Pili Extend as Nanowires to Transfer Electrons. Investigators noted that Geobacter species specifically produced fine, hair-like structures known as pili on one side of the cell during growth on Fe(III) oxide.
Credit or Source: Office of Biological and Environmental Research of the U.S. Department of Energy Office of Science. science.energy.gov/ber/
US DOE. 2005. Genomics:GTL Roadmap, DOE/SC-0090, U.S. Department of Energy Office of Science. (p. 74) (website)