Laurence GARCZAREK

Directrice de recherche CNRS
co-leader of the ECOMAP team

I am a research scientist at CNRS since 2003. My main research interest lies in understanding the genetic and functional diversity of marine picocyanobacteria and the consequences on their adaptation/acclimation capacity to various environmental factors

 

MAJOR CURRENT RESEARCH PROJECTS

  • ANR SEASONING (2025-29, PI: S. Chaffron)
    Community metabolic modelling of marine microbial plankton interactions in space and time
  • FEDER Porteurs d’Océans
    Sensibilisation à la biodiversité marine et aux enjeux en lien avec les changements en cours
  • ANR TaxCy (2024-28, PI: L Garczarek)
    An integrative taxonomy to unravel the links between ecology and evolution in a-cyanobacteria, a major component of aquatic microbial communities
  • PPR FUTURE-OBS (2023-29; coord: E. Thiebaut/F. Not; partner WP2):
    Augmented observatory for coastal socio-ecosystems
  • Tara Europa/TREC (2023-26; partner):
    A multi-year seasonal sampling along a land-to-sea transect
  • BIOcean5D (2022-26 ; coord: E. Heard; Horizon Europe, partner) 
    Marine biodiversity assessment and prediction across spatial and human scales
  • EMO-BON (2021-31;  EMBRC-ERIC, partner)
    European Marin Omics - Biodiversity Observatory Network
  • ANR EFFICACY (2020-25, PI: L Garczarek and F Partensky)
    An integrative taxonomy to unravel the links between ecology and evolution in a-cyanobacteria, a major component of aquatic microbial communities
  • ANR TONGA (2019-23, role: Local coordinator, PI: Cécile Giueu and Sophie  Bonnet))
    Shallow hydroThermal sOurces of trace elemeNts: potential impacts on biological productivity and the bioloGicAl carbon pump

 

MAIN SCIENTIFIC INTEREST

  • Diversity and ecology of marine photosynthetic prokaryotes
  • Genomics, genetics and evolution of marine picocyanobacteria
  • Physiology and regulation of the response to environmental stresses

 

COLLABORATIONS

  • Silvia Acinas, ICM−CSIC, Spain
  • David J. Scanlan, Univeristy of Warwick, UK
  • David Kehoe, Indiana University, USA
  • Damien Eveillard and Samuel Chaffron, University of Nantes, France
  • Julia Uitz and Cécile Guieu,  Laboratoire d’Océanographie de Villefranche
  • Stephanie Dutkiewicz, Department of Earth, Atmospheric and Planetary Sciences, MIT Boston, USA
  • Jeff Huisman, University of Amsterdam, Netherlands
  • Hélène Morlon, Center for Computational Biology, ENS, Paris
  • Sophie Bonnet, Mediterranean Institute of Oceanography - M.I.O, Marseille

 

PHD STUDENTS

  • 2024-27 Perrine Kergoat, Sorbonne Université (co-direction with J. Bernardes)
  • 2019-23 Louison Dufour, Sorbonne Université (co-direction with F. Partensky)
  • 2018-22 Mathilde Ferrieux, Sorbonne Université (co-direction with F. Partensky)
  • 2017-20 Ulysse Guyet, Sorbonne Université (co-direction with D. Eveillard)
  • 2015-17 Hugo Doré, UPMC
  • 2015-17 Théophile Grébert, UPMC (co-direction with F. Partensky)
  • 2011-15 Gregory Farrant, UPMC
  • 2009-13 Florian Humily, UPMC (co-direction with F. Partensky)
  • 2007-10 Daniella Mella, UPMC
  • 2006-10 Christian Kolowrat (co-direction with F. Partensky)
  • 2004-06 Ludovic Joubin, UPMC

 

POST-DOCS

  • 2023-25  Emile Faure (ANR EFFICACY/Institut de l’Ocean)
  • 2020-22 Jade Leconte (ANR CINNAMON/EFFICACY)
  • 2018-21  Francisco Cornejo Catillo (Marie Curie Fellowship)
  • 2018-21  Gregory Farrant (SAD Region Bretagne/Assemble Plus)
  • 2018-19  Hugo Doré (ANR CINNAMON)
  • 2014-16  Ngoc AN Nguyen (SAD Région Bretagne / ANR SAMOSA)
  • 2006-08 Christophe Boutte (SAD Région Bretagne)
  • 2006-08 Nicolas Blot (ANR MetaSyn, co-direction with F. Partensky)
  • 2003-06 Julia Holtzendorff (EU Margenes Project, co-direction with F. Partensky)

Publications

Chromatic acclimation shapes phytoplankton biogeography

Francesco Mattei, Anna Hickman, Julia Uitz, Louison Dufour, Vincenzo Vellucci, et al.. Chromatic acclimation shapes phytoplankton biogeography. Science Advances , 2025, 11 (8), ⟨10.1126/sciadv.adr9609⟩. ⟨hal-04962714⟩

Competition for light color between marine <i>Synechococcus</i> strains with fixed and variable pigmentation

Louison Dufour, Laurence Garczarek, Francesco Mattei, Bastian Gouriou, Julia Clairet, et al.. Competition for light color between marine Synechococcus strains with fixed and variable pigmentation. Applied and Environmental Microbiology, 2025, 91 (8), pp.e00087-25. ⟨10.1128/aem.00087-25⟩. ⟨hal-05218257⟩

First release of the European marine omics biodiversity observation network (EMO BON) shotgun metagenomics data from water and sediment samples

Christina Pavloudi, Ioulia Santi, Iñigo Azua, Zuriñe Baña, Mauro Bastianini, et al.. First release of the European marine omics biodiversity observation network (EMO BON) shotgun metagenomics data from water and sediment samples. Biodiversity Data Journal, 2025, 13, pp.e143585. ⟨10.3897/BDJ.13.e143585⟩. ⟨cea-05046943⟩

Differential acclimation kinetics of the two forms of type IV chromatic acclimaters occurring in marine Synechococcus cyanobacteria

Louison Dufour, Laurence Garczarek, Bastian Gouriou, Julia Clairet, Morgane Ratin, et al.. Differential acclimation kinetics of the two forms of type IV chromatic acclimaters occurring in marine Synechococcus cyanobacteria. Frontiers in Microbiology, 2024, 15, pp.1349322. ⟨10.3389/fmicb.2024.1349322⟩. ⟨hal-04467770v2⟩

Light color regulation of photosynthetic antennae biogenesis in marine phytoplankton

David M. Kehoe, Avijit Biswas, Bo Chen, Louison Dufour, Théophile Grébert, et al.. Light color regulation of photosynthetic antennae biogenesis in marine phytoplankton. Plant and Cell Physiology, 2024, ⟨10.1093/pcp/pcae115⟩. ⟨hal-04725332⟩

Marine picocyanobacteria, an important player in the distribution of dissolved methane in the Western Tropical South Pacific Ocean?

C. Boulart, Emile Faure, Laurence Garczarek, Pierre Le Moal, Emile Magadur, et al.. Marine picocyanobacteria, an important player in the distribution of dissolved methane in the Western Tropical South Pacific Ocean?. AGU Ocean Science Meeting 2024, AGU, Feb 2024, New Orleans (LA), United States. ⟨hal-04765070⟩