%0 Journal Article
%T Morfolog赤a del polen de las especies de Loasaceae Juss. presentes en Venezuela
%A Eliana Noguera-Savelli
%A Thirza Ruiz
%A Damelis J芍uregui
%J Ernstia
%D 2009
%I Universidad Central de Venezuela
%X Se estudi車 la morfolog赤a del polen de nueve especies de Loasaceae que crecen en Venezuela con el objetivo de determinar caracteres pol赤nicos de valor diagn車stico. Para definir el tama o y forma de los granos, se realiz車 el procedimiento tradicional de acet車lisis, present芍ndose granos prolato-esferoidales, subprolatos y prolatos. La ornamentaci車n de la exina se observ車 al microscopio electr車nico de barrido obteniendo tres tipos: microequinada, estriadoreticulada y birreticulada. La mayor赤a de las especies presentan granos tricolporados, pudi谷ndose encontrar tambi谷n granos tricolpados. The pollen morphology of nine species of Loasaceae that grow in Venezuela was studied with the objective to determine the characters of value diagnosis. The traditional procedure of acetolysis was made in order to obtain the grain sizes and forms, showing prolate-spheroidal, subprolate and prolate grains. The ornamentation obtaining exina was observed in the scanning electron microscopy obtaining three types: microechinate, striato-reticulate and bireticulate. Most of the species present tricolporate grains, being able to also find grains tricolpate.
%K Exina
%K Polen
%K Loasaceae
%K Venezuela
%K Exina
%K Pollen
%K Loasaceae
%K Venezuela
%U http://wwww.scielo.org.ve/scielo.php?script=sci_arttext&pid=S0252-82742009000100005