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The DELLA Proteins Influence the Expression of Cytokinin Biosynthesis and Response Genes During Nodulation
The key event that initiates nodule organogenesis is the perception of bacterial signal molecules, the Nod factors, triggering a complex of responses in epidermal and cortical cells of the root. The Nod factor signaling pathway interacts with plant hormones, including cytokinins and gibberellins. Ac...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6465611/ https://www.ncbi.nlm.nih.gov/pubmed/31024597 http://dx.doi.org/10.3389/fpls.2019.00432 |
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author | Dolgikh, Alexandra V. Kirienko, Anna N. Tikhonovich, Igor A. Foo, Eloise Dolgikh, Elena A. |
author_facet | Dolgikh, Alexandra V. Kirienko, Anna N. Tikhonovich, Igor A. Foo, Eloise Dolgikh, Elena A. |
author_sort | Dolgikh, Alexandra V. |
collection | PubMed |
description | The key event that initiates nodule organogenesis is the perception of bacterial signal molecules, the Nod factors, triggering a complex of responses in epidermal and cortical cells of the root. The Nod factor signaling pathway interacts with plant hormones, including cytokinins and gibberellins. Activation of cytokinin signaling through the homeodomain-containing transcription factors KNOX is essential for nodule formation. The main regulators of gibberellin signaling, the DELLA proteins are also involved in regulation of nodule formation. However, the interaction between the cytokinin and gibberellin signaling pathways is not fully understood. Here, we show in Pisum sativum L. that the DELLA proteins can activate the expression of KNOX and BELL transcription factors involved in regulation of cytokinin metabolic and response genes. Consistently, pea la cry-s (della1 della2) mutant showed reduced ability to upregulate expression of some cytokinin metabolic genes during nodulation. Our results suggest that DELLA proteins may regulate cytokinin metabolism upon nodulation. |
format | Online Article Text |
id | pubmed-6465611 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-64656112019-04-25 The DELLA Proteins Influence the Expression of Cytokinin Biosynthesis and Response Genes During Nodulation Dolgikh, Alexandra V. Kirienko, Anna N. Tikhonovich, Igor A. Foo, Eloise Dolgikh, Elena A. Front Plant Sci Plant Science The key event that initiates nodule organogenesis is the perception of bacterial signal molecules, the Nod factors, triggering a complex of responses in epidermal and cortical cells of the root. The Nod factor signaling pathway interacts with plant hormones, including cytokinins and gibberellins. Activation of cytokinin signaling through the homeodomain-containing transcription factors KNOX is essential for nodule formation. The main regulators of gibberellin signaling, the DELLA proteins are also involved in regulation of nodule formation. However, the interaction between the cytokinin and gibberellin signaling pathways is not fully understood. Here, we show in Pisum sativum L. that the DELLA proteins can activate the expression of KNOX and BELL transcription factors involved in regulation of cytokinin metabolic and response genes. Consistently, pea la cry-s (della1 della2) mutant showed reduced ability to upregulate expression of some cytokinin metabolic genes during nodulation. Our results suggest that DELLA proteins may regulate cytokinin metabolism upon nodulation. Frontiers Media S.A. 2019-04-09 /pmc/articles/PMC6465611/ /pubmed/31024597 http://dx.doi.org/10.3389/fpls.2019.00432 Text en Copyright © 2019 Dolgikh, Kirienko, Tikhonovich, Foo and Dolgikh. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Plant Science Dolgikh, Alexandra V. Kirienko, Anna N. Tikhonovich, Igor A. Foo, Eloise Dolgikh, Elena A. The DELLA Proteins Influence the Expression of Cytokinin Biosynthesis and Response Genes During Nodulation |
title | The DELLA Proteins Influence the Expression of Cytokinin Biosynthesis and Response Genes During Nodulation |
title_full | The DELLA Proteins Influence the Expression of Cytokinin Biosynthesis and Response Genes During Nodulation |
title_fullStr | The DELLA Proteins Influence the Expression of Cytokinin Biosynthesis and Response Genes During Nodulation |
title_full_unstemmed | The DELLA Proteins Influence the Expression of Cytokinin Biosynthesis and Response Genes During Nodulation |
title_short | The DELLA Proteins Influence the Expression of Cytokinin Biosynthesis and Response Genes During Nodulation |
title_sort | della proteins influence the expression of cytokinin biosynthesis and response genes during nodulation |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6465611/ https://www.ncbi.nlm.nih.gov/pubmed/31024597 http://dx.doi.org/10.3389/fpls.2019.00432 |
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