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Ver términos de la licenciaCruz-Orea, Alfredo, et al. (2024). Ionoma radical de Sedum praealtum por microanálisis SEM-EDX en presencia de arsénico y cadmio y la adición de agentes quelantes. Revista Internacional de Contaminación Ambiental; Vol. 40, 2024; 279-288. Recuperado de https://repositorio.unam.mx/contenidos/4161081
Autor(es)
Cruz-Orea, Alfredo; López-Gómez, María Fernanda; Rodríguez-Dorantes, Angélica
Tipo
Artículo de Investigación
Área del conocimiento
Biología y Química
Título
Ionoma radical de Sedum praealtum por microanálisis SEM-EDX en presencia de arsénico y cadmio y la adición de agentes quelantes
Fecha
2024-11-21
Resumen
Ionomics considers the qualitative and quantitative evaluation of elemental composition and its changes in the organism physiology. The scanning electron microscopy with energy-dispersive x-ray spectroscopy evaluation (SEM-EDX) technique is and adequate analysis for it because informs about elements localization and chemical composition in biological samples. The present work analyzed the Sedum praealtum radical ionome by the effect of arsenic and cadmium presence and chelating agent addition. Qualitative elemental distribution of P, K, Ca, Cu, Fe, Mn, Mg, Ni, Zn, Mo, As and Cd was evaluated by SEM-EDX microanalysis in root fragments organized in four regions that involved the root tip to the early differentiation zone. The most important pattern obtained was the synergy between As, Cd and ethylenediamine tetraacetic acid chelating agent (EDTA). The highest elemental percentage was obtained under the synergy between As, Cd and ethylenediaminetetraacetic acid chelating agent (EDTA), as an elemental immobilization pattern in the radical surface of this plant species, giving evidence of the sites to absorption and transport of nutrients in the root zones.
Tema
Scanning electron microscopy; X-ray; roots; elemental analysis; microscopía electrónica de barrido; rayos-X; raíz; análisis elemental
Idioma
spa
ISSN
ISSN impreso: 0188-4999
