Artículo
Temporal evolution of 137Cs+, K+ and Na+ in fruits of South American tropical species
Cid, A. S.; Anjos, R. M.; Zamboni, C. B; Velasco, Ricardo Hugo
; Macario, K.; Rizzotto, Marcos Gregorio; Medeiros, I. M. A.; Juri Ayub, Jimena
; Audicio, P.
![Icon](/themes/CONICETDigital/images/conicet.png)
![Icon](/themes/CONICETDigital/images/conicet.png)
Fecha de publicación:
02/2013
Editorial:
Elsevier Science
Revista:
Science of the Total Environment
ISSN:
0048-9697
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Concentrations of 137Cs, K and Na in fruits of lemon (Citrus limon B.) and of K and Na in fruits of coconut (Cocos nucifera L.) trees were measured by both gamma spectrometry and neutron activation analysis, with the aim to understand the behaviour of monovalent inorganic cations in tropical plants as well as the plant ability to store these elements. Similar amounts of K+ were incorporated by lemon and coconut trees during the growth and ripening processes of its fruits. The K concentration decreased exponentially during the growth of lemons and coconuts, ranging from 13 to 25 g kg− 1 dry weight. The incorporation of Na+ differed considerably between the plant species studied. The Na concentration increased linearly during the lemon growth period (0.04 to 0.70 g kg− 1 d.w.) and decreased exponentially during the coconut growth period (1.4 to 0.5 g kg− 1 d.w.). Even though radiocaesium is not an essential element to plants, our results have shown that 137Cs incorporation to vegetable tissues is positively correlated to K distribution within the studied tropical plant species, suggesting that the two elements might be assimilated in a similar way, going through the biological cycle together. A mathematical model was developed from the experimental data allowing simulating the incorporation process of monovalent inorganic cations by the fruits of such tropical species. The agreement between the theoretical approach and the experimental values is satisfactory along fruit development.
Palabras clave:
Vegetal Macronutrients
,
137cs
,
K+
,
Na+
,
Citrus Limon
,
Cocos Nucifera
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IMASL)
Articulos de INST. DE MATEMATICA APLICADA DE SAN LUIS
Articulos de INST. DE MATEMATICA APLICADA DE SAN LUIS
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Cid, A. S.; Anjos, R. M.; Zamboni, C. B; Velasco, Ricardo Hugo; Macario, K.; et al.; Temporal evolution of 137Cs+, K+ and Na+ in fruits of South American tropical species; Elsevier Science; Science of the Total Environment; 444; 2-2013; 115-120
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