Publication: Accumulation and tolerance of cadmium in a nonmetallicolous ecotype of Silene vulgaris Garcke (Moench)
Authors
Miras Moreno, Begoña ; Almagro, Lorena ; Pedreño García, María Ángeles ; Ferrer, María Angeles
item.page.secondaryauthor
Biología Vegetal
item.page.director
Publisher
Murcia: Servicio de Publicaciones de la Universidad de Murcia
publication.page.editor
publication.page.department
Description
Abstract
En este estudio, se analizó el efecto de diferentes concentraciones
de Cd2+ sobre un ecotipo de Silene vulgaris Garcke (Moench). La
concentración de 60 μM de Cd2+ provocó una ligera inhibición del
crecimiento de las plantas mientras que la concentración más alta
(120 μM) redujo drásticamente la biomasa y la elongación de la
raíz y los brotes. Además, se detectaron altos niveles de Cd2+ en
las plantas, un coeficiente de bioacumulación elevado en las raices y un bajo factor de translocación indicando que el ecotipo de
S. vulgaris empleado en este estudio presenta una alta capacidad
de acumulación de Cd2+ en las raíces y sería un buen candidato
para la fitoestabilización, lo que contribuiría a reducir los niveles de
Cd2+ en el suelo. Además, los resultados obtenidos indican que se
debe tener precaución con el origen de esta planta, ya que podría
representar una fuente adicional de Cd2+ en la dieta humana.
ABSTRACT: In this study, a pot experiment was developed using a non-metallicolous ecotype of Silene vulgaris Garcke (Moench) exposed to 0, 60 and 120 µM Cd2+ for 13 days. The dose of 60 µM Cd2+ had little effect on the growth of S. vulgaris plants, whereas the highest dose produced a drastic reduction in biomass, and root and shoot elongation. The high internal Cd2+ concentration together with the high bioaccumulation coefficient in roots and the low translocation factor indicated that this ecotype could be a good candidate for the phytostabilisation of Cd2+-contaminated soils. In view of the widespread use of this plant in popular medicine and the cuisine of Mediterranean countries, the results obtained also suggest that caution needs to be taken concerning its origin since it could represent an additional source of Cd2+ in the human diet.
ABSTRACT: In this study, a pot experiment was developed using a non-metallicolous ecotype of Silene vulgaris Garcke (Moench) exposed to 0, 60 and 120 µM Cd2+ for 13 days. The dose of 60 µM Cd2+ had little effect on the growth of S. vulgaris plants, whereas the highest dose produced a drastic reduction in biomass, and root and shoot elongation. The high internal Cd2+ concentration together with the high bioaccumulation coefficient in roots and the low translocation factor indicated that this ecotype could be a good candidate for the phytostabilisation of Cd2+-contaminated soils. In view of the widespread use of this plant in popular medicine and the cuisine of Mediterranean countries, the results obtained also suggest that caution needs to be taken concerning its origin since it could represent an additional source of Cd2+ in the human diet.
publication.page.subject
Citation
item.page.embargo
Collections
Ir a Estadísticas
Sin licencia Creative Commons.