Advances in Microbial Physiology, Volume 86, the latest release in this ongoing series, continues the tradition of topical, important, cutting-edge reviews in microbiology. The editors have always strived to view microbial physiology in the broadest sense. In this volume, chapters deal with Diversity in the physiology and metabolism of chlorophototrophic bacteria, Copper homeostasis in Streptococcus and Neisseria: known knowns and unknown knowns, A Lysis Less Ordinary: The Bacterial Type 10 Secretion System, Cytochrome bd-type oxidases and environmental stressors in microbial physiology, and Multiple roles for iron in microbial physiology: bacterial oxygen sensing by heme-based sensors.