gram-negative


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Related to gram-negative: gram-positive, gram-negative folliculitis

gram-neg·a·tive

or Gram-neg·a·tive (grăm′nĕg′ə-tĭv)
adj.
Of, relating to, or being a bacterium that does not retain the violet stain used in the Gram stain method.

Gram-negative

adj
(Microbiology) designating bacteria that fail to retain the violet stain in Gram's method

Gram′-neg′ative

(græm)

adj. (often l.c.)
(of bacteria) not retaining the violet dye when stained by Gram's method.
[1905–10]

gram-negative

Relating to a group of bacteria that generally are resistant to the effects of antibiotics or the actions of the body's immune cells. Gram-negative bacteria have relatively thin cell walls and, when subjected to a specialized laboratory staining method, do not change color. Compare gram-positive.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.Gram-negative - (of bacteria) being of or relating to a bacterium that does not retain the violet stain used in Gram's method
bacteria, bacterium - (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants
disconfirming, negative - not indicating the presence of microorganisms or disease or a specific condition; "the HIV test was negative"
Translations

gram-neg·a·tive

n. gram-negativo, resultado de la aplicacion del método de Gram de decoloración de una bacteria o tejido por medio de alcohol.

Gram-negative

adj Gram negativo
References in periodicals archive ?
coli virulence factors include the surface component 'adhesin' and a variety of iron sequestration systems.11 Pathogens of urinary tract include other Gram-negative bacilli such as Klebsiella spp.
Release date- 01082019 - Researchers from the University of Liverpool have joined a new consortium to help in the development of novel antibacterial agents to battle antimicrobial resistance in gram-negative bacteria.
Recabrio is indicated in patients 18 years of age and older who have limited or no alternative treatment options, for the treatment of complicated urinary tract infections, including pyelonephritis, caused by the susceptible Gram-negative microorganisms.
Gram-negative organisms are generally determined as normal flora in healthy individuals, as they hardly cause serious infection in healthy individual, but become great concern in hospitalized, immunocompromised, and in intensive health care unit patients, where they causes severe invasive infection and responsible for nosocomial outbreak due to several resistance mechanisms (Nordmann and Poirel, 2002).
Gram-negative bacteria are widely regarded as the culprit representing one of the gravest dangers.
The team, led by professor Jim Thomas, from the University of Sheffield's Department of Chemistry, is testing new compounds developed by his PhD student Kirsty Smitten on antibiotic-resistant gram-negative bacteria, including pathogenic E.
M2 PHARMA-March 1, 2019-VenatoRx Pharmaceuticals Awarded NIAID R01 Grant to Uncover Determinants of Gram-Negative Permeability
Gram-negative bacteria are considerably the most concerning antibiotic-resistant bacteria, as they have two membranes antibiotics need to penetrate.
Multidrug resistance (MDR) in gram-negative pathogens is the emerging threat to clinicians.
(NASDAQ: AKAO), a late-stage biopharmaceutical company developing innovative antibacterials addressing multi-drug resistant (MDR) gram-negative infections, has entered into a new secured credit facility with Silicon Valley Bank (SVB), the bank of the world's most innovative companies and their investors, the company said.
It is concluded that non-fermenting Gram-negative bacilli isolated from different clinical specimens should not be ignored and identified by using standard methods so as to institute appropriate and timely anti-biotic coverage.
Bacteria come in two flavors: Gram-positive and Gram-negative. Gram is a violet dye, named for its discoverer, that is more readily taken up by some microbes (the Gram-positive ones) than by others (you guessed it, the Gram-negative ones).