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Label free - Shotgun proteomic analysis of the unicellular alga Ostreococcus tauri

ABSTRACT: usoluble fraction 24h dark

INSTRUMENT(S): LTQ Orbitrap, instrument model

ORGANISM(S): Ostreococcus Tauri

SUBMITTER: Thierry Le Bihan

PROVIDER: PRD000307 | Pride | 2012-03-05

REPOSITORIES: Pride

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			Action	DRS
	PRIDE_Exp_Complete_Ac_13750.pride.mgf.gz	Mgf
	PRIDE_Exp_Complete_Ac_13750.pride.mztab.gz	Mztab
	PRIDE_Exp_Complete_Ac_13750.xml.gz	Xml

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Publications

Shotgun proteomic analysis of the unicellular alga Ostreococcus tauri.

Le Bihan Thierry T Martin Sarah F SF Chirnside Eliane S ES van Ooijen Gerben G Barrios-Llerena Martin E ME O'Neill John S JS Shliaha Pavel V PV Kerr Lorraine E LE Millar Andrew J AJ

Journal of proteomics 20110524 10

Ostreococcus tauri is a unicellular green alga and amongst the smallest and simplest free-living eukaryotes. The O. tauri genome sequence was determined in 2006. Molecular, physiological and taxonomic data that has been generated since then highlight its potential as a simple model species for algae and plants. However, its proteome remains largely unexplored. This paper describes the global proteomic study of O. tauri, using mass spectrometry-based approaches: phosphopeptide enrichment, cellula ...[more]

PMID: 21635980

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Shotgun proteomic analysis of the unicellular alga Ostreococcus tauri

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Circadian rhythms study of the unicellular algae Ostreococcus tauri by shotgun proteomics

Project description:The overall set of experiments consist of sampling a culture of the unicellular algae Ostreococcus tauri (wild type) every 4 hours over a period of 24h (6 time points). Each time point was performed with 5 replicate culture flasks, the cultures were grown under a 12:12 hour cycle (light:dark).

2022-12-01 | PXD001735 | Pride

Circadian rhythms study of the unicellular algae Ostreococcus tauri by shotgun proteomics

2022-12-01 | PXD001734 | Pride

Circadian rhythms study of the unicellular algae Ostreococcus tauri by shotgun proteomics, sampling under dark condition.

2022-12-01 | PXD002874 | Pride

Circadian rhythms study of the unicellular algae Ostreococcus tauri by shotgun proteomics, sampling under dark condition.

2022-12-01 | PXD002906 | Pride

Circadian rhythms study of the unicellular algae Ostreococcus tauri by shotgun proteomics: Dark adaptation, Global proteomics.

Project description:The overall set of experiments consist of sampling a culture of the unicellular algae Ostreococcus tauri (wild type) every 24 hours for 4 time points(ZT24, ZT48, ZT72 and ZT96). Each time point was performed with 5 replicate culture flasks, the cultures were grown under dark conditions. This proteome is associated to the transition from an 12:12 light:dark to a dark:dark regime.

2022-12-01 | PXD002909 | Pride

Life-cycle and genome of OtV5, a large DNA virus of the pelagic marine unicellular green alga Ostreococcus tauri.

Project description:Large DNA viruses are ubiquitous, infecting diverse organisms ranging from algae to man, and have probably evolved from an ancient common ancestor. In aquatic environments, such algal viruses control blooms and shape the evolution of biodiversity in phytoplankton, but little is known about their biological functions. We show that Ostreococcus tauri, the smallest known marine photosynthetic eukaryote, whose genome is completely characterized, is a host for large DNA viruses, and present an analysis of the life-cycle and 186,234 bp long linear genome of OtV5. OtV5 is a lytic phycodnavirus which unexpectedly does not degrade its host chromosomes before the host cell bursts. Analysis of its complete genome sequence confirmed that it lacks expected site-specific endonucleases, and revealed the presence of 16 genes whose predicted functions are novel to this group of viruses. OtV5 carries at least one predicted gene whose protein closely resembles its host counterpart and several other host-like sequences, suggesting that horizontal gene transfers between host and viral genomes may occur frequently on an evolutionary scale. Fifty seven percent of the 268 predicted proteins present no similarities with any known protein in Genbank, underlining the wealth of undiscovered biological diversity present in oceanic viruses, which are estimated to harbour 200Mt of carbon.

| S-EPMC2386258 | biostudies-literature

Ostreococcus tauri

Project description:Genome wide rhythmic transcription under light/dark cycles in Ostreococcus tauri

| PRJNA116365 | ENA

Prasinoviruses of the marine green alga Ostreococcus tauri are mainly species specific.

Project description:Prasinoviruses infecting unicellular green algae in the order Mamiellales (class Mamiellophyceae) are commonly found in coastal marine waters where their host species frequently abound. We tested 40 Ostreococcus tauri viruses on 13 independently isolated wild-type O. tauri strains, 4 wild-type O. lucimarinus strains, 1 Ostreococcus sp. ("Ostreococcus mediterraneus") clade D strain, and 1 representative species of each of two other related species of Mamiellales, Bathycoccus prasinos and Micromonas pusilla. Thirty-four out of 40 viruses infected only O. tauri, 5 could infect one other species of the Ostreococcus genus, and 1 infected two other Ostreococcus spp., but none of them infected the other genera. We observed that the overall susceptibility pattern of Ostreococcus strains to viruses was related to the size of two host chromosomes known to show intraspecific size variations, that genetically related viruses tended to infect the same host strains, and that viruses carrying inteins were strictly strain specific. Comparison of two complete O. tauri virus proteomes revealed at least three predicted proteins to be candidate viral specificity determinants.

| S-EPMC3318615 | biostudies-literature

Genome wide rhythmic transcription under light/dark cycles in Ostreococcus tauri

Project description:Genome wide rhythmic transcription under light/dark cycles is associated with sequential transcription of specific biological processes genes in Ostreococcus tauri. Transcriptional profiling of Ostreococcus tauri under light/dark cycles. In order to identify genes with a diurnal rhythm, cells entrained under 12:12 light/dark cycles were sampled every 3 hours for 27 hours with two overlapping time points at Time 9 (Light ON at Time 9; Light OFF at Time 21) in 3 independent experiments.

2010-04-20 | GSE16422 | GEO

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