<p>Part I. Modeling</p> <ol> <p> <li>Modelling the role of nitrification in open 1 ocean productivity and the nitrogen cycle</li> <p>Andrew Yool</p> <p> <li>Continuous cultivation and thermodynamic aspects of niche definition in the Nitrogen cycle</li> <p>Stefanie Müller and Marc Strous</p> <p>Part II. Cultivation and cell physiology</p> <p> <li>Isolation, cultivation, and characterization of ammonia-oxidizing bacteria and archaea adapted to low ammonium concentrations</li> <p>Annette Bollmann, Elizabeth French and Hendrikus J. Laanbroek</p> <p> <li>Cultivation, Detection and Ecophysiology of Anaerobic Ammonium-Oxidizing Bacteria</li> <p>Boran Kartal, Wim Geerts and Mike S. M. Jetten</p> <p> <li>Cultivation, growth physiology and chemotaxonomy of nitrite-oxidizing bacteria</li> <p>Eva Spieck and André Lipski</p> <p> <li>Surveying N2O-Producing Pathways in Bacteria</li> <p>Lisa Y. Stein</p> <p>Part III. Molecular Microbial Ecology And Processes Measurements</p> <p> <li>Stable isotope probing with 18O-water to investigate growth and mortality of ammonia oxidizing bacteria and archaea in soil</li> <p>Karen Adair and Egbert Schwartz</p> <p> <li>Measuring Nitrification, Denitrification, and Related Biomarkers in Terrestrial Geothermal Ecosystems</li> <p>Jeremy A. Dodsworth, Bruce Hungate, José R. de la Torre, Hongchen Jiang, and Brian P. Hedlund</p> <p> <li>Determining the distribution of marine and coastal ammonia-oxidizing archaea and bacteria using a quantitative approach</li> <p>Annika C. Mosier and Christopher A. Francis</p><SUP> <p> <li>15</SUP>N-labeling experiments to dissect the contributions of heterotrophic denitrification and anammox to nitrogen removal in the OMZ waters of the ocean</li> <p>Moritz Holtappels, Gaute Lavik, Marlene M. Jensen and Marcel M.M. Kuypers</p> <p> <li>Assessment of nitrogen and oxygen isotopic fractionation during nitrification and its expression in the marine environment</li> <p>Karen L. Casciotti, Carolyn Buchwald, Alyson E. Santoro, and Caitlin Frame</p> <p> <li>Identification of Diazotrophic Microorganisms in Marine Sediment Via Fluorescence in situ Hybridization Coupled to Nanoscale Secondary Ion Mass Spectrometry (FISH-NanoSIMS)</li> <p>Anne E. Dekas and Victoria J. Orphan</p> <p> <li>Measurement and Distribution of Nitrification Rates in the Oceans</li> <p>B. B. Ward</p> <p> <li>Construction of STOX Oxygen Sensors and Their Application for Determination of O<SUB>2</SUB> Concentrations in Oxygen Minimum Zones</li> <p>Niels Peter Revsbech, Bo Thamdrup, Tage Dalsgaard and Donald Eugene Canfield</p> <p> <li>Regulation and measurement of nitrification in terrestrial systems</li> <p>Jeanette M. Norton and John M. Stark</p> <p> <li>Protocol for the measurement of nitrous oxide fluxes from biological wastewater treatment plants</li> <p>Kartik Chandran</p> <p>Part IV. Genetics, Biochemistry and Biogeochemistry</p> <p> <li>Genetic Transformation of Ammonia-Oxidizing Bacteria</li> <p>Luis A. Sayavedra-Soto and Lisa Y. Stein</p> <p> <li>Dissecting Iron Uptake and Homeostasis in Nitrosomonas europaea</li> <p>Luis A. Sayavedra-Soto, Neeraja Vajrala, and Daniel J. Arp</p> <p> <li>Production of recombinant multiheme cytochromes c in Wolinella succinogenes</li> <p>Melanie Kern and Jörg Simon</p> <p> <li>Techniques for Investigating Hydroxylamine Disproportionation by Hydroxylamine Oxidoreductases</li> <p>A. Andrew Pacheco, Jennifer McGarry, Joshua Kostera and Angel Corona</p> <p> <li>Liquid chromatography - mass spectrometry based proteomics of Nitrosomonas</li> <p>Hans J.C.T. Wessels, Jolein Gloerich, Erwin van der Biezen, Mike S. M. Jetten and Boran Kartal</p> <p> <li>The Geochemical Record of the Ancient Nitrogen Cycle, Nitrogen Isotopes and Metal Co-factors</li> </ol> <p>L.V. Godfrey1 and J.B. Glass</p>