作者: Bongkeun Song , Craig R. Tobias
DOI: 10.1016/B978-0-12-386489-5.00003-8
关键词:
摘要: Numerous microbial processes transform nitrogen (N) but three anaerobic respiratory pathways remove fixed N from the environment: denitrification (nitrate conversion to N(2)), ammonium oxidation (anammox; plus nitrite and dependent methane (nitrite N(2)). Nitrification becomes a part of removal as supplier (NO(2)(-)) nitrate (NO(3)(-)) anammox denitrifying bacteria in anoxic water sediments. It is important detect measure understand biogeochemical cycle estimate potential aquatic ecosystems. Denitrification has been extensively studied many ecosystems examine diversity spatial temporal dynamics communities well its importance regional global cycles. Nitrite was recently discovered new pathway removing just started different Anammox undergone limited examination, although number studies continuously increasing. There are questions remaining order factors controlling activities community structures This chapter reviews both molecular stable isotope methods sediments water.