR; MYB36; SCR; cell-to-cell communication; small peptide signaling;

    机译：尸体条;细胞 - 命运重新编程;细胞分化;根;endodermis;shr;myb36;scr;细胞到细胞通信;小肽信号;

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