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Low-temperature and circadian signals are integrated by the sigma factor SIG5
Chloroplasts are a common feature of plant cells and aspects of their metabolism, including photosynthesis, are influenced by low-temperature conditions. Chloroplasts contain a small circular genome that encodes essential components of the photosynthetic apparatus and chloroplast transcription/trans...
Autores principales: | , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10119024/ https://www.ncbi.nlm.nih.gov/pubmed/36997687 http://dx.doi.org/10.1038/s41477-023-01377-1 |
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author | Cano-Ramirez, Dora L. Panter, Paige E. Takemura, Tokiaki de Fraine, Tara Saskia de Barros Dantas, Luíza Lane Dekeya, Richard Barros-Galvão, Thiago Paajanen, Pirita Bellandi, Annalisa Batstone, Tom Manley, Bethan F. Tanaka, Kan Imamura, Sousuke Franklin, Keara A. Knight, Heather Dodd, Antony N. |
author_facet | Cano-Ramirez, Dora L. Panter, Paige E. Takemura, Tokiaki de Fraine, Tara Saskia de Barros Dantas, Luíza Lane Dekeya, Richard Barros-Galvão, Thiago Paajanen, Pirita Bellandi, Annalisa Batstone, Tom Manley, Bethan F. Tanaka, Kan Imamura, Sousuke Franklin, Keara A. Knight, Heather Dodd, Antony N. |
author_sort | Cano-Ramirez, Dora L. |
collection | PubMed |
description | Chloroplasts are a common feature of plant cells and aspects of their metabolism, including photosynthesis, are influenced by low-temperature conditions. Chloroplasts contain a small circular genome that encodes essential components of the photosynthetic apparatus and chloroplast transcription/translation machinery. Here, we show that in Arabidopsis, a nuclear-encoded sigma factor that controls chloroplast transcription (SIGMA FACTOR5) contributes to adaptation to low-temperature conditions. This process involves the regulation of SIGMA FACTOR5 expression in response to cold by the bZIP transcription factors ELONGATED HYPOCOTYL5 and ELONGATED HYPOCOTYL5 HOMOLOG. The response of this pathway to cold is gated by the circadian clock, and it enhances photosynthetic efficiency during long-term cold and freezing exposure. We identify a process that integrates low-temperature and circadian signals, and modulates the response of chloroplasts to low-temperature conditions. |
format | Online Article Text |
id | pubmed-10119024 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-101190242023-04-22 Low-temperature and circadian signals are integrated by the sigma factor SIG5 Cano-Ramirez, Dora L. Panter, Paige E. Takemura, Tokiaki de Fraine, Tara Saskia de Barros Dantas, Luíza Lane Dekeya, Richard Barros-Galvão, Thiago Paajanen, Pirita Bellandi, Annalisa Batstone, Tom Manley, Bethan F. Tanaka, Kan Imamura, Sousuke Franklin, Keara A. Knight, Heather Dodd, Antony N. Nat Plants Article Chloroplasts are a common feature of plant cells and aspects of their metabolism, including photosynthesis, are influenced by low-temperature conditions. Chloroplasts contain a small circular genome that encodes essential components of the photosynthetic apparatus and chloroplast transcription/translation machinery. Here, we show that in Arabidopsis, a nuclear-encoded sigma factor that controls chloroplast transcription (SIGMA FACTOR5) contributes to adaptation to low-temperature conditions. This process involves the regulation of SIGMA FACTOR5 expression in response to cold by the bZIP transcription factors ELONGATED HYPOCOTYL5 and ELONGATED HYPOCOTYL5 HOMOLOG. The response of this pathway to cold is gated by the circadian clock, and it enhances photosynthetic efficiency during long-term cold and freezing exposure. We identify a process that integrates low-temperature and circadian signals, and modulates the response of chloroplasts to low-temperature conditions. Nature Publishing Group UK 2023-03-30 2023 /pmc/articles/PMC10119024/ /pubmed/36997687 http://dx.doi.org/10.1038/s41477-023-01377-1 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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 images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Cano-Ramirez, Dora L. Panter, Paige E. Takemura, Tokiaki de Fraine, Tara Saskia de Barros Dantas, Luíza Lane Dekeya, Richard Barros-Galvão, Thiago Paajanen, Pirita Bellandi, Annalisa Batstone, Tom Manley, Bethan F. Tanaka, Kan Imamura, Sousuke Franklin, Keara A. Knight, Heather Dodd, Antony N. Low-temperature and circadian signals are integrated by the sigma factor SIG5 |
title | Low-temperature and circadian signals are integrated by the sigma factor SIG5 |
title_full | Low-temperature and circadian signals are integrated by the sigma factor SIG5 |
title_fullStr | Low-temperature and circadian signals are integrated by the sigma factor SIG5 |
title_full_unstemmed | Low-temperature and circadian signals are integrated by the sigma factor SIG5 |
title_short | Low-temperature and circadian signals are integrated by the sigma factor SIG5 |
title_sort | low-temperature and circadian signals are integrated by the sigma factor sig5 |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10119024/ https://www.ncbi.nlm.nih.gov/pubmed/36997687 http://dx.doi.org/10.1038/s41477-023-01377-1 |
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