The DELLA proteins interact with MYB21 and MYB24 to regulate filament elongation in Arabidopsis

BACKGROUND: Gibberellin (GA) and jasmonate (JA) are two essential phytohormones for filament elongation in Arabidopsis. GA and JA trigger degradation of DELLAs and JASMONATE ZIM-domain (JAZ) proteins through SCF(SLY1) and SCF(COI1) separately to activate filament elongation. In JA pathway, JAZs inte...

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Autores principales: Huang, Huang, Gong, Yilong, Liu, Bei, Wu, Dewei, Zhang, Min, Xie, Daoxin, Song, Susheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2020
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7006197/
https://www.ncbi.nlm.nih.gov/pubmed/32033528
http://dx.doi.org/10.1186/s12870-020-2274-0
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author Huang, Huang
Gong, Yilong
Liu, Bei
Wu, Dewei
Zhang, Min
Xie, Daoxin
Song, Susheng
author_facet Huang, Huang
Gong, Yilong
Liu, Bei
Wu, Dewei
Zhang, Min
Xie, Daoxin
Song, Susheng
author_sort Huang, Huang
collection PubMed
description BACKGROUND: Gibberellin (GA) and jasmonate (JA) are two essential phytohormones for filament elongation in Arabidopsis. GA and JA trigger degradation of DELLAs and JASMONATE ZIM-domain (JAZ) proteins through SCF(SLY1) and SCF(COI1) separately to activate filament elongation. In JA pathway, JAZs interact with MYB21 and MYB24 to control filament elongation. However, little is known how DELLAs regulate filament elongation. RESULTS: Here we showed that DELLAs interact with MYB21 and MYB24, and that R2R3 domains of MYB21 and MYB24 are responsible for interaction with DELLAs. Furthermore, we demonstrated that DELLA and JAZ proteins coordinately repress the transcriptional function of MYB21 and MYB24 to inhibit filament elongation. CONCLUSION: We discovered that DELLAs interact with MYB21 and MYB24, and that DELLAs and JAZs attenuate the transcriptional function of MYB21 and MYB24 to control filament elongation. This study reveals a novel cross-talk mechanism of GA and JA in the regulation of filament elongation in Arabidopsis.
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spelling pubmed-70061972020-02-11 The DELLA proteins interact with MYB21 and MYB24 to regulate filament elongation in Arabidopsis Huang, Huang Gong, Yilong Liu, Bei Wu, Dewei Zhang, Min Xie, Daoxin Song, Susheng BMC Plant Biol Research Article BACKGROUND: Gibberellin (GA) and jasmonate (JA) are two essential phytohormones for filament elongation in Arabidopsis. GA and JA trigger degradation of DELLAs and JASMONATE ZIM-domain (JAZ) proteins through SCF(SLY1) and SCF(COI1) separately to activate filament elongation. In JA pathway, JAZs interact with MYB21 and MYB24 to control filament elongation. However, little is known how DELLAs regulate filament elongation. RESULTS: Here we showed that DELLAs interact with MYB21 and MYB24, and that R2R3 domains of MYB21 and MYB24 are responsible for interaction with DELLAs. Furthermore, we demonstrated that DELLA and JAZ proteins coordinately repress the transcriptional function of MYB21 and MYB24 to inhibit filament elongation. CONCLUSION: We discovered that DELLAs interact with MYB21 and MYB24, and that DELLAs and JAZs attenuate the transcriptional function of MYB21 and MYB24 to control filament elongation. This study reveals a novel cross-talk mechanism of GA and JA in the regulation of filament elongation in Arabidopsis. BioMed Central 2020-02-07 /pmc/articles/PMC7006197/ /pubmed/32033528 http://dx.doi.org/10.1186/s12870-020-2274-0 Text en © The Author(s). 2020 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research Article
Huang, Huang
Gong, Yilong
Liu, Bei
Wu, Dewei
Zhang, Min
Xie, Daoxin
Song, Susheng
The DELLA proteins interact with MYB21 and MYB24 to regulate filament elongation in Arabidopsis
title The DELLA proteins interact with MYB21 and MYB24 to regulate filament elongation in Arabidopsis
title_full The DELLA proteins interact with MYB21 and MYB24 to regulate filament elongation in Arabidopsis
title_fullStr The DELLA proteins interact with MYB21 and MYB24 to regulate filament elongation in Arabidopsis
title_full_unstemmed The DELLA proteins interact with MYB21 and MYB24 to regulate filament elongation in Arabidopsis
title_short The DELLA proteins interact with MYB21 and MYB24 to regulate filament elongation in Arabidopsis
title_sort della proteins interact with myb21 and myb24 to regulate filament elongation in arabidopsis
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7006197/
https://www.ncbi.nlm.nih.gov/pubmed/32033528
http://dx.doi.org/10.1186/s12870-020-2274-0
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