Repositorio UFRO · Omeka S

Novel insights in biopurification system for dissipation of a pesticide mixture in repeated applications

Primer Autor	Diez, Maria Cristina
Co-autores	Leiva, Barbara#Gallardo, Felipe
Título	Novel insights in biopurification system for dissipation of a pesticide mixture in repeated applications
Editorial	SPRINGER HEIDELBERG
Revista	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Lenguaje	en
Resumen	A biopurification system based on the adsorption and degradation capacity of a biomixture to degrade a mixture of pesticides (atrazine, chlorpyrifos, iprodione, 50 mg kg(-1) each) in repeated applications (0, 30, and 60 days) was evaluated. Tanks of 1 m(3) packed with a biomixture (rho 0.29 g mL(-1)) with and without vegetal cover were used. The biomixture contained soil, peat, and wheat straw in a proportion 1:1:2 by volume, respectively. Pesticide concentrations, biological activities (urease, phenoloxidase, and dehydrogenase), and microbial community changes (DGGE and qPCR) were evaluated periodically. Pesticide dissipation was higher in tanks with vegetal cover (> 95%) and no variation was observed after the three applications, contrarily, pesticide dissipation decreased in the tank without vegetal cover after each application. The presence of vegetal cover decreased the half-life of pesticides by at least twice. Biological activities were in general not affected by the application and reapplication of pesticides in the same treatment, however, they exhibited some differences between tanks containing and lacking the vegetal cover. High similarity between microbial groups (actinobacteria, bacteria, and fungi) was observed, suggesting no influence ascribable to the successive pesticide applications. The number of copies of bacteria and actinobacteria remained almost constant during the assay. However, the number of copies of fungi was significantly higher in the uncontaminated tank without vegetal cover.
Tipo de Recurso	Artículo original
Description	This research was supported by the FONDECYT 1161481 and partially by the CONICYT/FONDAP/15130015 projects. Esta investigación fue apoyada por el proyecto FONDECYT 1161481 y parcialmente por los proyectos CONICYT/FONDAP/15130015.
doi	10.1007/s11356-017-0130-z
Formato Recurso	pdf
Palabras Claves	Biopurification system# Pesticide dissipation# Vegetal cover# Biological activities# Microbial community
Ubicación del archivo	http://dx.doi.org/10.1007/s11356-017-0130-z
Categoría OCDE	Environmental Sciences
Materias	Sistema de biopurificación# Disipación de pesticidas# Cobertura vegetal# Actividades biológicas# comunidad microbiana
Disciplinas de la OCDE	Biotecnología Ambiental Biorremediación Microbiología
Id de Web of Science	WOS:000440115600019
Título de la cita (Recomendado-único)	Novel insights in biopurification system for dissipation of a pesticide mixture in repeated applications
Identificador del recurso (Mandatado-único)	Artículo original
Versión del recurso (Recomendado-único)	version publicada
Editorial	SPRINGER HEIDELBERG
Revista/Libro	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Categoría WOS	Ciencias Ambientales
ISSN	0944-1344
Idioma	en
Referencia del Financiador (Mandatado si es aplicable-repetible)	ANID FONDECYT 1161481#ANID CONICYT FONDAP 15130015 ANID FONDECYT 1161481 ANID CONICYT FONDAP 15130015
Descripción	This research was supported by the FONDECYT 1161481 and partially by the CONICYT/FONDAP/15130015 projects.
Formato	pdf
Tipo de ruta	hibrida
Access Rights	restringido
Derechos de acceso	restringido
Página de inicio (Recomendado-único)	74
Página final (Recomendado-único)	84