The Pseudomonadaceae are a family of bacteria, including Pseudomonas, Cellvibrio, together with the Azotobacter group. This group contains several named genera: Azomonas, Azorhizophilus, and Azotobacter. Many members of this group produce different derivatives of the flourecent pigment pyoveridne². The Azotobacteriaceae were recently published as belonging in this family as well¹. Phyla/Divisions Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Omnibacteria Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular, bacterium) are a major group of living organisms. ... Species P. fluorescens P. putida etc. ... Species A. vinladii Azotobacter are usually motile, oval, or spherical bacteria, form thick-walled cysts, and may produce large quantities of capsular slime. ... Species Azomonas are typically motile, oval to spherical, and secrete large quantities of capsular slime. ... Species A. vinladii Azotobacter are usually motile, oval, or spherical bacteria, form thick-walled cysts, and may produce large quantities of capsular slime. ...

Note 1: Rediers H, Vanderleyden J, De Mot R. 2004. Azotobacter vinelandii: a Pseudomonas in disguise? Microbiology. 150Pt 5):1117-9. Note 2: Meyer JM. 2000. Pyoverdines: pigments, siderophores and potential taxonomic markers of fluorescent Pseudomonas species. Arch Microbiol. 174(3):135-42.