01697naa a2200241 a 450000100080000000500110000800800410001902400360006010000200009624501080011626000090022430000300023352008930026365000240115665000140118065000180119465000220121270000200123470000130125470000210126770000200128877301470130820931582018-07-10       2018    bl uuuu     u00u1 u    #d7 a.1007/978-1-4939-8594-4_182DOI1 aSOUZA, F. V. D.  aCryopreservation of pineapple Shoot Tips by the droplet vitrification technique.h[electronic resource]  c2018  a269-277cv.1815. Cap. 18.  aCryopreservation is a technique that allows the conservation of many species for long periods. Among the protocols used for cryopreservation, droplet vitrification has shown efficient results in preserving shoot tips of various wild and cultivated pineapple genotypes. The method consists of extraction of shoot tips from plants grown in vitro, dehydration for a period of 48 h in a preculture medium supplemented with a high concentration of sucrose, treatment in a plant vitrification solution (PVS2), and immersion in liquid nitrogen. The method described in this chapter has produced survival and regeneration indices of around 70%, depending on the genotype and physiological conditions of the initial explants. The objective of this chapter is to describe in detail a droplet vitrification protocol for shoot tips that is easy to perform for cryopreservation of pineapple germplasm.  aConservation plants  aSolutions  aVitrification  aCriopreservação1 aSOUZA, E. H. de1 aKAYA, E.1 aVIEIRA, L. de J.1 aSILVA, R. L. da  tIn: LOYOLA-VARGAS, V.r M; Ochoa-Alejo, N. (ed.). Plant Cell Culture Protocols, Methods in Molecular Biology. New York, NY: Humana Press, 2018.