Accumulation capacity of cadmium and copper and their effects on photosynthetic performance in Azolla filiculoides Lam. under induced rhizofiltration

ABSTRACT This study evaluated the capacity of Azolla filiculoides to enhance heavy metal accumulation through the addition of different concentrations of cadmium (Cd) and copper (Cu), as ethylenediaminetetraacetic acid (EDTA) complexes, under hydroponic conditions. The physiological effect was deter...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Valderrama,Aly, Carvajal,Danny E., Peñailillo,Patricio, Tapia,Jaime
Lenguaje:	English
Publicado:	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2016
Materias:	EDTA Azollaceae cadmium copper photosynthetic metabolism
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432016000200283
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-66432016000200283
record_format	dspace
spelling	oai:scielo:S0717-664320160002002832017-03-09Accumulation capacity of cadmium and copper and their effects on photosynthetic performance in Azolla filiculoides Lam. under induced rhizofiltrationValderrama,AlyCarvajal,Danny E.Peñailillo,PatricioTapia,Jaime EDTA Azollaceae cadmium copper photosynthetic metabolism ABSTRACT This study evaluated the capacity of Azolla filiculoides to enhance heavy metal accumulation through the addition of different concentrations of cadmium (Cd) and copper (Cu), as ethylenediaminetetraacetic acid (EDTA) complexes, under hydroponic conditions. The physiological effect was determined by Photosynthetic efficiency (Fv/Fm) as an indicator of plant stress, and heavy metal content was measured with flame atomic absorption spectroscopy in the whole plants. The results obtained in rhizofiltration systems did not show an increase in accumulation when Cd-EDTA was added, but the Cu-EDTA increased the accumulation of Cu by plants. Although the Fv/Fm was decreased in all treatments, only the Cd-EDTA complex caused damage to photosystem II (PSII) activity, and that damage was critical. These results coincide with the higher toxicity of cadmium to plants; the quantity of cadmium in the plants, although small, was indeed harmful to them. The correlation analysis for both heavy metals coincides with the assumption that the heavy metals on leaf tissue affected the photosynthetic metabolism. This research makes a new contribution to the field by evaluating EDTA-induced Azolla rhizofiltration in aquatic systems, a departure from the majority of the literature on the topic, which examines EDTA in soil remediation. In future, further study is needed on the interactions of EDTA with other ions and the physiological consequences for different plant species.info:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana. Botánica v.73 n.2 20162016-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432016000200283en10.4067/S0717-66432016000200283
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	EDTA Azollaceae cadmium copper photosynthetic metabolism
spellingShingle	EDTA Azollaceae cadmium copper photosynthetic metabolism Valderrama,Aly Carvajal,Danny E. Peñailillo,Patricio Tapia,Jaime Accumulation capacity of cadmium and copper and their effects on photosynthetic performance in Azolla filiculoides Lam. under induced rhizofiltration
description	ABSTRACT This study evaluated the capacity of Azolla filiculoides to enhance heavy metal accumulation through the addition of different concentrations of cadmium (Cd) and copper (Cu), as ethylenediaminetetraacetic acid (EDTA) complexes, under hydroponic conditions. The physiological effect was determined by Photosynthetic efficiency (Fv/Fm) as an indicator of plant stress, and heavy metal content was measured with flame atomic absorption spectroscopy in the whole plants. The results obtained in rhizofiltration systems did not show an increase in accumulation when Cd-EDTA was added, but the Cu-EDTA increased the accumulation of Cu by plants. Although the Fv/Fm was decreased in all treatments, only the Cd-EDTA complex caused damage to photosystem II (PSII) activity, and that damage was critical. These results coincide with the higher toxicity of cadmium to plants; the quantity of cadmium in the plants, although small, was indeed harmful to them. The correlation analysis for both heavy metals coincides with the assumption that the heavy metals on leaf tissue affected the photosynthetic metabolism. This research makes a new contribution to the field by evaluating EDTA-induced Azolla rhizofiltration in aquatic systems, a departure from the majority of the literature on the topic, which examines EDTA in soil remediation. In future, further study is needed on the interactions of EDTA with other ions and the physiological consequences for different plant species.
author	Valderrama,Aly Carvajal,Danny E. Peñailillo,Patricio Tapia,Jaime
author_facet	Valderrama,Aly Carvajal,Danny E. Peñailillo,Patricio Tapia,Jaime
author_sort	Valderrama,Aly
title	Accumulation capacity of cadmium and copper and their effects on photosynthetic performance in Azolla filiculoides Lam. under induced rhizofiltration
title_short	Accumulation capacity of cadmium and copper and their effects on photosynthetic performance in Azolla filiculoides Lam. under induced rhizofiltration
title_full	Accumulation capacity of cadmium and copper and their effects on photosynthetic performance in Azolla filiculoides Lam. under induced rhizofiltration
title_fullStr	Accumulation capacity of cadmium and copper and their effects on photosynthetic performance in Azolla filiculoides Lam. under induced rhizofiltration
title_full_unstemmed	Accumulation capacity of cadmium and copper and their effects on photosynthetic performance in Azolla filiculoides Lam. under induced rhizofiltration
title_sort	accumulation capacity of cadmium and copper and their effects on photosynthetic performance in azolla filiculoides lam. under induced rhizofiltration
publisher	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432016000200283
work_keys_str_mv	AT valderramaaly accumulationcapacityofcadmiumandcopperandtheireffectsonphotosyntheticperformanceinazollafiliculoideslamunderinducedrhizofiltration AT carvajaldannye accumulationcapacityofcadmiumandcopperandtheireffectsonphotosyntheticperformanceinazollafiliculoideslamunderinducedrhizofiltration AT penailillopatricio accumulationcapacityofcadmiumandcopperandtheireffectsonphotosyntheticperformanceinazollafiliculoideslamunderinducedrhizofiltration AT tapiajaime accumulationcapacityofcadmiumandcopperandtheireffectsonphotosyntheticperformanceinazollafiliculoideslamunderinducedrhizofiltration
_version_	1718442321618403328

Accumulation capacity of cadmium and copper and their effects on photosynthetic performance in Azolla filiculoides Lam. under induced rhizofiltration

Ejemplares similares