What is gordonia Sputi?

February 14, 2021 Off By idswater

What is gordonia Sputi?

Gordonia spp. are environmental bacteria whose implication in human disease seems to be increasing. Phenotypic identification of bacteria included in this genus is difficult, and they are often poorly identified as Rhodococcus spp. or Corynebacterium spp. Molecular identification of Gordonia spp.

Is gordonia acid fast?

Gordonia species are Gram-positive, partially acid-alcohol fast, catalase-positive, aerobic, chemoorganotrophic mycolic acid–containing coccobacillary actinomycetes with high G + C contents in their DNA (63–69%).

Where is gordonia found?

Gordonia spp., previously classified as Rhodococcus spp., are ubiquitous in the environment, and often are found in soil and water.

Is gordonia a mycobacterium?

Gordonia is a genus of bacterium in the Actinobacteria, the same lineage that includes Mycobacterium tuberculosis. The genus was named after American bacteriologist Ruth Gordon in 1971 by Tsukamura.

Do mycobacteria have a cell wall?

The distinguishing feature of mycobacteria, the complex cell wall, is a well-recognized drug target. The cell wall is common to all bacteria, both Gram-positive and Gram-negative, but can have vast differences in terms of the biochemical and structural features.

What type of cell is TB?

Tuberculosis (TB) is caused by a bacterium called Mycobacterium tuberculosis.

Is TB Gram negative or positive?

tuberculosis belongs to the high G+C Gram-positive bacteria that form a monophyletic group with the low G+C Gram-positive bacteria such as Bacillus subtilis.

Is E. coli rod-shaped or cocci?

E. coli is a Gram negative anaerobic, rod-shaped, coliform bacteria of the genus Escherichia, commonly found in the lower intestine of humans and animals.

What is the main function of teichoic acid?

Function. The main function of teichoic acids is to provide flexibility to the cell-wall by attracting cations such as calcium and potassium. Teichoic acids can be substituted with D-alanine ester residues, or D-glucosamine, giving the molecule zwitterionic properties.

How is Gordonia Sputi bacteremia molecularly identified?

Phenotypic identification of bacteria included in this genus is difficult, and they are often poorly identified as Rhodococcus spp. or Corynebacterium spp. Molecular identification of Gordonia spp. by using 16S rRNA gene sequence comparison enables their characterization in human disease because the method is more accurate.

Is there an antimicrobial drug for Gordonia Sputi?

Antimicrobial drug susceptibility is similar to that of Rhodococcus spp., for which Gordonia spp. are usually incorrectly identified. However, although vancomycin is often used to treat Rhodococcus spp. infections, in a previous study 11% of Gordonia spp. isolates were resistant (6).

Why was g.sputi ruled out as a contaminant?

We concluded that our patient had catheter-related bacteremia caused by G. sputi because he was immunocompromised and had a CVC. We ruled out a contaminant because the organism did not belong to the normal flora of human skin and because fever resolved after treatment with antimicrobial drugs.

What kind of cancer did Gordonia Sputi have?

In September 2007, he had received a diagnosis of laryngeal cancer, which required 2 chemotherapy treatments through a central venous catheter (CVC), the second of which he had received 6 days before his November visit. Prostatic cancer, diagnosed 1.5 years earlier, had been treated by radiotherapy.