|Santos, Paulo Augusto Almeida; Paiva, Renato; Silva, Luciano Coutinho; Souza, Ana Cristina de; Santana, Marlucia Cruz de; Silva, Diogo Pedrosa Corrêa da.|
|The aim of this study was to evaluate the efficiency of vitrification and droplet vitrification for the cryopreservation of Hancornia speciosa shoot tips. The shoot tips were subjected to four different periods of exposure (15, 30, 45 and 60 min.) to plant vitrification solution 2 (PVS2) before plunging into liquid nitrogen. We evaluated the regrowth of H. speciosa shoot tips that were cryopreserved by the classical vitrification technique and by the droplet vitrification technique. Shoot tips were submitted to different periods of pre-culture (absence, 24 or 48h) in a medium containing 0.3 M sucrose prior to cryopreservation. With a PVS2 exposure period of 60 min., significant differences were observed between the two techniques used in this study with...|
||Palavras-chave: 5.00.00.00-4 - ciências agrárias; 2.03.03.00-9 - fisiologia vegetal; Native species; In vitro conservation; Recalcitrant seeds; Plant genetic diversity conservation; Vitrification; Droplet vitrification Conservação in vitro; Criopreservação vegetal.