Nigel Grimsley
YOU?
Author Swipe
View article: Genomic analysis of <i>Ostreococcus tauri</i>-infecting viruses reveals a hypervariable region associated with host–virus interactions
Genomic analysis of <i>Ostreococcus tauri</i>-infecting viruses reveals a hypervariable region associated with host–virus interactions Open
While the genus Prasinovirus , known to infect prasinophyte green algae (class Mamiellophyceae), is abundant in the oceans, the genetic mechanisms governing the ecology and (co)evolution of these viruses remain poorly understood. In this s…
View article: Temperature-driven biogeography of marine giant viruses infecting picoeukaryotes <i>Micromonas</i>
Temperature-driven biogeography of marine giant viruses infecting picoeukaryotes <i>Micromonas</i> Open
Climate shapes the biogeography of microbial and viral communities in the ocean. Among abiotic factors, temperature is one of the main drivers of microbial community distribution. However, we lack knowledge on how temperature shapes the li…
View article: Predicting global distributions of eukaryotic plankton communities from satellite data
Predicting global distributions of eukaryotic plankton communities from satellite data Open
Satellite remote sensing is a powerful tool to monitor the global dynamics of marine plankton. Previous research has focused on developing models to predict the size or taxonomic groups of phytoplankton. Here, we present an approach to ide…
View article: Ocean-wide comparisons of mesopelagic planktonic community structures
Ocean-wide comparisons of mesopelagic planktonic community structures Open
For decades, marine plankton have been investigated for their capacity to modulate biogeochemical cycles and provide fishery resources. Between the sunlit (epipelagic) layer and the deep dark waters, lies a vast and heterogeneous part of t…
View article: Validation of ‘Picochlorum costavermella Hemon & Grimsley’ nom. inval. (Trebouxiophyceae) isolated from the northwestern Mediterranean Sea.
Validation of ‘Picochlorum costavermella Hemon & Grimsley’ nom. inval. (Trebouxiophyceae) isolated from the northwestern Mediterranean Sea. Open
International audience
View article: Cryptic and abundant marine viruses at the evolutionary origins of Earth’s RNA virome
Cryptic and abundant marine viruses at the evolutionary origins of Earth’s RNA virome Open
Whereas DNA viruses are known to be abundant, diverse, and commonly key ecosystem players, RNA viruses are insufficiently studied outside disease settings. In this study, we analyzed ≈28 terabases of Global Ocean RNA sequences to expand Ea…
View article: Evolutionary genomics of sex-related chromosomes at the base of the green lineage 2
Evolutionary genomics of sex-related chromosomes at the base of the green lineage 2 Open
International audience
View article: Evolutionary Genomics of Sex-Related Chromosomes at the Base of the Green Lineage
Evolutionary Genomics of Sex-Related Chromosomes at the Base of the Green Lineage Open
Although sex is now accepted as a ubiquitous and ancestral feature of eukaryotes, direct observation of sex is still lacking in most unicellular eukaryotic lineages. Evidence of sex is frequently indirect and inferred from the identificati…
View article: Adaptive evolution of viruses infecting marine microalgae (haptophytes), from acute infections to stable coexistence
Adaptive evolution of viruses infecting marine microalgae (haptophytes), from acute infections to stable coexistence Open
Collectively known as phytoplankton, photosynthetic microbes form the base of the marine food web, and account for up to half of the primary production on Earth. Haptophytes are key components of this phytoplankton community, playing impor…
