Repositorio UFRO · Omeka S

Removal of pentachlorophenol in a rhizotron system with ryegrass (Lolium multiflorum)

Primer Autor	Diez, M. C.
Co-autores	Urrutia, C. Rubilar, O. Paredes, C. Benitez, E. Azcon, R.
Título	Removal of pentachlorophenol in a rhizotron system with ryegrass (Lolium multiflorum)
Editorial	SPRINGER INTERNATIONAL PUBLISHING AG
Revista	JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
Lenguaje	en
Resumen	Degradation of pentachlorophenol (PCP) in the rhizosphere of Lolium multiflorum (ryegrass) was studied in an Andisol of southern Chile. A rhizotron system was designed to evaluate the effect of different PCP concentrations (50, 100 and 250 mg kg(-1)) on plant biomass, organic acid exudation, dehydrogenase and the beta-glucosidase activity of L. multiflorum. Moreover, the microbial biomass was estimated using a molecular technique in different sections of rhizotrons. More than 96% of PCP was removed in the rhizotron system by adsorption in the soil and degradation by the rhizosphere of L. multiflorum. The plant biomass decreased when the PCP concentration was increased in the soil, the biomass for the treatment with 250 mg kg-1 being significantly lower. The estimation of the microbial biomass and beta-glucosidase activity in the soil was not affected when the PCP concentration was increased, indicating a low toxicity of the contaminant due to its lesser availability. However, the dehydrogenase activity decreased when increasing the PCP concentration, showing negative effects on microorganisms. The organic acid exudates varied during the incubation time, influenced by the stress of the different treatments and the distribution of roots. Therefore, Lolium multiflorum is a promising candidate for designing field scale phytoremediation processes.
Tipo de Recurso	Artículo original
Description	This research was financed by the FONDECYT 1050614, 1090678, CONICYT-CSIC 2007-144 and DIUFRO GAP-2007 projects. Esta investigación fue financiada por los proyectos FONDECYT 1050614, 1090678, CONICYT-CSIC 2007-144 y DIUFRO GAP-2007.
doi	10.4067/S0718-95162013005000039
Formato Recurso	pdf
Palabras Claves	Pentachlorophenol phytoremediation Lolium multiflorum rhizosphere SOIL RHIZOSPHERE INDICATORS ALUMINUM BIOMASS pentaclorofenol fitorremediación Lolium multiflorum rizosfera SUELO RIZOSFERA INDICADORES ALUMINIO BIOMASA
Ubicación del archivo	http://dx.doi.org/10.4067/S0718-95162013005000039
Materias	Pentachlorophenol phytoremediation Lolium multiflorum rhizosphere SOIL RHIZOSPHERE INDICATORS ALUMINUM BIOMASS pentaclorofenol fitorremediación Lolium multiflorum rizosfera SUELO RIZOSFERA INDICADORES ALUMINIO BIOMASA
Disciplinas de la OCDE	Biotecnología Ambiental Ciencias del suelo Biorremediación
Título de la cita (Recomendado-único)	Removal of pentachlorophenol in a rhizotron system with ryegrass (Lolium multiflorum)
Revista/Libro	JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
Tipo de ruta	dorada verde
Access Rights	acceso abierto
Derechos de acceso	acceso abierto
License	CC BY NC 2.0
Condición de la licencia (Recomendado-repetible)	CC BY NC 2.0
Idioma	en
Identificador del recurso (Mandatado-único)	Artículo original
Versión del recurso (Recomendado-único)	versión publicada
Entidad financiadora	ANID CONICYT FONDECYT 1050614#ANID CONICYT FONDECYT 1090678#ANID CONICYT-CSIC 2007-144#UFRO DI GAP
Referencia del Financiador (Mandatado si es aplicable-repetible)	ANID CONICYT FONDECYT 1050614 ANID CONICYT FONDECYT 1090678 ANID CONICYT-CSIC 2007-144 UFRO DI GAP
Editorial	SPRINGER INTERNATIONAL PUBLISHING AG
ISSN	0718-9508
Página de inicio (Recomendado-único)	499
Página final (Recomendado-único)	510
Categoría WOS	Ciencias de las plantas Ciencias ambientales Ciencias del suelo Plant Sciences Environmental Sciences Soil Science
Formato	pdf
Id de Web of Science	WOS:000324859700019