Cryo-Technologies for Ex Situ Conservation of Rosa Germplasm.

Détails

Ressource 1Télécharger: 35448822_BIB_32C05AA2D32B.pdf (1688.21 [Ko])
Etat: Public
Version: Final published version
Licence: CC BY 4.0
ID Serval
serval:BIB_32C05AA2D32B
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Cryo-Technologies for Ex Situ Conservation of Rosa Germplasm.
Périodique
Plants
Auteur⸱e⸱s
Halmagyi A., Vălimăreanu S., Șovărel G., Coste A.
ISSN
2223-7747 (Print)
ISSN-L
2223-7747
Statut éditorial
Publié
Date de publication
18/04/2022
Peer-reviewed
Oui
Volume
11
Numéro
8
Pages
1095
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: epublish
Résumé
In this study, we compare two rapid cryopreservation (-196 °C) procedures, droplet-vitrification and encapsulation-dehydration for rose (Rosa × hybrida L., cultivars 'Ioana', 'Mariana', 'Vulcan'). Significant factors for cryopreservation, such as sucrose concentration during osmoprotection, treatment duration with plant vitrification solution 2 (PVS2) in droplet-vitrification, duration of air desiccation and moisture content of alginate beads in encapsulation-dehydration, were investigated. In addition, the morphogenetic response to in vitro culture and to liquid nitrogen storage and the content in photosynthetic pigments have been assessed. The in vitro cultures were initiated from plant material originating from field collection. The highest regeneration frequencies were obtained for cv. 'Vulcan' in both of the cryopreservation procedures tested, 72% in droplet-vitrification and 65% following encapsulation-dehydration. The morphogenetic response (multiplication index and height of shoots) to liquid nitrogen storage was direct multiple shoot formation per initial shoot tip for all genotypes. The content in chlorophyll a and b was statistically comparable in plant material resulting from cryopreserved and non-cryopreserved shoot tips in all cultivars. The findings expand the information on Rosa's response to in vitro culture conditions and cryopreservation, providing protocols with a high regeneration capacity for the storage of genotypes with high ornamental value.
Mots-clé
droplet-vitrification, encapsulation-dehydration, genetic resources, long-term storage
Pubmed
Web of science
Open Access
Oui
Création de la notice
03/05/2022 8:00
Dernière modification de la notice
23/01/2024 7:22
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