View article: Features of the Opportunistic Behaviour of the Marine Bacterium Marinobacter algicola in the Microalga Ostreococcus tauri Phycosphere
Features of the Opportunistic Behaviour of the Marine Bacterium Marinobacter algicola in the Microalga Ostreococcus tauri Phycosphere Open
Although interactions between microalgae and bacteria are observed in both natural environment and the laboratory, the modalities of coexistence of bacteria inside microalgae phycospheres in laboratory cultures are mostly unknown. Here, we…
View article: Combining Nanopore and Illumina Sequencing Permits Detailed Analysis of Insertion Mutations and Structural Variations Produced by PEG-Mediated Transformation in Ostreococcus tauri
Combining Nanopore and Illumina Sequencing Permits Detailed Analysis of Insertion Mutations and Structural Variations Produced by PEG-Mediated Transformation in Ostreococcus tauri Open
Ostreococcus tauri is a simple unicellular green alga representing an ecologically important group of phytoplankton in oceans worldwide. Modern molecular techniques must be developed in order to understand the mechanisms that permit adapta…
View article: Combining Nanopore and Illumina Sequencing Permits Detailed Analysis of Insertion Mutations and Structural Variations Produced by PEG-Mediated Transformation in <em>Ostreococcus tauri</em>
Combining Nanopore and Illumina Sequencing Permits Detailed Analysis of Insertion Mutations and Structural Variations Produced by PEG-Mediated Transformation in <em>Ostreococcus tauri</em> Open
Ostreococcus tauri is a simple unicellular green alga representing an ecologically important group of phytoplankton in oceans worldwide. Modern molecular techniques must be developed in order to understand the mechanisms that permit adapta…
View article: Responses to iron oxide and zinc oxide nanoparticles in echinoderm embryos and microalgae: uptake, growth, morphology, and transcriptomic analysis
Responses to iron oxide and zinc oxide nanoparticles in echinoderm embryos and microalgae: uptake, growth, morphology, and transcriptomic analysis Open
We investigated the toxicity of Iron oxide and Zinc oxide engineered nanoparticles (ENPs) on Paracentrotus lividus sea urchin embryos and three species of microalgae. Morphological responses, internalization, and potential impacts of Fe2O3…
View article: The medium-size noncoding RNA transcriptome of Ostreococcus tauri, the smallest living eukaryote, reveals a large family of small nucleolar RNAs displaying multiple genomic expression strategies
The medium-size noncoding RNA transcriptome of Ostreococcus tauri, the smallest living eukaryote, reveals a large family of small nucleolar RNAs displaying multiple genomic expression strategies Open
The small nucleolar RNAs (snoRNAs), essential for ribosome biogenesis, constitute a major family of medium-size noncoding RNAs (mncRNAs) in all eukaryotes. We present here, for the first time in a marine unicellular alga, the characterizat…
View article: Visualization of Viral Infection Dynamics in a Unicellular Eukaryote and Quantification of Viral Production Using Virus Fluorescence in situ Hybridization
Visualization of Viral Infection Dynamics in a Unicellular Eukaryote and Quantification of Viral Production Using Virus Fluorescence in situ Hybridization Open
One of the major challenges in viral ecology is to assess the impact of viruses in controlling the abundance of specific hosts in the environment. To this end, techniques that enable the detection and quantification of virus-host interacti…
View article: Virus-host coexistence in phytoplankton through the genomic lens
Virus-host coexistence in phytoplankton through the genomic lens Open
A dynamic accordion chromosome may promote sustained production of giant viruses by the smallest photosynthetic eukaryote.
