English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/94226
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Zinc tolerance and accumulation in the halophytic species Juncus acutus

AutorMateos Naranjo, E.; Castellanos, Eloy M.; Pérez Martín, Alfonso
Palabras clavePhotoinhibition
Nutrient absorption
Metal toxicity
Growth response
Fecha de publicación2014
CitaciónEnvironmental and Experimental Botany 100: 114- 121 (2014)
ResumenThe research on species with capacity to tolerate and accumulate zinc is of paramount importance for phytoremediation purposes. An experiment was designed to investigate the effect of Zn from 0 to 100mmoll-1 on the growth, photosynthetic apparatus and nutrient uptake of the halophytic species Juncus acutus. Gas exchange, chlorophyll fluorescence and photosynthetic pigments concentration were measured. We also determined total zinc, magnesium, potassium, phosphorus and sodium concentrations, as well as C/N ratio. J. acutus showed high tolerance to Zn-induced stress, since all plants survived and none of them showed any toxicity symptoms, such as chlorosis, necrosis or growth reduction at concentrations up to 100mmoll-1 Zn. The integrity and functionality of the photosynthetic apparatus were unaffected even at zinc concentrations greater than 500mgkg-1 on tillers. Likewise, nutrient absorption was relatively unaffected. Zn tolerance was associated with the capacity to accumulate Zn in roots (with values up to 2500mgkg-1) and largely avoid its transport to tillers. These characteristics, along with its ability to establish in a wide variety of ecosystems, render this species a useful phytostabilizer for revegetation of Zn-contaminated lands. © 2014 Elsevier B.V.
Versión del editorhttp://dx.doi.org/10.1016/j.envexpbot.2013.12.023
Identificadoresdoi: 10.1016/j.envexpbot.2013.12.023
issn: 0098-8472
Aparece en las colecciones: (IRNAS) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Zinc_tolerance_accumulation_halophytic.pdf754,62 kBAdobe PDFVista previa
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.