This sample was collected from the nearby shore of Rio Grande, the main river that divides the US with Mexico along Texas. It is noted that a significant amount of contaminants run down this river, making it a very suitable place for data collection. The sample was taken from the US side in a nearby zone close to the international Bridge Juarez Lincoln. During the incubation and transferring process of 5 weeks, the sample displayed increased activity in Paraoxon CSM enriched media with a noticeable yellow coloration, whereas the rest of the tubes did not show any activity and progressively faded into a complete clear coloration. After plating and growth the whole plate was completely covered and made colony count not possible, however prominent white/yellow colonies can be seen which are approximately 200. These colonies are possible zones of hydrolysis of bacteria that is expressing an OPH gene.
Date of Collection
Number of Colonies of Paraoxon
Number of Colonies of Methyl Parathion
Research References


Geolocation for Sample

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Location Name
Next to Rio Grande (Rio Bravo), border with México
Location Street
301 Logan Ave
Location City
Location State
Location Country
Location Postal Code

Participating Institutions