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Original Articles

Cryoconservation des méristèmes

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Pages 75-88 | Published online: 10 Jul 2014
 

Résumé

La cryoconservation des méristèmes dans l'azote liquide est actuellement possible pour de nombreuses espèces d'intérêt économique (manioc, pomme de terre, arbres fruitiers, fraisier…). La méthodologie s'apparente à celle mise au point pour les suspensions cellulaires. Il est donc possible d'utiliser, dès maintenant, la cryoconservation de méristèmes dans le cas où celle des graines ne peut être envisagée et aussi pour les souches dépourvues d'agents pathogènes, les plantes propagées végétativement, les hybrides stériles.

Summary

Today, the cryopreservation of meristems in liquid nitrogen is feasable in the case of several economically important species (cassava, potato, fruit trees, strawberry…). The technology available for the meristems is similar to the cryopreservation procedure used for cell suspensions. The cryopreservation of meristems may be considered when long term preservation of seeds is unfeasable (recalcitrant seeds) and also for vegetatively propagated crops, virus free germplasm, sterile hybrids.

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