gram stain in English

noun
1
a staining technique for the preliminary identification of bacteria, in which a violet dye is applied, followed by a decolorizing agent and then a red dye. The cell walls of certain bacteria (denoted Gram-positive ) retain the first dye and appear violet, while those that lose it (denoted Gram-negative ) appear red. Also called Gram's method.
The use of standard biochemical testing rather than commercial systems has been recommended for identification of Gram-negative nonfermenting bacteria.

Use "gram stain" in a sentence

Below are sample sentences containing the word "gram stain" from the English Dictionary. We can refer to these sentence patterns for sentences in case of finding sample sentences with the word "gram stain", or refer to the context using the word "gram stain" in the English Dictionary.

1. They have no cell wall and therefore do not Gram stain.

2. No organisms were seen microscopically and cultures and Gram stain were negative.

3. Acetobacter is a Gram-negative bacterium, which means it does not react to the Gram stain test

4. Gram stain, oxidase, catalase, growth at 25°C, nalidixic acid and cephalothin resistance, hippurate, and indoxyl acetate hydrolysis.

5. Methods: 2038 cases of vaginal secretions of patients with suspected vaginitis were collected and detected by normal saline smear method and Gram stain microscopy.

6. Genus and Species: Acetobacter aceti Domain: Prokaryote Optimal Growth Medium: Mannitol Special Agar Optimal Growth Temperature: 25° C Package: Tube Biosafety Level: 1 Gram Stain: Gram-Negative Shape: Bacillus (rod-shaped)

7. When exposed to a dye called a gram stain, gram positive Bacteria trap the dye due to the structure of their walls, while gram negative Bacteria release the dye readily, because their cell wall is thin.

8. 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) Peptone (0.1%) Water diluent (PW) 2% aqueous sodium citrate (tempered to 450C) (for cheese samples only) Nutrient Agar (NA) Tryptic Soy Agar (TSA) Levine's Eosin Methylene Blue (L-EMB) agar or Endo agar Brilliant Green Lactose 2% Bile (BGLB) broth Lauryl Sulfate Tryptose (LST) broth Violet Red Bile (VRBA) Agar Double Strength Violet Red Bile Agar Stomacher, blender or equivalent pH meter or paper capable of distinguishing to 0.3 to 0.5 pH units within a range of 5.0 to 8.0. 1N HCl and 1N NaOH Gram stain reagents Light microscope Positive and negative control cultures, ATCC or equivalent (see Table II) Incubator capable of maintaining 35EC