Pseudomonadaceae
From Wikipedia, the free encyclopedia
 |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Scientific classification | ||||||||||
|
||||||||||
|
|
||||||||||
|
Azomonas |
Pseudomonadaceae is a family of bacteria that includes the genera Azomonas, Azomonotrichon, Azorhizophilus, Azotobacter, Cellvibrio, Chryseomonas, Flavimonas, Mesophilobacter, Pseudomonas (the type genus), Rhizobacter, Rugamonas, and Serpens [1]. Many members of this group produce derivatives of the flourecent pigment pyoverdine.[2] The Azotobacteriaceae were recently published as belonging in this family as well.[3]
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.
Distinguishing characteristics of Pseudomonads: they are oxidase positive- this is due to the presence of cytochrome c oxidase enzyme, many metabolise glucose by the Entner Doudoroff pathway mediated by the following enzymes- 6 phosphoglyceraldehyde dehydrogenase and aldolase. The presence of oxidase, polar flagella and inability to carry out fermentation differentiate Pseudomonads from Enterobacteriaceae.
[edit] References
- ^ Skerman, McGowan and Sneath (editors): Approved Lists of Bacterial Names. Int. J. Syst. Bacteriol., 1980, 30, 225-420.
- ^ Meyer J (2000). "Pyoverdines: pigments, siderophores and potential taxonomic markers of fluorescent Pseudomonas species". Arch Microbiol 174 (3): 135-42. PMID 11041343.
- ^ Rediers H, Vanderleyden J, De Mot R (2004). "Azotobacter vinelandii: a Pseudomonas in disguise?". Microbiology 150 (Pt 5): 1117-9. PMID 15133068.
 |
This Proteobacteria-related article is a stub. You can help Wikipedia by expanding it. |
