Laboratoire de biologie intégrative des modèles marins | LBI2M

• Article dans une revue

Multiple, diverse endogenous giant virus elements within the genome of a brown alga

Dean Mckeown, Alexandre Cormier, Declan C Schroeder, Arnaud Couloux, Nachida Tadrent, J. Mark Cock, Erwan Corre

Endogenous viral elements (EVEs) have been found in diverse eukaryotic genomes. These elements are particularly frequent in the genomes of brown algae (Phaeophyceae) because these seaweeds are infected by viruses (Phaeovirus) of the phylum Nucleocytoviricota (NCV) that are capable of inserting into…

Virus Evolution, 2025, 11 (1), ⟨10.1093/ve/veaf009⟩. ⟨hal-04997831⟩

• Article dans une revue

Exploration of the extracellular matrix of the red alga Chondrus crispus reveals unprecedented insights into carrageenan structures

David Ropartz, Adrien Lissarrague, Murielle Jam, Diane Jouanneau, Bastien Annic, Sophie Le Gall, Mathieu Fanuel, Stacy Krueger-Hadfield, Myriam Valéro, Mirjam Czjzek, Hélène Rogniaux, Cécile Hervé

Carrageenans are major gel forming polysaccharides in the extracellular matrix of the red macroalga Chondrus crispus. These galactans are made of linear chains of repetitive disaccharide motifs based on d-galactose residues alternately linked by β-1,4 and α-1,3 glycosidic bonds. A definite number…

Carbohydrate Polymers, 2025, 348, pp.122737. ⟨10.1016/j.carbpol.2024.122737⟩. ⟨hal-04734206⟩

• Article dans une revue

Longitudinal growth of the Saccharina kelp embryo depends on actin filaments that control the formation of a corset-like structure composed of alginate

Samuel Boscq, Ioannis Theodorou, Roman Milstein, Aude Le Bail, Sabine Chenivesse, Bernard Billoud, Bénédicte Charrier

Scientific Reports, 2025, 15 (1), pp.1178. ⟨10.1038/s41598-024-83814-5⟩. ⟨hal-04886676⟩

• Article dans une revue

Identification and Characterization of a New Thermophilic κ‑Carrageenan Sulfatase

Nanna Rhein-Knudsen, Diego S Reyes-Weiss, Leesa J Klau, Alexandra Jeudy, Thomas Roret, Runar Stokke, Vincent G H Eijsink, Finn L Aachmann, Mirjam Czjzek, Svein Jarle Horn

Carrageenans are sulfated polysaccharides found in the cell wall of certain red seaweeds. They are widely used in the food industry for their gelling and stabilizing properties. In nature, carrageenans undergo enzymatic modification and degradation by marine organisms. Characterizing these enzymes…

Journal of Agricultural and Food Chemistry, 2025, 73, pp.2044 - 2055. ⟨10.1021/acs.jafc.4c09751⟩. ⟨hal-04923334⟩