image: In a model for electron transfer through evolved coculture aggregates, the OmcS cytochrome (dark blue) of G. sulfurreducens (red) accepts electrons from cytochromes (light blue) of G. metallireducens (green) associated with the outer cell or pilli. Electrons transfer from one organism to the other. This image relates to an article that appeared in the Dec. 3, 2010, issue of Science, published by AAAS. The study, by Ms. Zarath Summers, at University of Massachusetts in Amherst, Mass., and colleagues was titled, "Direct Exchange of Electrons Within Aggregates of an Evolved Syntrophic Coculture of Anaerobic Bacteria." view more
Credit: Image © <i>Science</i> /AAAS