ArticlePlant physiology2013
Multiple checkpoints for the expression of the chloroplast-encoded splicing factor MatK.
Article in Plant physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Comparative complete chloroplast genome analysis ofFrontiers in plant science · 2026Article
- Structural bioinformatics and gene expression analysis of maturase K fromFrontiers in molecular biosciences · 2025Article
- The First Complete Chloroplast Genome ofGenes · 2023Article
- Phylogenomics and plastome evolution ofFrontiers in plant science · 2023Article
- Comparative Analyses of Plastomes of FourGenes · 2022Article
- Comprehensive analysis of plastid gene expression during fruit development and ripening of kiwifruit.Plant cell reports · 2022Article
- Complete chloroplast genome sequences of three aroideae species (Araceae): lights into selective pressure, marker development and phylogenetic relationships.BMC genomics · 2022Article
- Transcriptome skimming of lentil (Lens culinaris Medikus) cultivars with contrast reaction to salt stress.Functional & integrative genomics · 2021Article
- Chloroplast Translation: Structural and Functional Organization, Operational Control, and Regulation.The Plant cell · 2018Review
- Global RNA association with the transcriptionally active chromosome of chloroplasts.Plant molecular biology · 2017Article
- Alternative translation initiation codons for the plastid maturase MatK: unraveling the pseudogene misconception in the Orchidaceae.BMC evolutionary biology · 2015Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The chloroplast genome of land plants contains only a single gene for a splicing factor, Maturase K (MatK). To better understand the regulation of matK gene expression, we quantitatively investigated the expression of matK across tobacco (Nicotiana tabacum) development at the transcriptional, posttranscriptional, and protein levels. We observed striking discrepancies of MatK protein and matK messenger RNA levels in young tissue, suggestive of translational regulation or altered protein stability. We furthermore found increased matK messenger RNA stability in mature tissue, while other chloroplast RNAs tested showed little changes. Finally, we quantitatively measured MatK-intron interactions and found selective changes in the interaction of MatK with specific introns during plant development. This is evidence for a direct role of MatK in the regulation of chloroplast gene expression via splicing. We furthermore modeled a simplified matK gene expression network mathematically. The model reflects our experimental data and suggests future experimental perturbations to pinpoint regulatory checkpoints.
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