Gram's method

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Gram's method

(Microbiology) bacteriol a staining technique used to classify bacteria, based on their ability to retain or lose a violet colour, produced by crystal violet and iodine, after treatment with a decolorizing agent. See also Gram-negative, Gram-positive

[C19: named after Hans Christian Joachim Gram (1853–1938), Danish physician]

Gram's′ meth′od

(græmz)
n.

(sometimes l.c.) a method of characterizing bacteria that involves staining a slide of fixed specimens with gentian violet, washing with alcohol, and applying a counterstain.

[after Hans C. J. Gram (1853–1938), Danish bacteriologist]

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Noun

Gram's method - a staining technique used to classify bacteria; bacteria are stained with gentian violet and then treated with Gram's solution; after being decolorized with alcohol and treated with safranine and washed in water, those that retain the gentian violet are Gram-positive and those that do not retain it are Gram-negative

Gram method, Gram stain, Gram's procedure, Gram's stain

staining - (histology) the use of a dye to color specimens for microscopic study

Translations

Gram's method

n. método de Gram, proceso de coloración de bacterias para identificarlas en un análisis.

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References in periodicals archive ?

Organisms stained by Gram's method can be divided into groups that have taxonomic significance and that guide the physician in choosing appropriate antibiotic treatment.

4] Mycobacteria, in general, are not stained by Gram's method, and Legionella spp.