Répertoire du corps professoral

Financements des 2 dernières années

Diatom ecophysiology in a changing Arctic: consequences on the marine primary productivity
Programme: Programme de suppléments aux subventions à la découverte en recherche nordique (SSDRN)
Organisme(s) subventionnaire(s): Conseil de recherches en sciences naturelles et génie Canada
Type de financement: Subvention
Établissement tête: Université Laval
Du 1 avril 2017 au 31 mars 2023

Encadrements terminés dans les 5 dernières années

Sébastien Guérin, Doctorat interuniversitaire en océanographie

Publications des 5 dernières années

Skeletonema marinoi ecotypes show specific habitat‐related responses to fluctuating light supporting high potential for growth under photobioreactor light regime New Phytologist, 2024/07. Charlotte Volpe, Marianne Nymark, Tom Andersen, Per Winge, Johann Lavaud, Olav Vadstein. DOI 10.1111/nph.19788

The Photoprotective Behavior of a Motile Benthic Diatom as Elucidated from the Interplay Between Cell Motility and Physiological Responses to a Light Microgradient Using a Novel Experimental Setup Microbial Ecology, 2024. Morelle, Jerome, Bastos, Alexandra, Frankenbach, Silja, Frommlet, Jorg C., Campbell, Douglas A., Lavaud, Johann, Serodio, Joao. DOI 10.1007/S00248-024-02354-7

Hypometabolism to survive the long polar night and subsequent successful return to light in the diatom <i>Fragilariopsis cylindrus</i> New Phytologist, 2024. Joli, Nathalie, Concia, Lorenzo, Mocaer, Karel, Guterman, Julie, Laude, Juliette, Guerin, Sebastien, Sciandra, Theo, Bruyant, Flavienne, Ait-Mohamed, Ouardia, Beguin, Marine, Forget, Marie-Helene, Bourbousse, Clara, Lacour, Thomas, Bailleul, Benjamin, Nef, Charlotte, Savoie, Mireille, Tremblay, Jean-Eric, Campbell, Douglas A., Lavaud, Johann, Schwab, Yannick, Babin, Marcel, Bowler, Chris. DOI 10.1111/NPH.19387

Sustained xanthophyll pigments-related photoprotective NPQ is involved in photoinhibition in the haptophyte Tisochrysis lutea Scientific Reports, 2023/09/07. T. Lacour, E. Robert, J. Lavaud. DOI 10.1038/s41598-023-40298-z

Responses to herbicides of Arctic and temperate microalgae grown under different light intensities Environmental Pollution, 2023/09. Juan Du, Disney Izquierdo, Hai-Feng Xu, Beatrix Beisner, Johann Lavaud, Leanne Ohlund, Lekha Sleno, Philippe Juneau. DOI 10.1016/j.envpol.2023.121985

A Generalized Model for the Light Response of the Nonphotochemical Quenching of Chlorophyll Fluorescence of Diatoms The Mathematical Biology of Diatoms, 2023/05/15. João Serôdio, Johann Lavaud. DOI 10.1002/9781119751939.ch13

Pesticide responses of Arctic and temperate microalgae differ in relation to ecophysiological characteristics Aquatic Toxicology, 2023. Du, Juan, Izquierdo, Disney, Naoum, Jonathan, Ohlund, Leanne, Sleno, Lekha, Beisner, Beatrix E., Lavaud, Johann, Juneau, Philippe. DOI 10.1016/J.AQUATOX.2022.106323

Light-response in two clonal strains of the haptophyte Tisochrysis lutea: Evidence for different photoprotection strategies Algal Research, 2023. Pajot, Anne, Lavaud, Johann, Carrier, Gregory, Lacour, Thomas, Marchal, Luc, Nicolau, Elodie. DOI 10.1016/J.ALGAL.2022.102915

Potential for the Production of Carotenoids of Interest in the Polar Diatom Fragilariopsis cylindrus Marine Drugs, 2022/07/29. Sébastien Guérin, Laura Raguénès, Dany Croteau, Marcel Babin, Johann Lavaud. DOI 10.3390/md20080491

The Fucoxanthin Chlorophyll a/c-Binding Protein in Tisochrysis lutea: Influence of Nitrogen and Light on Fucoxanthin and Chlorophyll a/c-Binding Protein Gene Expression and Fucoxanthin Synthesis Frontiers in Plant Science, 2022. Pajot, Anne, Lavaud, Johann, Carrier, Gregory, Garnier, Matthieu, Saint-Jean, Bruno, Rabilloud, Noemie, Baroukh, Caroline, Berard, Jean-Baptiste, Bernard, Olivier, Marchal, Luc, Nicolau, Elodie. DOI 10.3389/FPLS.2022.830069

