Occasionally, we mention a review article that we think should be called to your attention. We initiated this with a stirring piece on bacterial shape by Kevin Young; this was followed by tantalizing observations by Steven Projan on genome size and antibiotic resistance. Now we wish to highlight a review by J. A. Granick and D. K. Newman called Extracellular Respiration.
The title refers to the procurement of energy from extracellular substrates by microbes.