gram's staining

gram's staining
окраска по граму

English-Russian small dictionary of medicine. . 2015.

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  • Gram staining — (or Gram s method) is an empirical method of differentiating bacterial species into two large groups (Gram positive and Gram negative) based on the chemical and physical properties of their cell walls.cite book | last = Bergey | first = David H.… …   Wikipedia

  • Staining — is an auxiliary technique used in microscopy to enhance contrast in the microscopic image.In biochemistry it involves adding a class specific (DNA, proteins, lipids, carbohydrates) dye to a substrate to qualify or quantify the presence of a… …   Wikipedia

  • Gram-positive bacteria — Gram positive bacteria, stained purple, of both the bacillus (“rod shaped”) and coccus (spherical) forms.  A few Gram negative bacteria are also present, stained pink.  Numbered ticks are eleven (11) microns apart. Gram positive… …   Wikipedia

  • Gram-negative — bacteria lose the crystal violet stain (and take the color of the red counterstain) in Gram s method of staining. This is characteristic of bacteria that have a cell wall composed of a thin layer of a particular substance (called peptidoglycan).… …   Medical dictionary

  • Gram's stain — or Gram stain gram n 1) a method for the differential staining of bacteria that involves fixing the bacterial cells to a slide and staining usu. with the basic dye crystal violet, treating with an iodine solution to fix the dye, washing with… …   Medical dictionary

  • Gram-positive — bacteria retain the color of the crystal violet stain in the Gram stain. This is characteristic of bacteria that have a cell wall composed of a thick layer of a particular substance (called peptidologlycan). The Gram positive bacteria include… …   Medical dictionary

  • Gram (disambiguation) — Gram is a unit of measurement of mass. Otherwise, gram may refer to: gram, the Greek based suffix meaning drawing or representation. Contents 1 Places 2 People …   Wikipedia

  • gram stain — Staining technique for the initial identification of bacteria, devised in 1884 by the Danish physician Hans Christian Gram (1853–1938). The stain reveals basic differences in the biochemical and structural properties of a living cell. A slide… …   Universalium

  • Gram's solution — gramz n a watery solution of iodine and the iodide of potassium used in staining bacteria by Gram s stain Gram gräm Hans Christian Joachim (1853 1938) Danish physician. Gram introduced his method for the differential staining of bacteria in 1884 …   Medical dictionary

  • Gram method — Gram stain an empirical staining procedure in which microorganisms are stained with crystal violet, treated with 1:15 dilution of strong iodine solution, decolorized with ethanol or ethanol acetone, and counterstained with a contrasting dye,… …   Medical dictionary

  • gram-variable — gram vari·able gram ver ē ə bəl, var adj staining irregularly or inconsistently by Gram s stain * * * gram var·i·a·ble (gram varґe ə bəl) appearing to be a mixture of gram positive and gram negative organisms, said of gram positive… …   Medical dictionary

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