gram-positive


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to gram-positive: Gram-positive cocci

gram-positive

[′gram ¦päs·əd·iv]
(microbiology)
Of bacteria, holding the color of the primary stain when treated with Gram's stain.
References in periodicals archive ?
In gram-positive cells, crystal violet slowly drains from the thick peptidoglycan barrier, but not quickly enough to leave the cell colorless during the protocol.
The following gram-positive bacteria were identified on bacterial culture: Brevibacterium species, Cellumonas/Microbacterium species, Corynebacterium argentoratense, Corynebacterium species, Enterococcus species, and Staphylococcus species (coagulase negative) (Table 1).
The findings from a prospective, multi-centre study showed that the test can simultaneously detect and identify Staphylococcus aureus and 11 other gram-positive bacterial gene targets that cause bloodstream infections and three genetic resistance determinants, namely the mecA, vanA and vanB genes, directly from positive blood culture media.
Lipoteichoic acid is a substance created and present in the cell wall of Gram-positive bacteria.
Infections caused by Gram-positive bacteria: a review of the global challenge.
MacConkey agar contains bile salts and crystal violet, which inhibit the growth of Gram-positive bacteria.
In 2006, four isolates of gram-positive curved bacilli that grew on Columbia agar with 5% horse blood under anaerobic conditions were referred by 2 regional hospitals in Hong Kong to our laboratory for identification.
In patients with gram-positive infections only, mortality was similar for patients on linezolid and those on a comparator (16.
In patients with gram-positive infections only, mortality was about equal for those on linezolid and those on a comparator (16.
In contrast to vancomycin, ceftobiprole has in vitro microbiological activity against a broad spectrum of Gram-positive and Gram-negative pathogens.
It exerts strong antibacterial effects against gram-positive and gram-negative bacteria, aerobes, anaerobes as well as Pseudomonas aeruginosa.

Full browser ?