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| Lédo,Ana da Silva; Jenderek,Maria; Skogerboe,Dianne; Staats,Elise; Machado,Caroline de Araújo; Oliveira,Leila Albuquerque Resende de. |
| Abstract: The objective of this work was to evaluate rewarming procedures and recovery media for Brazilian Green Dwarf coconut (Cocos nucifera) embryos cryopreserved by vitrification. The rewarming procedures evaluated were: T1, water bath at 38±2°C; and T2, unloading solution consisting of Y3 medium + 1.2 mol L-1 sucrose. The recovery media assessed were: M1, Y3 medium + 45 g L-1 sucrose + 1 mg L-1 gibberellic acid + 1 g L-1 activated charcoal + 2.2 g L-1 Gelrite; and M2, Y3 medium + 60 g L-1 sucrose + 2.2 g L-1 Gelrite. Rewarming procedures showed no significant effect, and the M1 media induced 72.5% regeneration. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cocos nucifera; Ex situ conservation; PVS3. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000400514 |
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| Lédo,Ana da Silva; Santana,Fernanda Vieira; Oliveira,Annie Carolina Araújo de; Oliveira,Leila Albuquerque Resende de; Silva,Ana Veruska Cruz da. |
| ABSTRACT: This study evaluated the effect of vitrification solutions and exposure time on the cryopreservation of Brazilian green dwarf coconut plumules (BGD) using the droplet vitrification technique. Explants were excised from BGD mature fruits from the Active Germplasm Bank of Embrapa Tabuleiros Costeiros, Sergipe, Brazil. Firstly, embryos were disinfected, and after excision, plumules were pre-cultivated for 72 hours in Y3 + 0.6 M sucrose + 2.2 g L-1 Gelrite® culture medium. Plumules were exposed to PVS2 and PVS3 solutions for 15 and 30 minutes and rapidly immersed in liquid nitrogen (-196 ºC). After cryopreservation, they were thawed in culture medium solution (Y3 + 1.2 M sucrose) and cultured in regeneration medium. The experimental design was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cocos nucifera L.; Cryoprotection; PVS2; PVS3. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100401 |
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