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  • Author or Editor: Jean Carlos Bettoni x
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Jean Carlos Bettoni, Aike Anneliese Kretzschmar, Remi Bonnart, Ashley Shepherd and Gayle M. Volk

The availability of and easy access to diverse Vitis species are prerequisites for advances in breeding programs. Plant genebanks usually maintain collections of Vitis taxa as field collections that are vulnerable to biotic and abiotic stresses. Cryopreservation has been considered an ideal method of preserving these collections as safety back-ups in a cost-effective manner. We report a droplet vitrification method used to cryopreserve 12 Vitis species (Vitis vinifera cvs. Chardonnay and ‘Riesling, V. actinifolia, V. aestivalis, V. jacquemontii, V. flexuosa, V. palmata, V. riparia, V. rupestris, V. sylvestris, V. ficifolia, V. treleasi, and V. ×novae angeliae) using shoot tips excised from plants grown in vitro. Our results demonstrated wide applicability of this technique, with regrowth levels at least 43% for 13 genotypes representing 12 Vitis species. We demonstrated that the droplet vitrification procedure can be successfully replicated by technical staff, thus suggesting that this method is ready for implementation.