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    A Jasmonate Signaling Network Activates Root Stem Cells and Promotes Regeneration

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    Zhou et al Cell accepted.pdf
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    14.77Mb
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    Accepted Manuscript
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    Type
    Article
    Authors
    Zhou, Wenkun
    Lozano-Torres, Jose L.
    Blilou, Ikram cc
    Zhang, Xiaoyue
    Zhai, Qingzhe
    Smant, Geert
    Li, Chuanyou
    Scheres, Ben
    KAUST Department
    Biological and Environmental Science and Engineering (BESE) Division
    Center for Desert Agriculture
    Plant Science
    Date
    2019-04-04
    Online Publication Date
    2019-04-04
    Print Publication Date
    2019-05
    Permanent link to this record
    http://hdl.handle.net/10754/631887
    
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    Abstract
    Plants are sessile and have to cope with environmentally induced damage through modification of growth and defense pathways. How tissue regeneration is triggered in such responses and whether this involves stem cell activation is an open question. The stress hormone jasmonate (JA) plays well-established roles in wounding and defense responses. JA also affects growth, which is hitherto interpreted as a trade-off between growth and defense. Here, we describe a molecular network triggered by wound-induced JA that promotes stem cell activation and regeneration. JA regulates organizer cell activity in the root stem cell niche through the RBR-SCR network and stress response protein ERF115. Moreover, JA-induced ERF109 transcription stimulates CYCD6;1 expression, functions upstream of ERF115, and promotes regeneration. Soil penetration and response to nematode herbivory induce and require this JA-mediated regeneration response. Therefore, the JA tissue damage response pathway induces stem cell activation and regeneration and activates growth after environmental stress.
    Citation
    Zhou W, Lozano-Torres JL, Blilou I, Zhang X, Zhai Q, et al. (2019) A Jasmonate Signaling Network Activates Root Stem Cells and Promotes Regeneration. Cell. Available: http://dx.doi.org/10.1016/j.cell.2019.03.006.
    Sponsors
    We thank Lieven de Veylder, Cheng-Bin Xiang, Lin Xu, Philip Benfey, Laurent Laplaze, James A.H. Murray, Roberto Solano, and the Nottingham Arabidopsis Stock Centre for sharing research materials. We thank Casper van Schaik and Axel Kuil for experimental help. We greatly appreciated helpful discussions with Jaap Bakker, Jian Xu, Niko Geldner, and all members from the Scheres lab. This work was supported by the National Basic Research Program of China (2015CB942900 to C.L.), an EMBO long-term fellowship (ALTF 784-2014 to W.Z.), a NWO domain Applied and Engineering Sciences VENI grant (14250 to J.L.L.-T.), and the National Natural Science Foundation of China (31730010 to C.L.).
    Publisher
    Elsevier BV
    Journal
    Cell
    DOI
    10.1016/j.cell.2019.03.006
    Additional Links
    https://www.sciencedirect.com/science/article/pii/S0092867419302685
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.cell.2019.03.006
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Center for Desert Agriculture

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