Nitrospira is a genus of bacteria in the phylum Nitrospirae. The first member of this genus was discovered in 1995 from a corroded iron pipe in a Moscow heating system. The bacteria was named Nitrospira moscoviensis and is a gram-negative nitrite-oxidising organism with a helical to vibroid morphology 0.9-2.2 x 0.2-0.4 micrometres in size.^[1] The phylum Nitrospirae includes thermophilic bacteria that fix nitrogen to nitrogen gas (N₂).

References