Dictionary » G » Grams stain

Grams stain

Grams stain

(Science: microbiology, technique) a method for differential staining of bacteria; smears are fixed by flaming, stained in a solution of crystal violet, treated with iodine solution, rinsed, decolorised, and then counterstained with safranin o.

gram-positive organisms stain purple black and gram-negative organisms stain pink; useful in bacterial taxonomy and identification, and also in indicating fundamental differences in cell wall structure.


Please contribute to this project, if you have more information about this term feel free to edit this page



This page was last modified 21:16, 3 October 2005. This page has been accessed 1,981 times. 
What links here | Related changes | Permanent link