DuNiuLiuEtAl2017

Reference

Du, R., Niu, S., Liu, Y., Sun, X., Porth, I., El-Kassaby, Y.A. and Li, W. (2017) The gibberellin GID1-DELLA signalling module exists in evolutionarily ancient conifers. Scientific Reports, 7(1). (Scopus )

Abstract

Gibberellins (GAs) participate in controlling various aspects of basic plant growth responses. With the exception of bryophytes, GA signalling in land plants, such as lycophytes, ferns and angiosperms, is mediated via GIBBERELLIN-INSENSITIVE DWARF1 (GID1) and DELLA proteins. To explore whether this GID1-DELLA mechanism is present in pines, we cloned an orthologue (PtGID1) of Arabidopsis AtGID1a and two putative DELLA proteins (PtDPL; PtRGA) from Pinus tabuliformis, a widespread indigenous conifer species in China, and studied their recombinant proteins. PtGID1 shares with AtGID1a the conserved HSL motifs for GA binding and an N-terminal feature that are essential for interaction with DELLA proteins. Indeed, A. thaliana 35S:PtGID1 overexpressors showed a strong GA-hypersensitive phenotype compared to the wild type. Interactions between PtGID1 and PtDELLAs, but also interactions between the conifer-angiosperm counterparts (i.e. between AtGID1 and PtDELLAs and between PtGID1 and AtDELLA), were detected in vivo. This demonstrates that pine has functional GID1-DELLA components. The Δ17-domains within PtDPL and PtRGA were identified as potential interaction sites within PtDELLAs. Our results show that PtGID1 has the ability to interact with DELLA and functions as a GA receptor. Thus, a GA-GID1-DELLA signalling module also operates in evolutionarily ancient conifers. © 2017 The Author(s).

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@ARTICLE { DuNiuLiuEtAl2017,
    AUTHOR = { Du, R. and Niu, S. and Liu, Y. and Sun, X. and Porth, I. and El-Kassaby, Y.A. and Li, W. },
    TITLE = { The gibberellin GID1-DELLA signalling module exists in evolutionarily ancient conifers },
    JOURNAL = { Scientific Reports },
    YEAR = { 2017 },
    VOLUME = { 7 },
    NUMBER = { 1 },
    NOTE = { cited By 0 },
    ABSTRACT = { Gibberellins (GAs) participate in controlling various aspects of basic plant growth responses. With the exception of bryophytes, GA signalling in land plants, such as lycophytes, ferns and angiosperms, is mediated via GIBBERELLIN-INSENSITIVE DWARF1 (GID1) and DELLA proteins. To explore whether this GID1-DELLA mechanism is present in pines, we cloned an orthologue (PtGID1) of Arabidopsis AtGID1a and two putative DELLA proteins (PtDPL; PtRGA) from Pinus tabuliformis, a widespread indigenous conifer species in China, and studied their recombinant proteins. PtGID1 shares with AtGID1a the conserved HSL motifs for GA binding and an N-terminal feature that are essential for interaction with DELLA proteins. Indeed, A. thaliana 35S:PtGID1 overexpressors showed a strong GA-hypersensitive phenotype compared to the wild type. Interactions between PtGID1 and PtDELLAs, but also interactions between the conifer-angiosperm counterparts (i.e. between AtGID1 and PtDELLAs and between PtGID1 and AtDELLA), were detected in vivo. This demonstrates that pine has functional GID1-DELLA components. The Δ17-domains within PtDPL and PtRGA were identified as potential interaction sites within PtDELLAs. Our results show that PtGID1 has the ability to interact with DELLA and functions as a GA receptor. Thus, a GA-GID1-DELLA signalling module also operates in evolutionarily ancient conifers. © 2017 The Author(s). },
    AFFILIATION = { Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Forest Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China; Science and Technology Development Center, State Forestry Administration, Beijing, China; Département des Sciences du Bois et de la Forêt, Faculté de Foresterie, De Géographie et de Géomatique, Université Laval Canada, 1030 Avenue de la Médecine, Québec, Québec, Canada; Department of Forest Sciences, Faculty of Forestry, University of British, 2424 Main Mall, Vancouver, BC, Canada },
    ART_NUMBER = { 16637 },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1038/s41598-017-11859-w },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85036641573&doi=10.1038%2fs41598-017-11859-w&partnerID=40&md5=01c14ab15c62da346486d36a1f8491ae },
}

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