Envíos recientes

  • Substrate vibrations in the scorpion Centruroides margaritatus (Scorpiones: Buthidae) during courtship 

    Briceño Lobo, Daniel; Bonilla Murillo, Fabián (Rev. Biol. Trop. (Int. J. Trop. Biol. ISSN-0034-7744) Vol. 57 (Suppl. 1): 267-274, November 2009, 2009-11)
    Mating behavior in Centruroides margaritatus, as in other scorpion species, includes a series of rapid rocking or shaking movements of the male (“juddering”). It has been suggested that substrate vibrations are generated ...
  • Ultrastructure and histology of organogenesis induced from shoot tips of maize (Zea mays, Poaceae) 

    Marín-Méndez, Walter; Sánchez-Chacón, Ethel; Gatica-Arias, Andrés M.; Ramírez-Fonseca, Pilar; Freer-Bustamante, Enrique; Valdez-Melara, Marta (Rev. biol. trop vol.57 supl.1 San José nov. 2009, 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 ...