Céline Orvain

Dim blue light drives reversible fucoxanthin derivative accumulation in the pelagophyte Pelagomonas calceolata

This study shows that dim blue light causes reversible accumulation of 19'-BFx in Pelagomonas calceolata, highlighting its role in photoacclimation.

Genomics-based quantitative biogeography of marine plankton

This study generates absolute estimates of plankton cell concentrations and carbon biomass using environmental genomic data, revealing ecological associations and quantitative biogeographies of photosynthetic lineages.

Molecular response of the diatom Coscinodiscus granii and its co-occurring dictyochophyte during Lagenisma coscinodisci parasite infection

The paper investigates the molecular responses of the diatom Coscinodiscus granii and its co-occurring dictyochophyte during infection by the oomycete Lagenisma coscinodisci, revealing effector mechanisms and host defense pathways.

Nitrogen metabolism in the picoalga Pelagomonas calceolata: disentangling cyanate lyase function under different nutrient conditions.

This study investigates cyanate lyase function in Pelagomonas calceolata under different nutrient conditions, finding it reduces intracellular cyanate toxicity rather than metabolizing extracellular cyanate.

Bringing large scale top-down metabolic modelling to eukaryotes with PhotoEukStein: a meta-model for unicellular phototrophs

The paper introduces PhotoEukStein, a meta-model for unicellular phototrophic eukaryotes, enabling automated derivation of genome-scale metabolic models from genomes to predict functional traits.

Male differentiation in the marine copepod Oithona nana reveals the development of a new nervous ganglion linked to Lin12-Notch-Repeat protein-associated proteolysis

The paper identifies male-specific nervous ganglia and LDPGs in Oithona nana, linking them to proteolysis and male-specific physiology.

Proteolysis and neurogenesis modulated by LNR domain proteins explosion support male differentiation in the crustacean Oithona nana

The paper investigates sexual dimorphism in Oithona nana by analyzing transcriptomic and protein-protein interaction data, finding male-specific enrichment in LNR domain proteins and pathways related to proteolysis and neurogenesis.

Serial horizontal transfer of vitamin-biosynthetic genes enables the establishment of new nutritional symbionts in aphids’ di-symbiotic systems

The paper investigates horizontal gene transfer in aphid symbionts, showing how B-vitamin biosynthesis genes are transferred between bacteria to establish new nutritional symbioses.

A Freeloader?: The Highly Eroded Yet Large Genome of the Serratia symbiotica symbiont of Cinara strobi

The paper identifies a third bacterial symbiont in Cinara strobi aphids and shows that S. symbiotica has a highly eroded genome, suggesting ongoing symbiont replacement.