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Revista Colombiana de Biotecnología

Print version ISSN 0123-3475

Abstract

SEVERIN, Cecilia; BUENO, Mirian; SANTIN, Franco  and  GIUBILEO, María Graciela. In vitro response of different biotypes and explants of Passiflora caerulea L. Rev. colomb. biotecnol [online]. 2011, vol.13, n.1, pp.73-79. ISSN 0123-3475.

As other species of the Passifloraceae family, Passiflora caerulea L. is used in popular medicine for its antispasmodic properties and as a remedy for anxiety, insomnia and nervousness. It is also highly prized for the ornamental value of its beautiful flowers, as well as for the nutritional importance of its fruits. The in vitro response of different explants and three biotypes of P. caerulea: the Corral de Bustos (Province of Córdoba), the Zavalla (Province of Santa Fe) and the Neuquén (Province of Neuquén) genotypes, was evaluated using two types of explants: internodes and nodal segments on Murashige and Skoog (1962) (MS) culture medium supplemented with Gamborg’s vitamins (1976) and 1 mg.L-1 of benzyladenine (BA). There were different responses depending on the genotype and the explant. The internodes placed both horizontally and vertically in the culture medium produced callus as sole response. The Neuquén biotype showed the highest percentages of nodal segments with shoots. Histological tests allowed to establish that in MS culture medium with 1 mg.L-1 of BA, the nodal segments of P. caerulea produce shoots from the preformed axillary buds and roots that develop from the callus situated on its base. Under similar conditions, the internodes produce callus as sole response.

Keywords : Passion fruit; in vitro culture; regeneration.

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