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24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

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International Center for Microbial Ressources





Serge Casaregola



The CIRM-Levures ( is a Biological Resource Center dedicated to the preservation, the characterization and the valorization of yeasts involved in French traditional fermentations and in biotechnology. The CIRM-Levures has gathered several INRA collections of yeasts involved in wine, cider and cheese making. It constantly increases its holdings by collecting yeasts from various environments such as subtropical zones.

The CIRM-Levures preserves over 1300 Saccharomycotina yeast isolates and associated taxonomic data in its open collection; the data can be accessed through its on-line catalogue (

Since 2006, the CIRM-Levures is ISO 9001 certified for the acquisition, authentification, preservation and distribution of yeasts and for the provision of services.

1) Participation in the Investissement d’avenir project “Biobanques”
2) Participation in the FP7 European project MIRRI (Microbial Resource Research Infrastructure) on the ESFRI roadmap
3) Construction and administration of the Yeast IP database dedicated to the identification and the phylogeny of yeasts of the Saccharomycotina subphylum (


The CIRM-Levures posses an expertise in molecular taxonomy and in genomics acquired during its participation in the projects of the yeast sequencing consortium Genolevures.

Research projects aim at characterizing genetic diversity, evolution and speciation of species important in agro-food such as yeasts of the CTG clade (Debaryomyces hansenii, Millerozyma farinosa) and species with a more basal position in the yeast phylogenetic tree such as Geotrichum candidum.


Serge Casaregola

CIRM-Levures, INRA/AgroParisTech
78850 Thiverval-Grignon, France
Tel: +33 1 30 81 52 94