Acessibilidade / Reportar erro

Encapsulation, dehydration and cryoprotection in regenerative capacity of shoot apices of Genipa americana

Genipa americana (genipap) is a forest species belonging to the Rubiaceae family that has economic and environmental importance, being valued for food production, recuperation of degraded areas, in the composition in areas of permanent preservation and agroforestry. The objective of this research was to evaluate the effect of different times of dehydration in laminar flow cab and immersion time in cryoprotecting solution (MS+0.5M sucrose) on the regenerative capacity of shoot apices for establishing future cryopreservation protocols. The shoot apices were obtained from seedlings, of Oiteiros accession, germinated and cultured in vitro. Explants were subjected to encapsulation and different exposure times in cryoprotecting solution and dehydration in a laminar flow cab. The cryoprotection and dehydration does not modify the viability of the shoot apices of genipap encapsulated or unencapsulated. Immersion for 24 hours in cryoprotecting solution and the dehydration in a laminar flow cab by 2 hours have potential for use in future studies of cryopreservation by encapsulation-dehydration.

Key words:
genipap; Genipa americana; Conservation ex situ; Cryoprotectant


Universidade Federal de Santa Maria Universidade Federal de Santa Maria, Centro de Ciências Rurais , 97105-900 Santa Maria RS Brazil , Tel.: +55 55 3220-8698 , Fax: +55 55 3220-8695 - Santa Maria - RS - Brazil
E-mail: cienciarural@mail.ufsm.br