ArticleJournal of experimental botany2020
Sigma factor 1 in chloroplast gene transcription and photosynthetic light acclimation.
Article in Journal of experimental botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 20 citations in OpenAlex.
- Regreening mechanisms in cucumber: insights from a CsSIG2 mutation affecting chloroplast development.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Chloroplast gene expression: Recent advances and perspectives.Plant communications · 2023Review
- Anterograde signaling controls plastid transcription via sigma factors separately from nuclear photosynthesis genes.Nature communications · 2022Article
- Article
- Photosystem stoichiometry adjustment is a photoreceptor-mediated process in Arabidopsis.Scientific reports · 2022Article
- Phospholipase D activation is required for 1-aminocyclopropane 1-carboxylic acid signaling during sexual reproduction in the marine red alga Neopyropia yezoensis (Rhodophyta).BMC plant biology · 2022Article
- Coordination of Chloroplast Activity with Plant Growth: Clues Point to TOR.Plants (Basel, Switzerland) · 2022Article
- A pentatricopeptide repeat protein DUA1 interacts with sigma factor 1 to regulate chloroplast gene expression in Rice.Photosynthesis research · 2021Article
- Gene Loss, Pseudogenization in Plastomes of GenusFrontiers in genetics · 2021Article
- Maize ANT1 modulates vascular development, chloroplast development, photosynthesis, and plant growth.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Variation in Maize Chlorophyll Biosynthesis Alters Plant Architecture.Plant physiology · 2020Article
- Deregulated High Affinity Copper Transport Alters Iron Homeostasis inFrontiers in plant science · 2020Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sigma factors are dissociable subunits of bacterial RNA polymerase that ensure efficient transcription initiation from gene promoters. Owing to their prokaryotic origin, chloroplasts possess a typical bacterial RNA polymerase together with its sigma factor subunit. The higher plant Arabidopsis thaliana contain as many as six sigma factors for the hundred or so of its chloroplast genes. The role of this relatively large number of transcription initiation factors for the miniature chloroplast genome, however, is not fully understood. Using two Arabidopsis T-DNA insertion mutants, we show that sigma factor 1 (SIG1) initiates transcription of a specific subset of chloroplast genes. We further show that the photosynthetic control of PSI reaction center gene transcription requires complementary regulation of the nuclear SIG1 gene at the transcriptional level. This SIG1 gene regulation is dependent on both a plastid redox signal and a light signal transduced by the phytochrome photoreceptor.
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