Indigenous Heavy Metal Multiresistant Microbiota of Las Catonas Stream |
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| Authors: | Diana L Vullo Helena M Ceretti Enrique A Hughes Silvana RamÍrez Anita Zalts |
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| Affiliation: | (1) Área Química, Instituto de Ciencias, Universidad Nacional de General Sarmiento, J.M. Gutierrez 1150, Los Polvorines, Provincia de Buenos Aires, Argentina;(2) Área Microbiología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina |
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| Abstract: | Las Catonas stream (Buenos Aires Metropolitan Area) receives a complex mixture of pollutants from point and diffuse sources because of the agricultural, industrial and urban land uses of its basin. Widespread detection of heavy metals exceeding aquatic life protection levels has occurred in monitoring reconnaissance studies in surface and pore water. As a result of the screening of Cu, Cd, Zn and Pb resistant/tolerant and culturable microbiota, B101N and 200H strains (Pseudomonas fluorescens or putida) were isolated and selected for further studies. They showed 65% Cd and 35% Zn extraction efficiency from aqueous phase. The potential use of these strains in wastewater treatment is currently investigated in order to contribute to decrease heavy metal pollution, a problem affecting every stream of Buenos Aires Metropolitan Area. |
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| Keywords: | bioremediation environmental monitoring heavy metal multiresistant microbiota |
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