Capacidad de bacterias halófilas para capturar sodio in Vitro y su posible aplicación en bioremediación en suelos salinos-sódicos

Capacidad de bacterias halófilas para capturar sodio in Vitro y su posible aplicación en bioremediación en suelos salinos-sódicos

The inadequate agricultural practices have been the cause of the increase of saline-sodic soils in the entireplanet. Its recovery has been done mainly changing sodium by another cation, generally calcium, remedying inmechanical form and using halotolerant plants. Although these practices control the problem to a certainextent, it has not been able to make an effective recovery in these soils. This work displays as an alternative,the use of bioremediation with halophiles bacteria. The objective of the investigation was to evaluate thecapacity of five species of halophiles to capture in vitro sodium ions and to design a proposal for its possibleapplication in bioremediation of sodic and saline soils. The capture of sodium was demonstrated by comparing he initial concentration of the sodium solution without inoculating and the concentration of the same one withthe bacterium inoculated through the technique of spectroscopy of atomic absorption. The bacteria thatdemonstrated the capacity to capture sodium in vitro were: Vibrio alginolyticus, Vibrio metschnikovii,Flavimonas oryzihabitans and Agrobacterium tumefasciens. Serratia marcescens did not demonstrate cap-ture. The verification of the sodium capture allowed as to make two proposals: to design a bioreactor with amicrobial partnership that includes the bacteria that captured sodium in the experiment and native bacteria insaline and sodic soils and to use genetic engineering to implant the gene of sodium bomb of the species withbetter capture in existing indigenous flora in this type of grounds.

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23. DOI: http://dx.doi.org/10.22490/24629448.357