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Trees

, Volume 23, Issue 4, pp 835–842 | Cite as

Micropropagation of adult Stone Pine (Pinus pinea L.)

  • Millán Cortizo
  • Nuria de Diego
  • Paloma Moncaleán
  • Ricardo Javier Ordás
Original Paper

Abstract

This paper describes a micropropagation protocol for in vitro propagation of mature Stone Pine trees. Axillary bud development was achieved by culturing bud explants in media containing various cytokinins. Experiments were conducted to test the effect of asepsis conditions, type and concentration of cytokinin and rooting protocol. Four cytokinins were tested, namely, benzyladenine, meta-topolin, N-benzyl-9-(2-tetrahydropyranyl)-adenine and thidiazuron (TDZ) of which TDZ gave the best results, as 59% shoot development was obtained following the application of 1 μM TDZ to the culture medium. The shoot development was significantly influenced by the genotype of the tree, but was effective in explants from all 20 genotypes used in the trial. In vitro rooting was, however, difficult to achieve and could only be induced at low rates. This protocol represents the first successful biotechnological approach to the micropropagation of adult Pinus pinea trees.

Keywords

In vitro culture Conifer Axillary shoot formation Stone Pine Micropropagation 

Notes

Acknowledgments

The authors sincerely thank Ronnie Lendrum for English revision, and Patxi Saez de Urturi, Ander Isasmendi and Elena Fernández de Larrinoa (Neiker—Tecnalia) for their technical assistance. This work was supported by “Ministerio de Ciencia y Tecnología de España” (MEC-AGL-2005-08214). Millán Cortizo was supported by an FPU grant from the Spanish Ministry of Education. Nuria de Diego was supported by FT grant from the Basque Government.

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Área de Fisiología Vegetal, Dpto. Biología de Organismos y Sistemas, Instituto de Biotecnología de AsturiasUniversidad de OviedoOviedoSpain
  2. 2.Neiker-Tecnalia, Instituto Vasco de Investigación y Desarrollo AgrarioCentro ArkauteVitoria-GasteizSpain

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