ArticlePlant molecular biology1994
Control of lhc gene transcription by the circadian clock in Chlamydomonas reinhardtii.
Article in Plant molecular biology, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed.
- Transcriptome Profiling Revealed Light-Mediated Gene Expression Patterns of Plants in Forest Vertical Structures.Biology · 2025Article
- Systems-wide analysis revealed shared and unique responses to moderate and acute high temperatures in the green alga Chlamydomonas reinhardtii.Communications biology · 2022Article
- High-Resolution Profiling of a Synchronized Diurnal Transcriptome from Chlamydomonas reinhardtii Reveals Continuous Cell and Metabolic Differentiation.The Plant cell · 2015Article
- Article
- Clock genes and diurnal transcriptome dynamics in summer and winter in the gymnosperm Japanese cedar (Cryptomeria japonica (L.f.) D.Don).BMC plant biology · 2014Article
- Prevalence, evolution, and cis-regulation of diel transcription in Chlamydomonas reinhardtii.G3 (Bethesda, Md.) · 2014Article
- Circadian regulation of chloroplast transcription in Chlamydomonas is accompanied by little or no fluctuation in RPOD levels or core RNAP activity.Molecular biology reports · 2012Article
- Identification of novel clock-controlled genes by cDNA macroarray analysis in Chlamydomonas reinhardtii.Plant molecular biology · 2005Article
- A horizontally acquired group II intron in the chloroplast psbA gene of a psychrophilic Chlamydomonas: in vitro self-splicing and genetic evidence for maturase activity.RNA (New York, N.Y.) · 2004Article
- Structure, circadian regulation and bioinformatic analysis of the unique sigma factor gene in Chlamydomonas reinhardtii.Photosynthesis research · 2004Article
- Mutagenesis of a light-regulated psbA intron reveals the importance of efficient splicing for photosynthetic growth.Nucleic acids research · 2003Article
- Article
- Assessing the relative importance of light and the circadian clock in controlling chloroplast translation in Chlamydomonas reinhardtii.Photosynthesis research · 2002Article
- Requirement for cytoplasmic protein synthesis during circadian peaks of transcription of chloroplast-encoded genes in Chlamydomonas.Plant molecular biology · 2000Article
- Overexpression of ATP sulfurylase in indian mustard leads to increased selenate uptake, reduction, and tolerancePlant physiology · 1999Article
- Article
- Evidence for light/redox-regulated splicing of psbA pre-RNAs in Chlamydomonas chloroplasts.RNA (New York, N.Y.) · 1997Article
- Circadian expression of the carbonic anhydrase gene, Cah1, in Chlamydomonas reinhardtii.Plant molecular biology · 1996Article
- The Chlamydomonas reinhardtii LI818 gene represents a distant relative of the cabI/II genes that is regulated during the cell cycle and in response to illumination.Plant molecular biology · 1996Article
- Transcription of CABII is regulated by the biological clock in Chlamydomonas reinhardtii.Plant molecular biology · 1996Article
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2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Transcription of nuclear lhc genes has been shown to be under circadian clock control in angiosperms. but many aspects of this regulation have not been elucidated. Unicellular organisms, such as the green alga Chlamydomonas reinhardtii, offer significant advantages for the study of cellular clocks. Therefore, we have asked whether lhc gene expression is regulated by a circadian clock in C. reinhardtii. The mRNA for a photosystem I chlorophyll a/b apoprotein showed a strong diurnal rhythm in cells growing under 12 h/12 h light/dark (LD) cycles; the mRNA accumulated and then declined during the light period reaching very low levels at mid-dark. A similar diurnal pattern was documented for rbcS mRNA. In LD-grown cells shifted to continuous light, the ca. 24 h rhythm of lhca1 mRNA continued for at least 2 cycles. In LD-grown cells shifted to continuous darkness the rhythm of lhca1, but not rbcS2, mRNA also continued, although at lower absolute levels than in LD-grown cells. Also, in the cells shifted to continuous dark, the lhca1 mRNA rhythm persisted in the absence of significant cell division. Pulse-labelling with 32PO4 and sensitivity to actinomycin D demonstrated that control of lhca1 (and rbcS) is mainly transcriptional. However, it was also shown that the half-life of lhca1 mRNA (and rbcS2) is short (1-2 h) and may also vary somewhat during a cycle. We conclude that a cellular, circadian clock regulates lhca1 transcription in C. reinhardtii.
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