Cover -- Contents -- Contributors -- Preface -- I: OVERVIEW -- 1. Nitrification: an Introduction and Overview of the State of the Field -- II: AMMONIA-OXIDIZING BACTERIA -- 2. Ammonia-Oxidizing Bacteria: Their Biochemistry and Molecular Biology -- 3. Diversity and Environmental Distribution of Ammonia-Oxidizing Bacteria -- 4. Genomics of Ammonia-Oxidizing Bacteria and Insights into Their Evolution -- 5. Heterotrophic Nitrification and Nitrifier Denitrification -- III: AMMONIA-OXIDIZING ARCHAEA -- 6. Physiology and Genomics of Ammonia-Oxidizing Archaea -- 7. Distribution and Activity of Ammonia-Oxidizing Archaea in Natural Environments -- IV: ANAEROBIC AMMONIA OXIDATION (ANAMMOX) -- 8. Metabolism and Genomics of Anammox Bacteria -- 9. Distribution, Activity, and Ecology of Anammox Bacteria in Aquatic Environments -- 10. Application of the Anammox Process -- V: NITRITE-OXIDIZING BACTERIA -- 11. Metabolism and Genomics of Nitrite-Oxidizing Bacteria: Emphasis on Studies of Pure Cultures and of Nitrobacter Species -- 12. Diversity, Environmental Genomics, and Ecophysiology of Nitrite-Oxidizing Bacteria -- VI: PROCESSES, ECOLOGY, AND ECOSYSTEMS -- 13. Nitrification in the Ocean -- 14. Soil Nitrifiers and Nitrification -- 15. Nitrification in Inland Waters -- 16. Nitrification in Wastewater Treatment -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- V -- W.