Artículo
Selection of an actinobacteria mixed culture for chlordane remediation. Pesticide effects on microbial morphology and bioemulsifier production
Fuentes, María Soledad
; Colin, Veronica Leticia
; Amoroso, Maria Julia del R.
; Benimeli, Claudia Susana
Fecha de publicación:
02/2016
Editorial:
Wiley Vch Verlag
Revista:
Journal Of Basic Microbiology
ISSN:
0233-111X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Chlordane bioremediation using actinobacteria mixed culture is an attractive clean-up technique. Their ability to produce bioemulsifiers could increase the bioavailability of this pesticide. In order to select a defined actinobacteria mixed culture for chlordane remediation, compatibility assays were performed among six Streptomyces strains. The strains did not show growth inhibition, and they were assayed for chlordane removal, either as pure or as mixed cultures. In pure cultures, all of the strains showed specific dechlorination activity (1.42-24.20 EU mg−1) and chlordane removal abilities (91.3?95.5%). The specific dechlorination activity was mainly improved with cultures of three or four microorganisms. The mixed culture consisting of Streptomyces sp. A2-A5-A13 was selected. Their ability to produce bioemulsifiers in the presence of glucose or chlordane was tested, but no significant differences were observed (p > 0.05). However, the stability of the emulsions formed was linked to the carbon source used. Only in chlordane presence the emulsions retained 100% of their initial height. Finally, the selected consortium showed a high degree of sporulation in the pesticide presence. This is the first study on the effects that chlordane exerts on microbe morphology and emulsifier production for a defined mixed culture of Streptomyces with ability to remediate the pesticide
Palabras clave:
Mixed Culture
,
Chlordane
,
Bioremediation
,
Bioemulsifier Production
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Articulos(PROIMI)
Articulos de PLANTA PILOTO DE PROC.IND.MICROBIOLOGICOS (I)
Articulos de PLANTA PILOTO DE PROC.IND.MICROBIOLOGICOS (I)
Citación
Fuentes, María Soledad; Colin, Veronica Leticia; Amoroso, Maria Julia del R.; Benimeli, Claudia Susana; Selection of an actinobacteria mixed culture for chlordane remediation. Pesticide effects on microbial morphology and bioemulsifier production; Wiley Vch Verlag; Journal Of Basic Microbiology; 56; 2; 2-2016; 127-137
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