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Effets des régulateurs de croissance sur la survie et le développement des plantes après cryoconservation.

Effects of plant growth regulators on survival and recovery growth following cryopreservation.

Auteurs : TURNER S. R., TOUCHELL D. H., SENARATNA T., et al.

Type d'article : Article

Résumé

Studies on the effects of plant growth regulators (PGRs) on survival, recovery and post-recovery growth of shoot apices following cryopreservation are limited. In this study, the effects of plant growth regulators in both the culture phase and the recovery phase of cryostorage were examined for the rare plant species, Anigozanthos viridis ssp terraspectans Hopper. Survival of shoot apices was not correlated to cytokinin or auxin treatments administered in culture media prior to cryostorage. In recovery media, the PGRs, kinetin, zeatin (cytokinins), IAA, (auxin) and GA3 were examined for their effect following cryopreservation. It was found that the application of a combination of cytokinin and 0.5 µM GA3 from day zero was the most appropriate for obtaining vigorously growing plantlets following LN immersion. This combination proved to be more effective than basal medium, zeatin or kinetin treatments.

Détails

  • Titre original : Effects of plant growth regulators on survival and recovery growth following cryopreservation.
  • Identifiant de la fiche : 2004-1970
  • Langues : Anglais
  • Source : Cryo-Letters - vol. 22 - n. 3
  • Date d'édition : 05/2001
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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