Repositorio
Institucional

Amoroso, Maria J.

Fuentes, Maria S.

Briceno, Gabriela E.

Saez, JulianaM.

Benimeli, Claudia S.

Diez, Maria C.

Enhanced Removal of a Pesticides Mixture by Single Cultures and Consortia of Free and Immobilized Streptomyces Strains

HINDAWI LTD

BIOMED RESEARCH INTERNATIONAL

en

Pesticides are normally used to control specific pests and to increase the productivity in crops; as a result, soils are contaminated with mixtures of pesticides. In this work, the ability of Streptomyces strains (either as pure or mixed cultures) to remove pentachlorophenol and chlorpyrifos was studied. The antagonism among the strains and their tolerance to the toxic mixture was evaluated. Results revealed that the strains did not have any antagonistic effects and showed tolerance against the pesticides mixture. In fact, the growth of mixed cultures was significantly higher than in pure cultures. Moreover, a pure culture (Streptomyces sp. A5) and a quadruple culture had the highest pentachlorophenol removal percentages (10.6% and 10.1%, resp.), while Streptomyces sp. M7 presented the best chlorpyrifos removal (99.2%). Mixed culture of all Streptomyces spp. when assayed either as free or immobilized cells showed chlorpyrifos removal percentages of 40.17% and 71.05%, respectively, and for pentachlorophenol 5.24% and 14.72%, respectively, suggesting better removal of both pesticides by using immobilized cells. These results reveal that environments contaminated with mixtures of xenobiotics could be successfully cleaned up by using either free or immobilized cultures of Streptomyces, through in situ or ex situ remediation techniques.

Artículo original

This work was financially supported by Consejo de Investigaciones de la Universidad Nacional de Tucuman (CIUNT), Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT), Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), FONDECYT Postdoctoral Project no. 3100118, and Program of Scientific International Cooperation CONYCYT/MINCYT 2009-111. The authors gratefully acknowledge Mr. G. Borchia for his technical assistance.

This work was financially supported by Consejo de Investigaciones de la Universidad Nacional de Tucuman (CIUNT), Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT), Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), FONDECYT Postdoctoral Project no. 3100118, and Program of Scientific International Cooperation CONYCYT/MINCYT 2009-111. The authors gratefully acknowledge Mr. G. Borchia for his technical assistance.

10.1155/2013/392573

pdf

MICROBIAL-DEGRADATION

CALCIUM ALGINATE

HERBICIDE DIURON

PSEUDOMONAS SP

PENTACHLOROPHENOL

CHLORPYRIFOS

BIODEGRADATION

SOIL

GROWTH

CHLOROTHALONIL

DEGRADACIÓN MICROBIANA

ALGINATO DE CALCIO

HERBICIDA DIURÓN

PSEUDOMONAS SP

PENTACLOROFENOL

CLORPIRIFOS

BIODEGRADACIÓN

SUELO

CRECIMIENTO

CLOROTALONIL

MICROBIAL-DEGRADATION

CALCIUM ALGINATE

HERBICIDE DIURON

PSEUDOMONAS SP

PENTACHLOROPHENOL

CHLORPYRIFOS

BIODEGRADATION

SOIL

GROWTH

CHLOROTHALONIL

DEGRADACIÓN MICROBIANA

ALGINATO DE CALCIO

HERBICIDA DIURÓN

PSEUDOMONAS SP

PENTACLOROFENOL

CLORPIRIFOS

BIODEGRADACIÓN

SUELO

CRECIMIENTO

CLOROTALONIL

Biotecnología Ambiental

Biorremediación

Ciencias del Medio Ambiente

Enhanced Removal of a Pesticides Mixture by Single Cultures and Consortia of Free and Immobilized Streptomyces Strains

BIOMED RESEARCH INTERNATIONAL

dorada

verde

acceso abierto

acceso abierto

CC BY 4.0

en

Artículo original

versión publicada

Consejo de Investigaciones de la Universidad Nacional de Tucuman (CIUNT)#Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT)#Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET)#FONDECYT 3100118#Program of Scientific International Cooperation CONYCYT/MINCYT 2009-111

Consejo de Investigaciones de la Universidad Nacional de Tucuman (CIUNT)

Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT)

Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET)

FONDECYT 3100118

Program of Scientific International Cooperation CONYCYT/MINCYT 2009-111

HINDAWI LTD

2314-6133

392573

Biotecnología y Microbiología Aplicada

Medicina, Investigación y Experimentación

Biotechnology & Applied Microbiology

Medicine, Research & Experimental

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WOS:000321380700001