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Ultrastructure and histology of organogenesis induced from shoot tips of maize (Zea mays, Poaceae)
(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 ...
Substrate vibrations in the scorpion Centruroides margaritatus (Scorpiones: Buthidae) during courtship
(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 ...