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The NF-YC–RGL2 module integrates GA and ABA signalling to regulate seed germination in Arabidopsis

The antagonistic crosstalk between gibberellic acid (GA) and abscisic acid (ABA) plays a pivotal role in the modulation of seed germination. However, the molecular mechanism of such phytohormone interaction remains largely elusive. Here we show that three Arabidopsis NUCLEAR FACTOR-Y C (NF-YC) homol...

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Autores principales: Liu, Xu, Hu, Pengwei, Huang, Mingkun, Tang, Yang, Li, Yuge, Li, Ling, Hou, Xingliang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5027291/
https://www.ncbi.nlm.nih.gov/pubmed/27624486
http://dx.doi.org/10.1038/ncomms12768
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author Liu, Xu
Hu, Pengwei
Huang, Mingkun
Tang, Yang
Li, Yuge
Li, Ling
Hou, Xingliang
author_facet Liu, Xu
Hu, Pengwei
Huang, Mingkun
Tang, Yang
Li, Yuge
Li, Ling
Hou, Xingliang
author_sort Liu, Xu
collection PubMed
description The antagonistic crosstalk between gibberellic acid (GA) and abscisic acid (ABA) plays a pivotal role in the modulation of seed germination. However, the molecular mechanism of such phytohormone interaction remains largely elusive. Here we show that three Arabidopsis NUCLEAR FACTOR-Y C (NF-YC) homologues NF-YC3, NF-YC4 and NF-YC9 redundantly modulate GA- and ABA-mediated seed germination. These NF-YCs interact with the DELLA protein RGL2, a key repressor of GA signalling. The NF-YC–RGL2 module targets ABI5, a gene encoding a core component of ABA signalling, via specific CCAAT elements and collectively regulates a set of GA- and ABA-responsive genes, thus controlling germination. These results suggest that the NF-YC–RGL2–ABI5 module integrates GA and ABA signalling pathways during seed germination.
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spelling pubmed-50272912016-09-23 The NF-YC–RGL2 module integrates GA and ABA signalling to regulate seed germination in Arabidopsis Liu, Xu Hu, Pengwei Huang, Mingkun Tang, Yang Li, Yuge Li, Ling Hou, Xingliang Nat Commun Article The antagonistic crosstalk between gibberellic acid (GA) and abscisic acid (ABA) plays a pivotal role in the modulation of seed germination. However, the molecular mechanism of such phytohormone interaction remains largely elusive. Here we show that three Arabidopsis NUCLEAR FACTOR-Y C (NF-YC) homologues NF-YC3, NF-YC4 and NF-YC9 redundantly modulate GA- and ABA-mediated seed germination. These NF-YCs interact with the DELLA protein RGL2, a key repressor of GA signalling. The NF-YC–RGL2 module targets ABI5, a gene encoding a core component of ABA signalling, via specific CCAAT elements and collectively regulates a set of GA- and ABA-responsive genes, thus controlling germination. These results suggest that the NF-YC–RGL2–ABI5 module integrates GA and ABA signalling pathways during seed germination. Nature Publishing Group 2016-09-14 /pmc/articles/PMC5027291/ /pubmed/27624486 http://dx.doi.org/10.1038/ncomms12768 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Liu, Xu
Hu, Pengwei
Huang, Mingkun
Tang, Yang
Li, Yuge
Li, Ling
Hou, Xingliang
The NF-YC–RGL2 module integrates GA and ABA signalling to regulate seed germination in Arabidopsis
title The NF-YC–RGL2 module integrates GA and ABA signalling to regulate seed germination in Arabidopsis
title_full The NF-YC–RGL2 module integrates GA and ABA signalling to regulate seed germination in Arabidopsis
title_fullStr The NF-YC–RGL2 module integrates GA and ABA signalling to regulate seed germination in Arabidopsis
title_full_unstemmed The NF-YC–RGL2 module integrates GA and ABA signalling to regulate seed germination in Arabidopsis
title_short The NF-YC–RGL2 module integrates GA and ABA signalling to regulate seed germination in Arabidopsis
title_sort nf-yc–rgl2 module integrates ga and aba signalling to regulate seed germination in arabidopsis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5027291/
https://www.ncbi.nlm.nih.gov/pubmed/27624486
http://dx.doi.org/10.1038/ncomms12768
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