Ultrastructural and Histochemical Changes during the Germination of Cattleya aurantiaca (Orchidaceae)
- 1 March 1977
- journal article
- research article
- Published by University of Chicago Press in Botanical Gazette
- Vol. 138 (1) , 41-45
- https://doi.org/10.1086/336896
Abstract
Germination and protocorm development in C. aurantiaca were examined ultrastructurally and histochemically. Mature, unimbibed seeds contained numerous protein and lipid bodies but no appreciable carbohydrate reserves. Protein bodies were restricted to the upper 2/3 of the embryo. Lipid reserves were utilized slowly in seeds sown aseptically onto medium lacking a carbohydrate source but more rapidly on medium containing sucrose. Degenerating lipid bodies were often found closely associated with mitochondria, but glyoxysomes were not evident at any time during germination. Neither dictyosomes nor rough endoplasmic reticulum was found in the cells of seedlings grown on sugarless medium.This publication has 0 references indexed in Scilit: