Nitrosococcus is a genus of Gram-negative bacteria. It is an ammonia-oxidizing bacterium which oxidizes ammonia into nitrite. Nitrosococcus can be found in marine environments and salt lakes.
References
George M. Garrity: Bergey's Manual of Systematic Bacteriology. 2. Auflage. Springer, New York, 2005, Volume 2: The Proteobacteria, Part B: The Gammaproteobacteria /wiki/Bergey%27s_Manual_of_Systematic_Bacteriology ↩
Campbell MA, Chain PS, Dang H, El Sheikh AF, Norton JM, Ward NL, Ward BB, Klotz MG (2011). "Nitrosococcus watsonii sp. nov., a new species of marine obligate ammonia-oxidizing bacteria that is not omnipresent in the world's oceans: Calls to validate the names 'Nitrosococcus halophilus' and 'Nitrosomonas mobilis'.". FEMS Microbiol Ecol. 76 (1): 39–48. Bibcode:2011FEMME..76...39C. doi:10.1111/j.1574-6941.2010.01027.x. PMID 21204874. /wiki/Bibcode_(identifier) ↩