Shifts in growth light optima among diatom species support their succession during the spring bloom in the Arctic Journal of Ecology, 2022. Croteau, Dany, Lacour, Thomas, Schiffrine, Nicolas, Morin, Philippe-Israel, Forget, Marie-Helene, Bruyant, Flavienne, Ferland, Joannie, Lafond, Augustin, Campbell, Douglas A., Tremblay, Jean-Eric, Babin, Marcel, Lavaud, Johann. DOI 10.1111/1365-2745.13874

Photosynthetic Light Reactions in Diatoms. II. The Dynamic Regulation of the Various Light Reactions The Molecular Life of Diatoms, 2022. Bernard Lepetit, Douglas A. Campbell, Johann Lavaud, Claudia Büchel, Reimund Goss, Benjamin Bailleul. DOI 10.1007/978-3-030-92499-7_16

Photosynthetic Light Reactions in Diatoms. I. The Lipids and Light-Harvesting Complexes of the Thylakoid Membrane The Molecular Life of Diatoms, 2022. Claudia Büchel, Reimund Goss, Benjamin Bailleul, Douglas A. Campbell, Johann Lavaud, Bernard Lepetit. DOI 10.1007/978-3-030-92499-7_15

Content in fatty acids and carotenoids in phytoplankton blooms during the seasonal sea ice retreat in Hudson Bay complex, Canada Elementa: Science of the Anthropocene, 2022. Rémi Amiraux, Johann Lavaud, Kasey Cameron-Bergeron, Lisa C. Matthes, Ilka Peeken, Christopher J. Mundy, David G. Babb, Jean-Eric Tremblay. DOI 10.1525/ELEMENTA.2021.00106

FIRST IDENTIFICATION OF FUCOXANTHIN-CHLOROPHYLL A/C BINDING PROTEIN OF TISOCHRYSIS LUTEA, INFLUENCE OF NITRATE CONCENTRATION AND LIGHT INTENSITY ON ITS EXPRESSION Phycologia, 2021. Pajot, Anne, Lavaud, Johann, Carrier, Gregory, Garnier, Matthieu, Marchal, Luc, Saint-Jean, Bruno, Nicolau, Elodie.

Diuron effects on photosynthesis and vertical migration of microphytobenthos: Potential rapid bioassessment of herbicide toxicity in coastal sediments Marine Pollution Bulletin, 2021. Du, Guo-Ying, Zhong, Xue-Feng, Dupuy, Christine, Che, Shuai, Lavaud, Johann. DOI 10.1016/J.MARPOLBUL.2021.112619

Genome-Scale Metabolic Reconstruction and in Silico Perturbation Analysis of the Polar Diatom Fragilariopsis cylindrus Predicts High Metabolic Robustness Biology, 2020/02/17. Michel Lavoie, Blanche Saint-Béat, Jan Strauss, Sébastien Guérin, Antoine Allard, Simon V. Hardy, Angela Falciatore, Johann Lavaud. DOI 10.3390/biology9020030

The Vertical Migratory Rhythm of Intertidal Microphytobenthos in Sediment Depends on the Light Photoperiod, Intensity, and Spectrum: Evidence for a Positive Effect of Blue Wavelengths Frontiers in Marine Science, 2020. Barnett, A., Méléder, V., Dupuy, C., Lavaud, J.. DOI 10.3389/fmars.2020.00212

Response of the sea-ice diatom Fragilariopsis cylindrus to simulated polar night darkness and return to light Limnology and Oceanography, 2020. Morin, P.-I., Lacour, T., Grondin, P.-L., Bruyant, F., Ferland, J., Forget, M.-H., Massicotte, P., Donaher, N., Campbell, D.A., Lavaud, J., Babin, M.. DOI 10.1002/lno.11368

Mapping the Intertidal Microphytobenthos Gross Primary Production, Part II: Merging Remote Sensing and Physical-Biological Coupled Modeling Frontiers in Marine Science, 2020. Savelli, R., Méléder, V., Cugier, P., Polsenaere, P., Dupuy, C., Lavaud, J., Barnett, A., Le Fouest, V.. DOI 10.3389/fmars.2020.00521

Mapping the Intertidal Microphytobenthos Gross Primary Production Part I: Coupling Multispectral Remote Sensing and Physical Modeling Frontiers in Marine Science, 2020. Méléder, V., Savelli, R., Barnett, A., Polsenaere, P., Gernez, P., Cugier, P., Lerouxel, A., Le Bris, A., Dupuy, C., Le Fouest, V., Lavaud, J.. DOI 10.3389/fmars.2020.00520

