Pseudomonas stutzeri is a Gram-negative

Gram-negative

Gram-negative bacteria are bacteria that do not retain crystal violet dye in the Gram staining protocol. In a Gram stain test, a counterstain is added after the crystal violet, coloring all Gram-negative bacteria with a red or pink color...

, rod-shaped, motile, single polar-flagellated, soil

Soil

Soil is a natural body consisting of layers of mineral constituents of variable thicknesses, which differ from the parent materials in their morphological, physical, chemical, and mineralogical characteristics...

 bacterium first isolated from human spinal fluid.. It is a denitrifying bacterium, and strain KC of P. stutzeri may be used for bioremediation

Bioremediation

Bioremediation is the use of microorganism metabolism to remove pollutants. Technologies can be generally classified as in situ or ex situ. In situ bioremediation involves treating the contaminated material at the site, while ex situ involves the removal of the contaminated material to be treated...

 as it is able to degrade carbon tetrachloride

Carbon tetrachloride

Carbon tetrachloride, also known by many other names is the organic compound with the formula CCl4. It was formerly widely used in fire extinguishers, as a precursor to refrigerants, and as a cleaning agent...

. It is also an opportunistic pathogen

Nosocomial infection

A nosocomial infection , also known as a hospital-acquired infection or HAI, is an infection whose development is favoured by a hospital environment, such as one acquired by a patient during a hospital visit or one developing among hospital staff...

 in clinical settings, although infections are rare. Based on 16S rRNA analysis, P. stutzeri has been placed in the P. stutzeri group, to which it lends its name.

The Pseudomonas stutzeri group

P. stutzeri lends its name to a subgroup within the genus Pseudomonas

Pseudomonas

Pseudomonas is a genus of gammaproteobacteria, belonging to the family Pseudomonadaceae containing 191 validly described species.Recently, 16S rRNA sequence analysis has redefined the taxonomy of many bacterial species. As a result, the genus Pseudomonas includes strains formerly classified in the...

. The other members of the P. stutzeri subgroup are P. balearica

Pseudomonas balearica

Pseudomonas balearica is a Gram-negative, rod-shaped, motile bacterium. It is an environmental bacterium, and has demonstrated the potential to oxidize inorganic sulfur compounds to tetrathionate. Based on 16S rRNA analysis, P. balearica has been placed in the P. stutzeri group....

and P. luteola

Pseudomonas luteola

Pseudomonas luteola is a Gram-negative, rod-shaped, motile, oxidase-negative, esculin positive bacterium that can cause peritonitis, cellulitis, and bacteremia. It has also been shown to reduce, and hence de-color, azo dyes, and is capable of biosorption of certain heavy metal ions such as...

.

External links

• Migula's Systematic Bacteriology (in German)