Direct Exchange of Electrons Within Aggregates of an Evolved Syntrophic Coculture of Anaerobic Bacteria

By Z. Summers, Heather E. Fogarty, C. Leang, Ashley E. Franks, N. Malvankar, Derek R. Lovley. Science, 2010

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Geobacter: the microbe electric's physiology, ecology, and practical applications. (2011, background): “sulfurreducens and the finding that the aggregates were electrically conductive (Summers et al., 2010) suggest that components of these cells can form an electrically conductive matrix which permits direct electron exchange between the partners (Lovley, 2011a,c).”
Reach out and touch someone: potential impact of DIET (direct interspecies energy transfer) on anaerobic biogeochemistry, bioremediation, and bioenergy (2011, background): “It was clear in the co-culture study with Geobacter species (Summers et al. 2010) that the adaptation for direct cell-to-cell electron transfer resulted in much faster cell growth, consistent with the concept of higher energy conservation via DIET.”
Recent advances in bio-based carbon materials for anaerobic digestion: A review (2021, positive): “This c-type cytochrome greatly involves extracellular electron transfer and also quickens the development of multispecies groups [125].”