Does sphingomonas grow on MacConkey?

Sphingomonas spp., Sphingobacterium spp., Acidovorax facilis, and all CDC groups considered in this chapter grow well on routine laboratory media, such as 5% sheep blood and chocolate agars; however, most fail to grow on MacConkey agar.

Does sphingomonas Paucimobilis grow on MacConkey?

S. paucimobilis is a polymorphic gram-negative rod and is strictly aerobic, weakly oxidase positive, and catalase positive. Colonies grow on blood agar but not MacConkey agar and produce a yellow pigment.

Is sphingomonas gram positive?

Sphingomonas is a Gram-negative, nonsporeforming, chemoheterotrophic, strictly aerobic bacterium that typically produces yellow- or off-white-pigmented colonies.

Is sphingomonas oxidase positive?

The organism was positive for Catalase, Oxidase, and esculin hydrolysis and negative for indole, citrate, and nitrate reduction. It showed red/red reaction with no gas and H2S production on TSI agar slant. The differentiating features of two pathogenic species of Sphingomonas (i.e. S. paucimobilis & S.

What causes sphingomonas Paucimobilis?

paucimobilis are due to contaminated solutions (9, 6, 18, 27). These solutions can include a wide range of substances including distilled water, haemodialysis fluid, and sterile drug solutions (10, 17, 26). These have led to both bloodstream (bacteraemia) and peritoneal infections.

Where is sphingomonas found?

Sphingomonas paucimobilis (S. paucimobilis) is a gram negative bacillus. It has existed in soil, drinking water and plants. It has been isolated from distilled water tanks, respirators, and hemodialysis devices at the hospital setting.

Where does sphingomonas Paucimobilis come from?

Is sphingomonas Paucimobilis pathogenic?

Sphingomonas paucimobilis is a Gram-negative bacillus that is emerging as an opportunistic pathogen. It is widely found in nature, especially in water and soil, and has been isolated from hospital environments such as distilled water, nebulizers, and multiple equipments used in medical care.

How do you get sphingomonas Paucimobilis?

Many cases of infection with S. paucimobilis are due to contaminated solutions (9, 6, 18, 27). These solutions can include a wide range of substances including distilled water, haemodialysis fluid, and sterile drug solutions (10, 17, 26). These have led to both bloodstream (bacteraemia) and peritoneal infections.

Where is sphingomonas Paucimobilis naturally found?

What species is sphingomonas?

Sphingomonas species are Gram-negative, obligate aerobic rod-shaped bacteria. The flagellated, non-fermenting bacteria are widespread in the environment. Human infections with Sphingomonas paucimobilus and Sphingomonas mucosissima have been reported.

Is Sphingomonas paucimobilis Gram positive or negative?

Sphingomonas paucimobilis: a persistent Gram-negative nosocomial infectious organism Non-fermenting Gram-negative bacilli create a significant problem in clinical settings, being the most widespread cause of nosocomial infections. They are opportunistic pathogens that take advantage of underlying conditions and diseases.

How many species of Sphingomonas are there?

Sphingomonas Species. The genus Sphingomonas contains at least 12 species, of which only one, Sphingomonas paucimobilis, is an occasional human pathogen. This organism, formerly known as Pseudomonas paucimobilis and CDC group IIk-1, is widely distributed in soil and water, including water sources in the hospital environment.

What substrate does Sphingomonas paucimobilis EPA 505 grow on?

Sphingomonas paucimobilis EPA 505 grows on naphthalene, phenanthrene, anthracene, and fluoranthene, and the dioxygenase responsible for initiating degradation of these substrates also oxidizes biphenyl and benz [a]anthracene [182–184]. Lukasz Szatkowski, Piotr Paneth, in Methods in Enzymology, 2017

What is Pseudomonas paucimobilis?

Pseudomonas paucimobilis, a new species isolated from Human Clinical Specimens, the hospital environment, and other sources. Int J Syst Bacteriol.