gram-positive vs gram-negative
Definitions
adjective
- (of bacteria) being or relating to a bacterium that retains the violet stain used in Gram's method
Examples
The cell envelope of gram-positive bacteria consists of the cytoplasmic membrane and a cell wall.
As in Gram-positive bacteria, the inner membrane of spirochetes is closely associated with the peptidoglycan cell wall.
Lactococcus lactis, and is the only bacteriocin recognized as safe by the World Health Organization (WHO) for use within food production, and the authors said that it exhibits antimicrobial activity toward a wide range of Gram-positive bacteria, nisin was incorporated into sorbitol-plasticized sodium caseinate films at 1000 IU/cm2 and the films were prepared by casting methods.
Definitions
adjective
- (of bacteria) being of or relating to a bacterium that does not retain the violet stain used in Gram's method
Examples
The causative organism of gonorrhea, Neisseria gonorrhoeae, is a fastidious gram-negative diplococcus, which closely resembles the related human pathogen, Neisseria meningitidis, as well as several commensal species.
The incidence of Gram-negative bacteremia was significantly higher in bacteremic ICU patients with septic shock than in those with sepsis or severe sepsis.
With the continued use of colistin for treatment of infection with various multidrug-resistant Gram-negative pathogens, it is likely that we will see an increasing number of instances of both de novo emergence of resistance and nosocomial spread.
