Results

Construction of the proposed biosensors was not completed successfully due to what appear to be flawed ligations and/or low efficiency competent cells. The necessary methodology and procedures have been laid down for further work on construction, development and improvement of the biosensor system in the future. Further work include the completion of the biosensors, proof of concept growing bacteria in absence and presence of stimuli and application of biosensors to a range of samples from specific points distributed all along Xochimilco lake. Results of these tests could be then applied in the construction a map of the lake specifying the most critical points that need to be treated.

Figure 1. The agarose gel shows the unsuccesful ligations, represented on the right.