Artículo
On the nature and origin of the oxalate package in Solanum sisymbriifolium anthers
Burrieza, Hernán Pablo
; Lopez Fernandez, Maria Paula
; Lainez, Veronica
; Montenegro, Teresita Francis
; Maldonado, Sara Beatriz
Fecha de publicación:
11/2010
Editorial:
Springer Wien
Revista:
Protoplasma
ISSN:
0033-183X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Summary: This is a detailed study carried out in Solanum sisymbriifolium Lam. on the development of the circular cell cluster (CCC) during crystal deposition, as well as the composition of the crystals. Light microscopy and scanning and transmission electron microscopy (TEM) were used to characterize tissue throughout anther development. Energy dispersive X-ray analysis (EDAX) allowed the determination of the elemental composition of crystals that form in the CCC region, and infrared and x-ray diffraction analysis were used to specify the crystal salt composition. TEM analysis revealed that the crystals originated simultaneously within the vacuoles in association with a paracrystalline protein. Prior to the appearance of protein within vacuoles, protein paracrystals were visible in both rough endoplasmic reticulum and vesicles with ribosomes on their membranes. In vacuoles, paracrystals constitute nucleation sites for druse crystals formation. EDAX revealed that C, O, and Ca were the main elements, and K, Cl, Mg, P, S, and Si, the minor elements. X-ray powder diffraction of crystals detected the predominant presence of calcium oxalate, but also vestiges of calcite, quartz, and sylvite. The calcium oxalate coexisted in the three chemical forms, that is, whewellite, weddellite, and caoxite. Infrared spectrophotometry identified bands that characterize O-C-O, H-O, C-H bonds, all of calcium oxalate, and Si-O-Si, of quartz. These results were compared with studies of anthers carried out in other Solanaceae genera. © 2010 Springer-Verlag.
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Articulos(IBBEA)
Articulos de INSTITUTO DE BIODIVERSIDAD Y BIOLOGIA EXPERIMENTAL Y APLICADA
Articulos de INSTITUTO DE BIODIVERSIDAD Y BIOLOGIA EXPERIMENTAL Y APLICADA
Articulos(IGEBA)
Articulos de INSTITUTO DE GEOCIENCIAS BASICAS, APLICADAS Y AMBIENTALES DE BS. AS
Articulos de INSTITUTO DE GEOCIENCIAS BASICAS, APLICADAS Y AMBIENTALES DE BS. AS
Citación
Burrieza, Hernán Pablo; Lopez Fernandez, Maria Paula; Lainez, Veronica; Montenegro, Teresita Francis; Maldonado, Sara Beatriz; On the nature and origin of the oxalate package in Solanum sisymbriifolium anthers; Springer Wien; Protoplasma; 247; 1; 11-2010; 45-56
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