Advances in Microbial Physiology, Volume 87, the latest release in this ongoing long-established series, continues the tradition of topical, important, cutting-edge reviews in microbiology. The book's editors have strive to view microbial physiology in the broadest sense by including any topics that help us understand how micro-organisms "work". In this volume, Chapters deal with Diversity in the physiology and metabolism of chlorophototrophic bacteria, Multiple roles for iron in microbial physiology: bacterial oxygen sensing by heme-based sensors, and A Lysis Less Ordinary: The Bacterial Type 10 Secretion System.