N.L. n. azotum, nitrogen; from French n. azote; from Gr. prep. a, not; from Gr. n. zôê, life; from N.Gr. n. azôê, not sustaining life; N.L. pref. azo-, pertaining to nitrogen; L. fem. n.monas, a unit, monad; N.L. fem. n.Azomonas, nitrogen monad
The type species of this genus has alternatively been placed in the genus Azotobacter Beijerinck 1901 (Approved Lists 1980).Publication:
Beijerinck MW. Über oligonitrophile Mikroben. Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Abteilung II 1901; 7:561-582.
A consideration of the phenotypic determinative characteristics of the genera Azomonas Winogradsky 1938 (Approved Lists 1980) and Azotobacter Beijerinck 1901 (Approved Lists 1980) supports the synonymy of these genera as indicated by the sequence data. An investigation of these two genera, with a wider selection of strains, including the type species of Azomonas ( Azomonas agilis), and perhaps based on other genes, might support their synonymy. If they are established as a single genus, Azotobacter would take priority over Azomonas.Publication:
Young JM, Park DC. Probable synonymy of the nitrogen-fixing genus Azotobacter and the genus Pseudomonas. Int J Syst Evol Microbiol 2007; 57:2894-2901.
At the molecular level, the similarity of Azotobacter species housekeeping gene and 16S rRNA gene sequences with those of Pseudomonas, especially Pseudomonas aeruginosa (the type species of the genus), point to an intimate relationship between these taxa.
Number of child taxa with a validly published and correct name: 3 Number of child taxa with a validly published name, including synonyms: 3 Total number of child taxa: 3