The Nitrospirota are a phylum of bacteria. They include multiple genera such as Nitrospira, the largest.
History of knowledge The first member of this phylum, Nitrospira marina, was discovered in 1985. The second member, Nitrospira moscoviensis, was discovered in 1995. Nitrospira inopinata was discovered in 2015 and cultivated in 2017.
Metabolism Nitrospirota contains nitrifying taxa which oxidize nitrite to nitrate (nitrite-oxidizing bacteria, NOB) and commamox bacteria: Nitrospira inopinata. Dissulfurispira thermophila (Thermodesulfovibrionia) grows by disproportionation of thiosulfate or elemental sulfur, so far the only known member of Nitrospirota capable of microbial sulfur disproportionation (MSD).
Phylogeny
Taxonomy The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LSPN) and National Center for Biotechnology Information (NCBI).
Genus ?"Candidatus Thermomagnetovibrio" Lefèvre et al. 2010 Class Nitrospiria Garrity & Holt 2022 Order Nitrospirales Garrity & Holt 2022 Family UBA8639 Genus "Candidatus Nitronereus" Mueller et al. 2023 Family Nitrospiraceae Garrity & Holt 2022 Genus ?"Candidatus Nitronatura" Singleton et al. 2025 Genus ?"Candidatus Nitrosymbion" Glasl et al. 2024 Genus ?"Candidatus Porinitrospira" Taylor et al. 2022 Genus Nitrospira Watson et al. 1986 Order "Troglogloeales" Yu et al. 2022 Genus ?"Candidatus Troglogloea" corrig. Kostanjsek et al. 2013 Family "Manganitrophaceae" Yu et al. 2022 Genus "Candidatus Manganitrophus" Yu & Leadbetter 2020 Class Thermodesulfovibrionia Umezawa et al. 2021 Order "Mariimomonadales" Yoon et al. 2023 Family "Mariimomonadaceae" Yoon et al. 2023 Genus ?"Candidatus Mariimomonas Yoon et al. 2023 Order Thermodesulfovibrionales Umezawa et al. 2023 Family "Sulfobiaceae" Pallen, Rodriguez-R & Alikhan 2022 [UBA6898] Genus "Candidatus Sulfobium" Zecchin et al. 2018 Family Thermodesulfovibrionaceae Umezawa et al. 2021 Genus Thermodesulfovibrio Henry et al. 1994 emend. Sekiguchi et al. 2008 Family Dissulfurispiraceae Umezawa et al. 2021 Genus Dissulfurispira Umezawa et al. 2021 Genus "Candidatus Nitrobium" Arshad et al. 2017 Family "Magnetobacteriaceae" Chuvochina et al. 2023 Genus "Candidatus Magnetobacterium" Spring et al. 1993 Genus "Candidatus Magnetocorallium" Zhao et al. 2023 Genus "Candidatus Magnetomicrobium" Zhang et al. 2021 Genus "Candidatus Magnetominusculus" Lin et al. 2017 Genus ?"Candidatus Magnetovum" corrig. Lefevre et al. 2011
See also Comammox Nitrate Nitrite Nitrogen cycle Nitrobacter Nitrobacteraceae Nitrosomonas Nitrospira List of bacterial orders List of bacteria genera
References
Further reading
External links "Leptospirillum sp".
