ArticlePlant molecular biology2006
Natural synchronisation for the study of cell division in the green unicellular alga Ostreococcus tauri.
Article in Plant molecular biology, 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, 37 citations in OpenAlex.
- Cell Cycle Dynamics in the MicroalgaCells · 2024Article
- Article
- The synthetic future of algal genomes.Cell genomics · 2024Review
- Genetic and physiological responses to light quality in a deep ocean ecotype of Ostreococcus, an ecologically important photosynthetic picoeukaryote.Journal of experimental botany · 2023Article
- A phospho-dawn of protein modification anticipates light onset in the picoeukaryote Ostreococcus tauri.Journal of experimental botany · 2023Article
- In Silico and Cellular Differences Related to the Cell Division Process between the A and B Races of the Colonial MicroalgaBiomolecules · 2021Article
- The medium-size noncoding RNA transcriptome ofNAR genomics and bioinformatics · 2020Article
- Simplified Transformation ofGenes · 2019Article
- Prasinovirus Attack of Ostreococcus Is Furtive by Day but Savage by Night.Journal of virology · 2018Article
- Metabolic profiling identifies trehalose as an abundant and diurnally fluctuating metabolite in the microalgaMetabolomics : Official journal of the Metabolomic Society · 2017Article
- Responses of the picoprasinophyte Micromonas commoda to light and ultraviolet stress.PloS one · 2017Article
- A Viral Immunity Chromosome in the Marine Picoeukaryote, Ostreococcus tauri.PLoS pathogens · 2016Article
- Diurnal Transcriptional Regulation of Endosymbiotically Derived Genes in the Chlorarachniophyte Bigelowiella natans.Genome biology and evolution · 2016Article
- The reduced kinome of Ostreococcus tauri: core eukaryotic signalling components in a tractable model species.BMC genomics · 2014Article
- Alteration of chromium effect on photosystem II activity in Chlamydomonas reinhardtii cultures under different synchronized state of the cell cycle.Environmental science and pollution research international · 2013Article
- Evolution of codon usage in the smallest photosynthetic eukaryotes and their giant viruses.Genome biology and evolution · 2013Article
- Organization of the smallest eukaryotic spindle.Current biology : CB · 2011Article
- Genes of the most conserved WOX clade in plants affect root and flower development in Arabidopsis.BMC evolutionary biology · 2008Article
- 3-D ultrastructure of O. tauri: electron cryotomography of an entire eukaryotic cell.PloS one · 2007Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ostreococcus tauri (Prasinophyceae) is a marine unicellular green alga which diverged early in the green lineage. The interest of O. tauri as a potential model to study plant cell division is based on its key phylogenetic position, its simple binary division, a very simple cellular organisation and now the availability of the full genome sequence. In addition O. tauri has a minimal yet complete set of cell cycle control genes. Here we show that division can be naturally synchronised by light/dark cycles and that organelles divide before the nucleus. This natural synchronisation, although being only partial, enables the study of the expression of CDKs throughout the cell cycle. The expression patterns of OtCDKA and OtCDKB were determined both at the mRNA and protein levels. The single OtCDKA gene is constantly expressed throughout the cell cycle, whereas OtCDKB is highly regulated and expressed only in S/G2/M phases. More surprisingly, OtCDKA is not phosphorylated at the tyrosine residue, in contrast to OtCDKB which is strongly phosphorylated during cell division. OtCDKA kinase activity appears before the S phase, indicating a possible role of this protein in the G1/S transition. OtCDKB kinase activity occurs later than OtCDKA, and its tyrosine phosphorylation is correlated to G2/M, suggesting a possible control of the mitotic activity. To our knowledge this is the first organism in the green lineage which showed CDKB tyrosine phosphorylation during cell cycle progression.
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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 OpenQuestion graph.