ArticlePlanta2006
Development- and tissue-specific expression of the RpoT gene family of Arabidopsis encoding mitochondrial and plastid RNA polymerases.
Article in Planta, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 40 citations in OpenAlex.
- Professor Thomas Börner: the pioneer of molecular plant genetics in East Germany turns 80!Molecular genetics and genomics : MGG · 2026Article
- Membranous Interacting Partners of Phage-Type Plastid RNA Polymerase Have Limited Impact on Plastid Gene Expression During Chloroplast Development.Plant direct · 2026Article
- Overexpression of RPOTmp Being Targeted to Either Mitochondria or Chloroplasts inInternational journal of molecular sciences · 2024Article
- PARN-like Proteins Regulate Gene Expression in Land Plant Mitochondria by Modulating mRNA Polyadenylation.International journal of molecular sciences · 2021Review
- Arabidopsis Plastid-RNA Polymerase RPOTp Is Involved in Abiotic Stress Tolerance.Plants (Basel, Switzerland) · 2020Article
- The plastid transcription machinery and its coordination with the expression of nuclear genome: Plastid-Encoded Polymerase, Nuclear-Encoded Polymerase and the Genomes Uncoupled 1-mediated retrograde communication.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Review
- Opposite roles of the Arabidopsis cytokinin receptors AHK2 and AHK3 in the expression of plastid genes and genes for the plastid transcriptional machinery during senescence.Plant molecular biology · 2017Article
- Plastid encoded RNA polymerase activity and expression of photosynthesis genes required for embryo and seed development in Arabidopsis.Frontiers in plant science · 2014Article
- The primary transcriptome of barley chloroplasts: numerous noncoding RNAs and the dominating role of the plastid-encoded RNA polymerase.The Plant cell · 2012Article
- Phage-type RNA polymerase RPOTmp performs gene-specific transcription in mitochondria of Arabidopsis thaliana.The Plant cell · 2009Article
- Genome-wide analysis of plastid gene expression in potato leaf chloroplasts and tuber amyloplasts: transcriptional and posttranscriptional control.Plant physiology · 2009Article
- Article
- Intraplastidial trafficking of a phage-type RNA polymerase is mediated by a thylakoid RING-H2 protein.Proceedings of the National Academy of Sciences of the United States of America · 2008Article
- Impaired function of the phage-type RNA polymerase RpoTp in transcription of chloroplast genes is compensated by a second phage-type RNA polymerase.Nucleic acids research · 2008Article
- Mitochondrial biogenesis and function in Arabidopsis.The arabidopsis book · 2008Article
- Disruption of the psbA gene by the copy correction mechanism reveals that the expression of plastid-encoded genes is regulated by photosynthesis activity.Journal of plant research · 2007Article
- Arabidopsis phage-type RNA polymerases: accurate in vitro transcription of organellar genes.The Plant cell · 2007Article
- Building up of the plastid transcriptional machinery during germination and early plant development.Plant physiology · 2006Article
- The SCABRA3 nuclear gene encodes the plastid RpoTp RNA polymerase, which is required for chloroplast biogenesis and mesophyll cell proliferation in Arabidopsis.Plant physiology · 2006Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Arabidopsis thaliana possesses three RpoT genes which encode three different phage-type RNA polymerases with yet unknown function in organelle transcription: RpoTm and RpoTp, imported into mitochondria and plastids, respectively, and RpoTmp, co-targeted into both organelles. Expression of the RpoT genes was analyzed by quantitative RT-PCR, histochemical beta-glucuronidase (GUS) assays and in situ hybridization. Transcripts of all three RpoT genes accumulated to very low amounts in all organs. Surprisingly, RT-PCR revealed their highest levels in flower tissues. RpoTm transcripts were the most abundant in all organs, except mature leaves, in which RpoTp transcripts showed the highest accumulation. In the developing seedling, RpoTm::GUS and RpoTmp::GUS expression precedes that of RpoTp::GUS, the latter showing up only 7 days after germination. The RpoTm and RpoTmp promoters expressed GUS mainly in meristematic and mitochondria-rich cells such as the distal part of the root and companion cells flanking the phloem, whereas RpoTp::GUS activity was found in green tissues as the parenchyme cells of young leaves, the primary cortex of the stem, and sepals of buds and young flowers. Sites of GUS expression coincided spatially with those of in situ hybridization. Our data demonstrate an overlapping expression pattern of RpoTm and RpoTmp, and a completely differing pattern of RpoTp expression. The results suggest that RpoTm and RpoTmp recognize different types of mitochondrial promoters. The plastid polymerase RpoTp might play a major role in green tissue, i.e. in chloroplast transcription, whilst the dual-targeted RpoTmp in plastids should function mainly in the transcription of genes in non-green types.
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