Professor, Sorbonne University

Photo Id FL 2019

Professor at Sorbonne University

Comparative ecophysiology of marine invertebrates


François Lallier obtained his Ph.D at the University of Bordeaux in 1988, on the comparative physiology of crustacean respiration (Carcinus, Penaeus). He then studied the adaptations of marine invertebrates subservient to deep hydrothermal vents, extreme environments where annelids (Riftia, Alvinella), crustaceans (Rimicaris) and molluscs (Bathymodiolus, Calyptogena) have developed symbiosis with chemotropic bacteria to to be able to prosper. Starting from targeted studies on the adaptation of these animals to their oxygen-deficient and sulphide-rich environments, he is now developing more global approaches, analysing variations in gene expression in relation to the symbiotic lifestyle in these extreme environments.

He is Professor at Sorbonne University (Paris 6), assigned to the Biological Station of Roscoff in Brittany, in the 'Adaptation and Diversity in the Marine Environment' laboratory, joint CNRS research unit that he has directed until 2018. He has also led a national research network, ECCHIS, bringing together French scientists working on the Biology of Deep Chemosynthetic Ecosystems, and has been the leader of several oceanographic campaigns. He has published nearly 80 articles.

He teaches in animal biology, especially comparative physiology and marine biology, for undergraduate and Master degree students. He is responsible for the "Ecophysiology and Ecotoxicology" specialty of the Master Degree.




Piquet B., Shillito B., Lallier F.H., Duperron S. & Andersen A.C. 2019. High rates of apoptosis visualized in the symbiont-bearing gills of deep-sea Bathymodiolusmussels. PLoS ONE, accepted.

Détrée C., Haddad I., Demey-Thomas E., Vinh J., Lallier F.H., Tanguy A. & Mary J. 2019. Global host molecular perturbations upon in situloss of bacterial endosymbionts in the deep-sea mussel Bathymodiolus azoricusassessed using proteomics and transcriptomics. BMC Genomics, accepted

Fuenzalida G., Lallier F.H., Riso R., Waeles M. & Tanguy A. 2018. Metal accumulation and regulation of metal related gene expression in the hydrothermal vent mussel Bathymodiolus azoricus. Comp Biochem Physiol B, accepted

Détrée C., Lallier F.H., Tanguy A. & Mary J. 2017. Identification and gene expression of multiple peptidoglycan recognition proteins (PGRPs) in the deep-sea mussel Bathymodiolus azoricus, involvement in symbiosis?". Comp Biochem Physiol B, 207: 1-8.

Decker C., Zorn N., Le Bruchec J., Caprais J.C., Potier N., Leize-Wagner E., Lallier F.H., Olu K. & Andersen A.C. 2017. Can the hemoglobin characteristics of vesicomyid clam species influence their distribution in deep-sea sulfide-rich sediments? A case study in the Angola Basin. Deep Sea Res. II, 142: 219-232.

Détrée C., Chabenat A., Lallier F.H., Satoh N., Shoguchi E., Tanguy A. & Mary J. 2016. Multiple i-type lysozymes in the hydrothermal vent mussel Bathymodiolus azoricusand their role in symbiotic plasticity. PLoS One, 11: e0148988.

Szafranski K.M., Piquet B., Shillito B.,Lallier F.H. & Duperron S.2015. Relative abundances of methane- and sulfur-oxidizing symbionts in gills of the deep-sea hydrothermal vent mussel Bathymodiolus azoricusunder pressure. Deep - Sea Research Part I - Oceanographic Research Papers, 101: 7-13.



Des oasis abyssales. Aquarelle de Laela ©2013