Now showing items 143-145 of 145

    • Ultraestructura del bambú Guadua macclurei (Poaceae: Bambusoideae) de Costa Rica 

      Montiel Longhi, Mayra; Guevara Berger, Eric; Jiménez García, Víctor (2006-08-20)
      Se evaluaron ultraestructuralmente secciones de la lámina de la hoja, vaina de la hoja y rama, de una planta adulta de Guadua macclurei. Las brácteas del culmo carecen de setas orales. En la superficie adaxial de la lámina ...
    • Ultraestructura del bambú Guadua paniculata (Poaceae: Bambusoideae) de Costa Rica 

      Montiel Longhi, Mayra; Guevara Berger, Eric; Jiménez García, Víctor (2006-12)
      Sections of leaf lamina, leaf sheath and branches of adult Guadua paniculata collected in Costa Rica, were studied ultrastructurally. Diagnostic ultrastructural characteristics include the cellular pattern of the adaxial ...
    • 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 ...