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Cryoconservation of South African plant genetic diversity
Berjak, P.; Bartels, P.; Benson, E.; Harding, K.; Mycock, D.J.; Pammenter, N.W.; Sershen; Wesley-Smith, J. (2011). Cryoconservation of South African plant genetic diversity. In Vitro Cell. Dev. Biol. P. 47(1): 65-81.
In: In Vitro Cellular & Developmental Biology - Plant. Springer: Heidelberg. ISSN 1054-5476, more
Peer reviewed article  

Available in Authors 

Author keywords
    Biobanking; Cryopreservation; Ecosystems; Genetic resources; Indigenous;Recalcitrant; Restoration

Authors  Top 
  • Berjak, P.
  • Bartels, P.
  • Benson, E.
  • Harding, K.
  • Mycock, D.J.
  • Pammenter, N.W.
  • Sershen
  • Wesley-Smith, J.

    South Africa has a rich flora which exhibits among the highest species density in the world, distributed across nine biomes that support an impressive diversity of animal life. However, a variety of human actions, invasion by alien species, natural disturbances and climate change collectively impact negatively on the great diversity of both plant and animal species. In situ conservation has long been practised, primarily in nature reserves, complemented by ex situ conservation in national botanic gardens, but in vitro plant conservation is not common. In the context of animal biodiversity conservation, the Wildlife Biological Resource Centre of the National Zoological Gardens utilises cryobanking as one of its major focuses and is now poised to expand as the repository for the cryoconservation of plant germplasm, particularly for indigenous recalcitrant-seeded and poor-seeding species. However, there are particular problems associated with successful germplasm cryostorage of such tropical and subtropical plants. As we see the science and application of cryobiology and cryoconservation as cross-cutting and transdisciplinary, we have entrained formal networking among scientists offering a range of specialisations aimed at a deeper understanding of common problems and practical outcomes to facilitate both plant and animal biobanking. The endeavours are aimed at elucidating the basis of both successes and failures in our efforts to attain optimal outcomes. With focus on best practices, standard operating procedures, validation and risk management for cryopreserved and cold-stored plant and animal material, our ultimate aim is to facilitate restoration by the safe reintroduction of indigenous species.

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