ArticleThe New phytologist2017
Integration of light and circadian signals that regulate chloroplast transcription by a nuclear-encoded sigma factor.
Article in The New phytologist, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed, 55 citations in OpenAlex.
- Turning over a green leaf: integrating light signals toward chloroplast establishment.Plant physiology · 2026Review
- An unrecognized host response to microbial exposure resets circadian timing.bioRxiv : the preprint server for biology · 2026Article
- Genome-Wide Identification of Sigma Factors inInternational journal of molecular sciences · 2026Article
- A duo of fungi and complex and dynamic bacterial community networks contribute to shape the Ascophyllum nodosum holobiont.Environmental microbiome · 2025Article
- Metabolism in Sync: The Circadian Clock, a Central Hub for Light-Driven Chloroplastic and Mitochondrial Entrainment.Plants (Basel, Switzerland) · 2025Review
- Identification and Expression Characteristics of the Cryptochrome Gene Family inPlants (Basel, Switzerland) · 2025Article
- OGU: A Toolbox for Better Utilising Organelle Genomic Data.Molecular ecology resources · 2025Article
- Regreening mechanisms in cucumber: insights from a CsSIG2 mutation affecting chloroplast development.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Circadian and environmental signal integration in a natural population ofProceedings of the National Academy of Sciences of the United States of America · 2024Article
- Diurnal-Rhythmic Relationships between Physiological Parameters and Photosynthesis- and Antioxidant-Enzyme Genes Expression in the RaphidophyteAntioxidants (Basel, Switzerland) · 2024Article
- Light quality regulates plant biomass and fruit quality through a photoreceptor-dependent HY5-LHC/CYCB module in tomato.Horticulture research · 2023Article
- The circadian clock of the bacteriumScience advances · 2023Article
- Low-temperature and circadian signals are integrated by the sigma factor SIG5.Nature plants · 2023Article
- Anterograde signaling controls plastid transcription via sigma factors separately from nuclear photosynthesis genes.Nature communications · 2022Article
- The circadian night depression of photosynthesis analyzed in a herb, Pulmonaria vallarsae. Day/night quantitative relationships.Photosynthesis research · 2022Article
- Chronobiology Meets Quantum Biology: A New Paradigm Overlooking the Horizon?Frontiers in physiology · 2022Review
- Article
- The Role of Chloroplast Gene Expression in Plant Responses to Environmental Stress.International journal of molecular sciences · 2020Review
- Overexpression of chloroplast-targeted ferrochelatase 1 results in aPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Article
- Cytosolic GLUTAMINE SYNTHETASE1;1 Modulates Metabolism and Chloroplast Development in Roots.Plant physiology · 2020Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We investigated the signalling pathways that regulate chloroplast transcription in response to environmental signals. One mechanism controlling plastid transcription involves nuclear-encoded sigma subunits of plastid-encoded plastid RNA polymerase. Transcripts encoding the sigma factor SIG5 are regulated by light and the circadian clock. However, the extent to which a chloroplast target of SIG5 is regulated by light-induced changes in SIG5 expression is unknown. Moreover, the photoreceptor signalling pathways underlying the circadian regulation of chloroplast transcription by SIG5 are unidentified. We monitored the regulation of chloroplast transcription in photoreceptor and sigma factor mutants under controlled light regimes in Arabidopsis thaliana. We established that a chloroplast transcriptional response to light intensity was mediated by SIG5; a chloroplast transcriptional response to the relative proportions of red and far red light was regulated by SIG5 through phytochrome and photosynthetic signals; and the circadian regulation of chloroplast transcription by SIG5 was predominantly dependent on blue light and cryptochrome. Our experiments reveal the extensive integration of signals concerning the light environment by a single sigma factor to regulate chloroplast transcription. This may originate from an evolutionarily ancient mechanism that protects photosynthetic bacteria from high light stress, which subsequently became integrated with higher plant phototransduction networks.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.