%0 Journal Article
%T Morphology and anatomy of the developing fruit of macfadyena unguis-cati (L.) A. H. Gentry, BignoniaceaeI Morfolog¨ªa y anatom¨ªa del fruto en desarrollo de Macfadyena unguis-cati (L.) A. H. Gentry, Bignoniaceae
%A Luiz Antonio de Souza
%A Sayuri de Oliveira Oyama
%A J¨²nior Cezar Muneratto
%J Acta Bot¨¢nica Venezuelica
%D 2008
%I Fundaci¨®n Instituto Bot¨¢nico de Venezuela Dr. Tob¨ªas Lasser
%X Macfadyena unguis-cati is a species of liana that produces pod-like fruits consisting of two carpels and bearing winged seeds. This study was motivated by the diversity of capsule types and the few seed studies conducted in Bignoniaceae. Flowers and fruits in different development stages were structurally analyzed, following standard plant anatomical techniques. The fruit is a capsule with septifragal dehiscence associated with a septicidal dehiscence. During pre-anthesis, a meristem is formed in the middle region of the ovary mesophyll. The seed originates from an anatropous, unitegmic, tenuinucellate and endothelial ovule. The mature seed is exotestal and presents little endosperm and a straight embryo. Macfadyena unguis-cati es una liana que produce frutos similares a legumbres, con dos carpelos y semillas aladas. La diversidad en el tipo de c¨¢psula y los pocos estudios en las semillas de Bignoniaceae motivaron la ejecuci¨®n de este trabajo. Se analizaron las flores y frutos en distintas fases de desarrollo, seg¨²n las t¨¦cnicas usuales de anatom¨ªa vegetal. El fruto es una c¨¢psula con dehiscencia sept¨ªfraga asociada con dehiscencia septicida. En preantesis se forma un meristema en la regi¨®n media del mesofilo del ovario. La semilla se origina de un ¨®vulo an¨¢tropo, unitegumentado, tenuinucelado y endotelial. La semilla madura es exotestal y presenta poco endosperma y un embri¨®n recto.
%K Bignoniaceae
%K desarrollo
%K fruto
%K liana
%K Macfadyena
%K semilla
%K Bignoniaceae
%K development
%K fruit
%K liana
%K Macfadyena
%K seed
%U http://wwww.scielo.org.ve/scielo.php?script=sci_arttext&pid=S0084-59062008000100001