View article: Responses to iron oxide and zinc oxide nanoparticles in echinoderm embryos and microalgae: uptake, growth, morphology, and transcriptomic analysis
Responses to iron oxide and zinc oxide nanoparticles in echinoderm embryos and microalgae: uptake, growth, morphology, and transcriptomic analysis Open
We investigated the toxicity of Iron oxide and Zinc oxide engineered nanoparticles (ENPs) on Paracentrotus lividus sea urchin embryos and three species of microalgae. Morphological responses, internalization, and potential impacts of Fe2O3…
View article: Responses to iron oxide and zinc oxide nanoparticles in echinoderm embryos and microalgae: uptake, growth, morphology, and transcriptomic analysis
Responses to iron oxide and zinc oxide nanoparticles in echinoderm embryos and microalgae: uptake, growth, morphology, and transcriptomic analysis Open
We investigated the toxicity of Iron oxide and Zinc oxide engineered nanoparticles (ENPs) on Paracentrotus lividus sea urchin embryos and three species of microalgae. Morphological responses, internalization, and potential impacts of Fe2O3…
View article: Responses to iron oxide and zinc oxide nanoparticles in echinoderm embryos and microalgae: uptake, growth, morphology, and transcriptomic analysis
Responses to iron oxide and zinc oxide nanoparticles in echinoderm embryos and microalgae: uptake, growth, morphology, and transcriptomic analysis Open
We investigated the toxicity of Iron oxide and Zinc oxide engineered nanoparticles (ENPs) on Paracentrotus lividus sea urchin embryos and three species of microalgae. Morphological responses, internalization, and potential impacts of Fe2O3…
View article: Visualization of viral infection dynamics in a unicellular eukaryote and quantification of viral production using VirusFISH
Visualization of viral infection dynamics in a unicellular eukaryote and quantification of viral production using VirusFISH Open
One of the major challenges in viral ecology is to assess the impact of viruses in controlling the abundance of specific hosts in the environment. For this, techniques that enable the detection and quantification of virus–host interactions…
View article: Single cell ecogenomics reveals mating types of individual cells and ssDNA viral infections in the smallest photosynthetic eukaryotes
Single cell ecogenomics reveals mating types of individual cells and ssDNA viral infections in the smallest photosynthetic eukaryotes Open
Planktonic photosynthetic organisms of the class Mamiellophyceae include the smallest eukaryotes (less than 2 µm), are globally distributed and form the basis of coastal marine ecosystems. Eight complete fully annotated 13–22 Mb genomes fr…
View article: Simplified Transformation of Ostreococcus tauri Using Polyethylene Glycol
Simplified Transformation of Ostreococcus tauri Using Polyethylene Glycol Open
Ostreococcus tauri is an easily cultured representative of unicellular algae (class Mamiellophyceae) that abound in oceans worldwide. Eight complete 13–22 Mb genomes of phylogenetically divergent species within this class are available, an…
View article: Community‐Level Responses to Iron Availability in Open Ocean Plankton Ecosystems
Community‐Level Responses to Iron Availability in Open Ocean Plankton Ecosystems Open
Predicting responses of plankton to variations in essential nutrients is hampered by limited in situ measurements, a poor understanding of community composition, and the lack of reference gene catalogs for key taxa. Iron is a key driver of…
View article: Virus-host coexistence in phytoplankton through the genomic lens
Virus-host coexistence in phytoplankton through the genomic lens Open
Phytoplankton-virus interactions are major determinants of geochemical cycles in the oceans. Viruses are responsible for the redirection of carbon and nutrients away from larger organisms back towards microorganisms via the lysis of microa…
View article: Supplementary material from "Single Cell Ecogenomics reveals mating types of individual cells and ssDNA viral infections in the Smallest Photosynthetic Eukaryotes"
Supplementary material from "Single Cell Ecogenomics reveals mating types of individual cells and ssDNA viral infections in the Smallest Photosynthetic Eukaryotes" Open
Planktonic photosynthetic organisms of the class Mamiellophyceae include the smallest eukaryotes (less than 2 µm), are globally distributed and form the basis of coastal marine ecosystems. Eight complete fully annotated 13–22 Mb genomes fr…
View article: Plastid, mitochondrion and nuclear genome coverage in 12 Ostreococcus tauri strains and estimation of mitochondrial and plastid genome copy number per haploid nuclear genome. from Single Cell Ecogenomics reveals mating types of individual cells and ssDNA viral infections in the Smallest Photosynthetic Eukaryotes
Plastid, mitochondrion and nuclear genome coverage in 12 Ostreococcus tauri strains and estimation of mitochondrial and plastid genome copy number per haploid nuclear genome. from Single Cell Ecogenomics reveals mating types of individual cells and ssDNA viral infections in the Smallest Photosynthetic Eukaryotes Open
Planktonic photosynthetic organisms of the class Mamiellophyceae include the smallest eukaryotes (less than 2 µm), are globally distributed and form the basis of coastal marine ecosystems. Eight complete fully annotated 13–22 Mb genomes fr…