| Summary: | Global energy demand promotes the exploration of alternative technologies to replace non-renewable resources that pollute the environment. Exoelectrogenic microorganisms have proven to be very useful in the generation of bioenergy; however, their study in regions characterized by extreme conditions is limited. In this research, the objective was to evaluate the presence of exoelectrogenic microorganisms in Antarctic sediments using microbial fuel cells, which allowed to measure the voltage generated by sedimentary bacteria over time. Statistical analyses, including Kruskal-Wallis and Dunn's post-hoc tests, revealed significant differences in voltage generation between experimental replicates and controls. As a result, four of the five sediments studied showed significant potential to harbor exoelectrogenic microorganisms, especially at sampling points 1, 2, 3, and 5. Consequently, the great potential of Antarctic microorganisms to serve as sustainable energy producers in remote areas with extreme cold conditions is highlighted. This research contributes to the understanding of the exoelectrogenic capabilities of sedimentary bacteria in extreme environments and their potential uses in the production of clean energy. La demanda mundial energética promueve la exploración de tecnologías alternativas para sustituir los recursos no renovables que contaminan al medio ambiente. Los microorganismos exoelectrogénicos han demostrado ser muy útiles en la generación de bioenergía; sin embargo, su estudio en regiones caracterizadas por condiciones extremas es limitado. En esta investigación, se planteó como objetivo evaluar la presencia de microorganismos exoelectrogénicos en sedimentos antárticos utilizando pilas de combustible microbianas, las cuales permitieron medir el voltaje generado por las bacterias sedimentarias a través del tiempo. Los análisis estadísticos, que incluyeron pruebas de Kruskal-Wallis y post-hoc de Dunn, mostraron diferencias significativas en la generación de voltaje entre las réplicas ...
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