Conservación de germoplasma en especies leñosas con técnicas de cultivo in Vitro y almacenamiento en frío
Ano: 2011 | Volume: 2 | Número: 1
Autores: Corredoira, E., Valladares, S., Martínez, T., Couselo, J.L., San José, M.C., Ballester, A., Vázquez-Janeiro, L., Vieitez, A.M. Autor Correspondente: Corredoira, E. | [email protected]
Palavras-chave: almacenamiento en frÃo, conservación, cultivo in vitro de brotes, especies leñosas, micropropagación
Resumos Cadastrados
Resumo Inglês:
Maintenance of plant tissue in vitro is an essential procedure for the conservation and exchange of genetic resources. In vitro culture is defined as a process in which plant cells, tissues or organs grown in aseptic conditions and a controlled environment. Provides the ability to store a large number of samples in a small space as well as allowing the conservation those species with low seed viability, cultures for clonal mass propagation, highly heterozygous crops or cultures that need to be propagated vegetatively to preserve their genetic integrity. Established in vitro cultures can be kept short term (from 1 week to two months) and medium term by manipulating the growth conditions. The long-term in vitro culture conditions can be achieved using liquid nitrogen storage or cryopreservation. The aim of this study was to describe the main techniques for in vitro conservation of germplasm of a number of woody species in the short and medium term. These techniques have enabled the Department of Plant Physiology Institute of Agrobiological Research of Galicia (IIAG) establishing a germplasm bank of woody species.