Cargando…
REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis
As sessile organisms, plants have to continuously adjust growth and development to ever-changing environmental conditions. At the end of the growing season, annual plants induce leaf senescence to reallocate nutrients and energy-rich substances from the leaves to the maturing seeds. Thus, leaf senes...
Autores principales: | , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Company of Biologists
2014
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4299279/ https://www.ncbi.nlm.nih.gov/pubmed/25395454 http://dx.doi.org/10.1242/dev.117689 |
_version_ | 1782353371962802176 |
---|---|
author | Xie, Yakun Huhn, Kerstin Brandt, Ronny Potschin, Maren Bieker, Stefan Straub, Daniel Doll, Jasmin Drechsler, Thomas Zentgraf, Ulrike Wenkel, Stephan |
author_facet | Xie, Yakun Huhn, Kerstin Brandt, Ronny Potschin, Maren Bieker, Stefan Straub, Daniel Doll, Jasmin Drechsler, Thomas Zentgraf, Ulrike Wenkel, Stephan |
author_sort | Xie, Yakun |
collection | PubMed |
description | As sessile organisms, plants have to continuously adjust growth and development to ever-changing environmental conditions. At the end of the growing season, annual plants induce leaf senescence to reallocate nutrients and energy-rich substances from the leaves to the maturing seeds. Thus, leaf senescence is a means with which to increase reproductive success and is therefore tightly coupled to the developmental age of the plant. However, senescence can also be induced in response to sub-optimal growth conditions as an exit strategy, which is accompanied by severely reduced yield. Here, we show that class III homeodomain leucine zipper (HD-ZIPIII) transcription factors, which are known to be involved in basic pattern formation, have an additional role in controlling the onset of leaf senescence in Arabidopsis. Several potential direct downstream genes of the HD-ZIPIII protein REVOLUTA (REV) have known roles in environment-controlled physiological processes. We report that REV acts as a redox-sensitive transcription factor, and directly and positively regulates the expression of WRKY53, a master regulator of age-induced leaf senescence. HD-ZIPIII proteins are required for the full induction of WRKY53 in response to oxidative stress, and mutations in HD-ZIPIII genes strongly delay the onset of senescence. Thus, a crosstalk between early and late stages of leaf development appears to contribute to reproductive success. |
format | Online Article Text |
id | pubmed-4299279 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | The Company of Biologists |
record_format | MEDLINE/PubMed |
spelling | pubmed-42992792015-01-29 REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis Xie, Yakun Huhn, Kerstin Brandt, Ronny Potschin, Maren Bieker, Stefan Straub, Daniel Doll, Jasmin Drechsler, Thomas Zentgraf, Ulrike Wenkel, Stephan Development Research Articles As sessile organisms, plants have to continuously adjust growth and development to ever-changing environmental conditions. At the end of the growing season, annual plants induce leaf senescence to reallocate nutrients and energy-rich substances from the leaves to the maturing seeds. Thus, leaf senescence is a means with which to increase reproductive success and is therefore tightly coupled to the developmental age of the plant. However, senescence can also be induced in response to sub-optimal growth conditions as an exit strategy, which is accompanied by severely reduced yield. Here, we show that class III homeodomain leucine zipper (HD-ZIPIII) transcription factors, which are known to be involved in basic pattern formation, have an additional role in controlling the onset of leaf senescence in Arabidopsis. Several potential direct downstream genes of the HD-ZIPIII protein REVOLUTA (REV) have known roles in environment-controlled physiological processes. We report that REV acts as a redox-sensitive transcription factor, and directly and positively regulates the expression of WRKY53, a master regulator of age-induced leaf senescence. HD-ZIPIII proteins are required for the full induction of WRKY53 in response to oxidative stress, and mutations in HD-ZIPIII genes strongly delay the onset of senescence. Thus, a crosstalk between early and late stages of leaf development appears to contribute to reproductive success. The Company of Biologists 2014-12-15 /pmc/articles/PMC4299279/ /pubmed/25395454 http://dx.doi.org/10.1242/dev.117689 Text en © 2014. Published by The Company of Biologists Ltd http://creativecommons.org/licenses/by/3.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed. |
spellingShingle | Research Articles Xie, Yakun Huhn, Kerstin Brandt, Ronny Potschin, Maren Bieker, Stefan Straub, Daniel Doll, Jasmin Drechsler, Thomas Zentgraf, Ulrike Wenkel, Stephan REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis |
title | REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis |
title_full | REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis |
title_fullStr | REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis |
title_full_unstemmed | REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis |
title_short | REVOLUTA and WRKY53 connect early and late leaf development in Arabidopsis |
title_sort | revoluta and wrky53 connect early and late leaf development in arabidopsis |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4299279/ https://www.ncbi.nlm.nih.gov/pubmed/25395454 http://dx.doi.org/10.1242/dev.117689 |
work_keys_str_mv | AT xieyakun revolutaandwrky53connectearlyandlateleafdevelopmentinarabidopsis AT huhnkerstin revolutaandwrky53connectearlyandlateleafdevelopmentinarabidopsis AT brandtronny revolutaandwrky53connectearlyandlateleafdevelopmentinarabidopsis AT potschinmaren revolutaandwrky53connectearlyandlateleafdevelopmentinarabidopsis AT biekerstefan revolutaandwrky53connectearlyandlateleafdevelopmentinarabidopsis AT straubdaniel revolutaandwrky53connectearlyandlateleafdevelopmentinarabidopsis AT dolljasmin revolutaandwrky53connectearlyandlateleafdevelopmentinarabidopsis AT drechslerthomas revolutaandwrky53connectearlyandlateleafdevelopmentinarabidopsis AT zentgrafulrike revolutaandwrky53connectearlyandlateleafdevelopmentinarabidopsis AT wenkelstephan revolutaandwrky53connectearlyandlateleafdevelopmentinarabidopsis |