Light Regulation of LHCX Genes in the Benthic Diatom Seminavis robusta Frontiers in Marine Science, 2020. Blommaert, L., Vancaester, E., Huysman, M.J.J., Osuna-Cruz, C.M., D’hondt, S., Lavaud, J., Lepetit, B., Winge, P., Bones, A.M., Vandepoele, K., Vyverman, W., Sabbe, K.. DOI 10.3389/fmars.2020.00192

Green edge ice camp campaigns: Understanding the processes controlling the under-ice arctic phytoplankton spring bloom Earth System Science Data, 2020. Massicotte, P., Amiraux, R., Amyot, M.-P., Archambault, P., Ardyna, M., Arnaud, L., Artigue, L., Aubry, C., Ayotte, P., Bécu, G., Bélanger, S., Benner, R., Bittig, H.C., Bricaud, A., Brossier, E., Bruyant, F., Chauvaud, L., Christiansen-Stowe, D., Claustre, H., Cornet-Barthaux, V., Coupel, P., Cox, C., Delaforge, A., Dezutter, T., Dimier, C., Domine, F., Dufour, F., Dufresne, C., Dumont, D., Ehn, J., Else, B., Ferland, J., Forget, M.-H., Fortier, L., Galí, M., Galindo, V., Gallinari, M., Garcia, N., Gérikas Ribeiro, C., Gourdal, M., Gourvil, P., Goyens, C., Grondin, P.-L., Guillot, P., Guilmette, C., Houssais, M.-N., Joux, F., Lacour, L., Lacour, T., Lafond, A., Lagunas, J., Lalande, C., Laliberté, J., Lambert-Girard, S., Larivière, J., Lavaud, J., Lebaron, A., Leblanc, K., Le Gall, F., Legras, J., Lemire, M., Levasseur, M., Leymarie, E., Leynaert, A., Lopes Dos Santos, A., Lourenço, A., Mah, D., Marec, C., Marie, D., Martin, N., Marty, C., Marty, S., Massé, G., Matsuoka, A., Matthes, L., Moriceau, B., Muller, P.-E., Mundy, C.-J., Neukermans, G., Oziel, L., Panagiotopoulos, C., Pangrazi, J.-J., Picard, G., Picheral, M., Pinczon Du Sel, F., Pogorzelec, N., Probert, I., Quéguiner, B., Raimbault, P., Ras, J., Rehm, E., Reimer, E., Rontani, J.-F., Rysgaard, S., Saint-Béat, B., Sampei, M., Sansoulet, J., Schmechtig, C., Schmidt, S., Sempéré, R., Sévigny, C., Shen, Y., Tragin, M., Tremblay, J.-E., Vaulot, D., Verin, G., Verin, G., Vladoiu, A., Whitehead, J., Babin, M.. DOI 10.5194/essd-12-151-2020

Diversity in Xanthophyll Cycle Pigments Content and Related Nonphotochemical Quenching (NPQ) Among Microalgae: Implications for Growth Strategy and Ecology Journal of Phycology, 2020. Lacour, T., Babin, M., Lavaud, J.. DOI 10.1111/jpy.12944

Diatoms and Their Ecological Importance Encyclopedia of the UN Sustainable Development Goals, 2020. João Serôdio, Johann Lavaud. DOI 10.1007/978-3-319-71064-8_12-1

Contrasting nonphotochemical quenching patterns under high light and darkness aligns with light niche occupancy in Arctic diatoms Limnology and Oceanography, 2020. Croteau, D., Guérin, S., Bruyant, F., Ferland, J., Campbell, D.A., Babin, M., Lavaud, J.. DOI 10.1002/lno.11587

Lhcx proteins provide photoprotection via thermal dissipation of absorbed light in the diatom Phaeodactylum tricornutum Nature Communications, 2019. Buck, J.M., Sherman, J., Bártulos, C.R., Serif, M., Halder, M., Henkel, J., Falciatore, A., Lavaud, J., Gorbunov, M.Y., Kroth, P.G., Falkowski, P.G., Lepetit, B.. DOI 10.1038/s41467-019-12043-6

From ecological relevance of the ecosystem services concept to its socio-political use. The case study of intertidal bare mudflats in the Marennes-Oléron Bay, France Ocean and Coastal Management, 2019. Lebreton, B., Rivaud, A., Picot, L., Prévost, B., Barillé, L., Sauzeau, T., Beseres Pollack, J., Lavaud, J.. DOI 10.1016/j.ocecoaman.2019.01.024