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  2. TSI slant - Wikipedia

    en.wikipedia.org/wiki/TSI_slant

    The TSI slant is a test tube that contains agar, a pH-sensitive dye , 1% lactose, 1% sucrose, 0.1% glucose, [2] and sodium thiosulfate and ferrous sulfate or ferrous ammonium sulfate. All of these ingredients are mixed together, heated to sterility, and allowed to solidify in the test tube at a slanted angle.

  3. Citrobacter freundii - Wikipedia

    en.wikipedia.org/wiki/Citrobacter_freundii

    Citrobacter freundii is a species of facultative anaerobic Gram-negative bacteria of the family Enterobacteriaceae which currently consists of 13 recognized species. These bacteria have a rod shape with a typical length of 1–5 μm. Most C. freundii cells have several flagella used for locomotion, although some non-motile taxa do not.

  4. IMViC - Wikipedia

    en.wikipedia.org/wiki/IMViC

    "I" is for indole test; "M" is for methyl red test; "V" is for Voges-Proskauer test, and "C" is for citrate test. The lower case "i" is merely for "in" as the Citrate test requires coliform samples to be placed "in Citrate". These tests are useful in distinguishing members of Enterobacteriaceae. IMViC Results

  5. Citrobacter - Wikipedia

    en.wikipedia.org/wiki/Citrobacter

    The species C. amalonaticus, C. koseri, and C. freundii can use citrate as a sole carbon source. Citrobacter species are differentiated by their ability to convert tryptophan to indole (C. koseri is the only citrobacter to be commonly indole-positive), ferment lactose (C. koseri is a lactose fermentor), and use malonate.

  6. Diagnostic microbiology - Wikipedia

    en.wikipedia.org/wiki/Diagnostic_Microbiology

    Diagnostic microbiology is the study of microbial identification. Since the discovery of the germ theory of disease , scientists have been finding ways to harvest specific organisms. Using methods such as differential media or genome sequencing , physicians and scientists can observe novel functions in organisms for more effective and accurate ...

  7. Enterobacteriaceae - Wikipedia

    en.wikipedia.org/wiki/Enterobacteriaceae

    Enterobacteriaceae is a large family of Gram-negative bacteria.It includes over 30 genera and more than 100 species. Its classification above the level of family is still a subject of debate, but one classification places it in the order Enterobacterales of the class Gammaproteobacteria in the phylum Pseudomonadota.

  8. Eosin methylene blue - Wikipedia

    en.wikipedia.org/wiki/Eosin_methylene_blue

    Some species of Citrobacter and Enterobacter will also react this way to EMB. [5] This medium has been specifically designed to discourage the growth of Gram-positive bacteria. [6] EMB contains the following ingredients: peptone, lactose, dipotassium phosphate, eosin Y (dye), methylene blue (dye), and agar.

  9. Antibiotic sensitivity testing - Wikipedia

    en.wikipedia.org/wiki/Antibiotic_sensitivity_testing

    The results were difficult to interpret and not reliable, because of inaccurate results that were not standardised between laboratories. [25] Dilution has been used as a method to grow and identify bacteria since the 1870s, and as a method of testing the susceptibility of bacteria to antibiotics since 1929, also by Alexander Fleming. [25]