Bacterial Consortiums Able to Use Metal-Cyanide Complexes as a Nitrogen Source
María Isabel Igeño,
Daniel Macías,
María Isabel Guijo,
Rubén Sánchez-Clemente,
Ana G. Población,
Faustino Merchán,
Rafael Blasco
Affiliations
María Isabel Igeño
Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Veterinaria, and Meat and Meat Products Research Institute (IProCar), Universidad de Extremadura, 10003 Cáceres, Spain
Daniel Macías
Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Veterinaria, and Meat and Meat Products Research Institute (IProCar), Universidad de Extremadura, 10003 Cáceres, Spain
María Isabel Guijo
Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Veterinaria, and Meat and Meat Products Research Institute (IProCar), Universidad de Extremadura, 10003 Cáceres, Spain
Rubén Sánchez-Clemente
Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Veterinaria, and Meat and Meat Products Research Institute (IProCar), Universidad de Extremadura, 10003 Cáceres, Spain
Ana G. Población
Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Veterinaria, and Meat and Meat Products Research Institute (IProCar), Universidad de Extremadura, 10003 Cáceres, Spain
Faustino Merchán
Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Veterinaria, and Meat and Meat Products Research Institute (IProCar), Universidad de Extremadura, 10003 Cáceres, Spain
Rafael Blasco
Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Veterinaria, and Meat and Meat Products Research Institute (IProCar), Universidad de Extremadura, 10003 Cáceres, Spain
Most cyanide-containing industrial effluents also contain other cyano-derivatives and high amounts of metals and metal-cyanide compounds. For this reason, the biotreatment of these wastes requires the use of microorganisms capable to degrade all these different cyano-compounds and to tolerate metals. Pseudomonas pseudoalcaligenes CECT 5344 is a cyanotrophic bacterium capable of metabolize cyanide in its free form, but it is not very efficient at degrading metal-cyanide complexes. Therefore, for the optimization of the cyanide biodegradation process it is essential to find and characterize new bacterial strains, capable of assimilating metal cyanide-complexes, to complement the capacities of P. pseudoalcaligenes CECT 5344.
