A research progress in nitrogen conversionAnammox and prosp ects of its application Widespread of anaerobic ammonia oxidation bacteria in an eutrophic freshwater lake wetland and its impact on nitrogen cycle The biochemical mechanism and application of anammox in the wastewater treatment process Response of anammox bacteria community structure to nitrogen in paddy soils Research progress in anammox-denitrification coupling process. Vertical distribution and diversity of ammonia-oxidizing prokaryotes in a sediment core from Zhushan Bay, Lake Taihu Review of the key enzymes in the anammox process and ecological inferences derived from related molecular markers