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  • Title: Cryopreservation of Pollen Grains of Pineapple and Other Bromeliads.
    Author: Souza FVD, de Souza EH, da Silva RL.
    Journal: Methods Mol Biol; 2018; 1815():279-288. PubMed ID: 29981129.
    Abstract:
    Cryopreservation of pollen grains is an efficient technique to overcome asynchronous flowering and to support actions for genetic improvement and conservation of important alleles. It can be used both by germplasm curators and plant breeders. In the case of Bromeliaceae, a family with wide diversity but also high vulnerability, the form of conservation can be crucial to prevent the increasing problem of genetic erosion. This chapter describes a method of cryopreservation of pollen grains of different Bromeliaceae species, including pineapple, after dehydration with silica and subsequent immersion in liquid nitrogen. The efficiency of this protocol has been demonstrated by the high pollen viability percentage and production of seeds after in vivo pollination with cryopreserved grains. The protocol can be used for cryopreserving pollen of many species of bromeliads and is easy to perform.
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