Pseudomonadaceae
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The Pseudomonadaceae are a family of bacteria, including Pseudomonas and 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.
According to Jay (2000) and Vela (1997), bacteria in the family Pseudomonadaceae are among the most important spoilage bacteria that originate in refrigerated raw milk. Jay (2000) also stated that they are considered psychrotrophs and grow well at temperatures of 0 to 15 degrees celsius.
References
Note 1: Rediers H, Vanderleyden J, De Mot R. 2004. Azotobacter vinelandii: a Pseudomonas in disguise? Microbiology 150 (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.
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