ArticlePhotosynthesis research2021
A pentatricopeptide repeat protein DUA1 interacts with sigma factor 1 to regulate chloroplast gene expression in Rice.
Article in Photosynthesis research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 13 citations in OpenAlex.
- Cold-sensitive chloroplast development: advances from chloroplast ribosome-deficient mutants.Planta · 2026Review
- Pentatricopeptide repeat proteins in crops: Advances in functional mechanisms and breeding applications.Journal of integrative plant biology · 2026Review
- SlPPR138-mediated RNA editing ofHorticulture research · 2025Article
- Inorganic carbon levels regulate growth via SigC signaling cascade in cyanobacteria.The New phytologist · 2025Article
- ESSENTIAL MEIOTIC ENDONUCLEASE 1 is required for chloroplast development and DNA repair in rice.Plant biotechnology journal · 2025Article
- PPR proteins in plants: roles, mechanisms, and prospects for rice research.Frontiers in plant science · 2024Review
- An Insight Into Pentatricopeptide-Mediated Chloroplast NecrosisFrontiers in genetics · 2022Article
- Research Progress of PPR Proteins in RNA Editing, Stress Response, Plant Growth and Development.Frontiers in genetics · 2021Review
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
Chloroplast gene expression is controlled by both plastid-encoded RNA polymerase (PEP) and nuclear-encoded RNA polymerase and is crucial for chloroplast development and photosynthesis. Environmental factors such as light and temperature can influence transcription in chloroplasts. In this study, we showed that mutation in DUA1, which encodes a pentatricopeptide repeat (PPR) protein in rice (Oryza sativa), led to deficiency in chloroplast development and chlorophyll biosynthesis, impaired photosystems, and reduced expression of PEP-dependent transcripts at low temperature especially under low-light conditions. Furthermore, we demonstrated that sigma factor OsSIG1 interacted with DUA1 in vitro and in vivo. Moreover, the levels of chlorophyll and PEP-dependent gene expression were significantly decreased in the Ossig1 mutants at low-temperature and low-light conditions. Our study reveals that the PPR protein DUA1 plays an important role in regulating PEP-mediated chloroplast gene expression through interacting with OsSIG1, thus modulates chloroplast development in response to environmental signals.
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Registered trials
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 Socratic graph.