Advances in Microbial Physiology, Volume 87 is the latest release in this ongoing long-establised series and continues the tradition of topical, important, cutting-edge reviews in microbiology. The editors have always striven to view microbial physiology in the broadest sense to include 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, A Lysis Less Ordinary: The Bacterial Type 10 Secretion System.