Listar Biología por autor "afef001b-a02b-4993-8159-caade0d1025a"
Mostrando ítems 1-7 de 7
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Effect of Gamma Irradiation and Selection with Fungus Filtrate (Rhizoctonia solani Kuhn) on the in Vitro Culture of Common Bean (Phaseolus vulgaris)
Solís Ramos, Laura Yesenia; Valdez Melara, Marta; Alvarado Barrantes, Ricardo; Mora Umaña, Floribeth; Hernández Jiménez, Eduardo José; Barboza Vargas, Natalia María; Ramírez Fonseca, Pilar (2015)The present investigation was undertaken to study the effect of gamma irradiation (dose from 10 to 100 Gy) and in vitro selection with fungus filtrate as selecting agent (concentration from 20% to 100%) on the susceptibility ... -
Establecimiento de cultivos celulares morfogénicos para el mejoramiento genético del frijol (Phaseolus vulgaris L.).
Valdez Melara, Marta; Gatica Arias, Andrés Mauricio; Ramírez Fonseca, Pilar; Solís Ramos, Laura Yesenia (2011-08-08)La investigación desarrolló la metodología y los protocolos experimentales para la regeneración de plantas de cultivo in vitro, a partir de tejidos somáticos en varios genotipos de frijol común (Phaseolus vulgaris L.) de ... -
Establecimiento de cultivos celulares para la regeneración in vitro del ayote (Cucúrbita moschata)
Valdez Melara, Marta; Gatica Arias, Andrés Mauricio; Ramírez Fonseca, Pilar (2012-04-09)Desarrollar la metodología y los protocolos experimentales para la regeneración de plantas en condiciones de cultivo in vitro, a partir de tejidos somáticos en varios genotipos de Ayote (cucúrbita moshata) de Costa Rica, ... -
Establishment of cell suspension cultures of two Costa Rican Jatropha species (Euphorbiaceae).
Solís Ramos, Laura Yesenia; Miranda Carballo, Laura; Valdez Melara, Marta (2013-09-01)J. curcas has been studied in different countries and some interesting agronomic, pharmacological and industrial properties have been reported. More recently, it has been considered an important alternative source for ... -
Genetic diversity analysis of jatropha species from Costa Rica using AFLP markers
Avendaño Vega, Roberto; García Díaz, Elmer Guillermo; Valdez Melara, Marta; Chaves Solano, Nefertiti; Mora Villalobos, José Anibal; Aguilar Cascante, Francisco; Williamson Benavides, Bruce; Solís Ramos, Laura Yesenia (2015)The genetic diversity from species of the genus Jatropha collected from Costa Rica was analyzed by AFLP (amplified fragments length polymorphism). The study consisted of 114 accessions from 15 populations of 4 different ... -
Un método de transformación genética de maíz para conferirle resistencia ulterior a enfermedades virales
Valdez Melara, Marta; Madriz Ordeñana, Kenneth; Ramírez Fonseca, Pilar (2004-09)A method for genetic transformation of maize for resistance to viral diseases. A system for the genetic transformation of maize was developed for two Costa Rican varieties: CR-7 and Diamantes 8843, that can allow the ... -
Ultrastructure and histology of organogenesis induced from shoot tips of maize (Zea mays, Poaceae)
Marín Méndez, Walter; Sánchez Chacón, Ethel; Gatica Arias, Andrés Mauricio; Ramírez Fonseca, Pilar; Freer Bustamante, Enrique; Valdez Melara, Marta (Revista de Biología Tropical; vol.57(supl.1), 2009-11)Shoot tips of maize (Zea mays L.) were cultured on Murashige and Skoog medium supplemented with 2 mg/l BA +1 mg/l 2,4-D +40 mg/l, to investigate phases of ontogenetic development. The study used light microscopy as well ...