Gram stain (Gram staining or Gram's method), is a method of staining used to classify bacterial species into two large groups: gram-positive bacteria...

In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify...

counterstain is stain that makes cells or structures more visible, when not completely visible with the principal stain. Crystal violet stains both Gram positive...

Gram-negative bacteria are bacteria that unlike gram-positive bacteria do not retain the crystal violet stain used in the Gram staining method of bacterial...

Christian Joachim Gram (13 September 1853 – 14 November 1938) was a Danish bacteriologist noted for his development of the Gram stain, still a standard...

rendering them resistant to conventional staining techniques like the Gram stain. After the Ziehl-Neelsen staining procedure using carbol fuchsin, acid-fast...

the Gram stain, but they do not take the crystal violet well and thus appear light purple, which can still potentially result in an incorrect gram negative...

inside the vagina should be obtained. These swabs can be tested for: Gram stain which shows the depletion of lactobacilli and overgrowth of Gardnerella...

to allow the organisms to multiply. If microbial growth is detected, a Gram stain is conducted from the culture bottle to confirm that organisms are present...

differential staining is the Gram stain. Gram staining uses two dyes: Crystal violet and Fuchsin or Safranin (the counterstain) to differentiate between Gram-positive...

color upon Gram staining; there are both gram-positive rods and gram-negative rods. MacConkey agar can be used to distinguish among gram-negative bacilli...

pharmaceutical contract manufacturer Gram stain Grand Rapids Art Museum (GRAM), Michigan Gramin Agriculture Markets (GrAM), in India Slang term for Instagram...

characteristic of Gram-positive bacteria. Despite this evolutionary divergence, instances have been reported where U. urealyticum, upon gram staining, exhibited...

Most pathogenic bacteria can be grown in cultures and identified by Gram stain and other methods. Bacteria grown in this way are often tested to find...

Giemsa stain (/ˈɡiːmzə/), named after German chemist and bacteriologist Gustav Giemsa, is a nucleic acid stain used in cytogenetics and for the histopathological...

classify bacteria into Gram-positive bacteria and Gram-negative bacteria. The names originate from the reaction of cells to the Gram stain, a long-standing...

The Nugent Score is a Gram stain scoring system for vaginal swabs to diagnose bacterial vaginosis (BV). The Nugent score is calculated by assessing for...

Ceftriaxone Gram negative bacilli – Ceftriaxone, cefotaxime, or ceftazidime Gram stain negative and immunocompetent – vancomycin Gram stain negative and...

management, and safety are unknown. If Gram-negative, oxidase-positive diplococci are visualized on direct Gram stain of urethral pus (male genital infection)...

steps. This staining process allows for the identification of gram-negative and gram positive bacteria. Gram-negative bacteria will stain a pink color...

(haematoxylin-eosin stain, zoom 100×): the large white areas between the muscle fibers are due to gas formation. Gram stain of a muscle biopsy showing Gram-positive...

to their small size. Staining has more of an effect on bacteria where a violet colored stain is used, this is called gram staining. If the bacteria appears...

mycolic acid, in their cell walls which allow them to be stained with Acid-Fast better than a Gram-Stain. The unique ability of mycobacteria to resist decolorization...

of ampicillin is recommended to cover Listeria monocytogenes. Once the Gram stain results become available, and the broad type of bacterial cause is known...

categories: a Gram-positive type which stains purple during Gram staining and a Gram-negative type which stains pink during Gram staining. Either type...

absent cell wall structures and do not take up Gram stain in the same manner as gram-negative and gram-positive organisms. Pneumonia Fever Rigors Cough...

the cell wall in Gram-negative bacteria. The peptidoglycan layer takes up the crystal violet dye and stains purple in the Gram stain. Bacteria within...

Bacillota staining positive for the Gram stain and being trivially called "low-GC Gram-positives" (c.f. Bacterial phyla), members of the Negativicutes stain Gram-negative...

used in a clinical setting is a Nugent score. To obtain a Nugent score, gram stain techniques are carried out and it characterizes the bacterial morphology...

bacteria that do not get colored by gram-staining but rather remain colorless: they are neither Gram-positive nor Gram-negative. These include the Chlamydiaceae...