RESEARCHES REGARDING THE MORPHOLOGY, STRUCTURE AND DISTRIBUTION OF LATICIFERS IN THE VEGETATIVE ORGANS OF SOME EUPHORBIA SPECIES FROM ROMANIA’S FLORA
Journal Title: Analele Stiintifice ale Universitatii Alexandru Ioan Cuza din Iasi, Serie noua, Sectiunea II a. Biologie vegetala - Year 2007, Vol 53, Issue 0
Abstract
The study deals with the morphology, structure and distribution of laticifers in the vegetative organs of some Euphorbia species from the Romanian flora. Our histo-anatomical researches pointed out the presence of laticifers in all the vegetative organs (root, rhizome, aerial stem, leaf), being well represented in certain parenchymatous tissues and the secondary phloem. In all the analyzed organs, the laticifers of variable size have only primary wall, generally thicker than that of the adjacent cells. In the stem of certain investigated taxa, some laticifers resemble with the secretory ducts, because they are surrounded by two or more concentric layers of meristematic or mechanic cells.
Authors and Affiliations
RAMONA GALEŞ, C. TOMA
Keywords
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