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Technical platforms

Cryobank of microorganisms


A collection of more than 500 strains of microalgae and cyanobacteria, wild or transformed in the laboratory freezers.
Published on 6 November 2019

Strains preserved in EBM

  • Insertion mutants of Chlamydomonas reinhardtii created in the laboratory
  • Strains of C. reinhardtii expressing genes of interest upwards or downwards
  • Mutant strains of Synechocystis PCC6803
  • Various species of microalgae which come from collections of the whole world (CCAP, UTEX, SAG, Duke Center,…)

Conservation of strains

The conservation of the microalgae is done with a freezing in a cryoconservator at a temperature lower than 180 °C  in liquid nitrogen.

This mode of preservation was chosen to avoid the genetic drift which can occur following too numerous subculturing on agar-agar.  

Strain management

At the laboratory, the software LabCollector is used for the management of strains. This software allows us, between other things, to manage two important steps in the preservation of the strains:​

  • The traceability of the operations 
  • The planning of the periodic controls of viability.

​During the controls of viability, tests of no contamination are also made.