Selective and differential media for identifying microorganisms pdf

For example, if a microorganism is resistant to a certain antibiotic, such as ampicillin or tetracycline, then that antibiotic can be added to the medium in order to prevent other cells, which do not possess the resistance, from growing. Selective media for different microorganisms labmonk. Selective media are the culture media designed for the growth of a selected organism while inhibiting the growth of other microorganisms. Abstract selective and differential media were designed for each species of pityro sporum. The resources below are used to supplement an actual 16week college cell biology course.

This video part 1 of 2 describes inoculation of six different selective and differential agars with different bacterial species. Selective media allow certain types of organisms to grow, and inhibit. Selective and differential media flashcards quizlet. Selective media use specific growth characteristics of a microorganism to selectively grow that microorganism in the growth medium. Differential media are the culture media designed to distinguish microorganisms from one another by visible growth characteristics. An example of a selective medium is macconkey agar. Selective growth media for differentiation and detection of escherichia coli and other coliforms by. Selective media are purposively used for isolation and identification of some particular kind of microorganisms, because such media allow some specific types of microorganisms to grow and inhibit others. We show how to distinguish different bacteria based on. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Media that inhibit the growth of unwanted microorganisms and support the growth of the organism of interest by supplying nutrients and reducing competition are called selective media. Identify and describe culture media for the growth of bacteria, including examples of allpurpose media, enriched, selective, differential, defined, and enrichment.

Mannitol salt agar is a selective media, and macconkey agar is a. Bacteria may be identified by studying the colony character, b mixed. Selective and differential media for isolation and tentative. Selective and differential media biology libretexts. Chapter 3 methods of culturing microorganisms five basic techniques.

Selective and differential media is extremely useful when examining mixed bacterial cultures since it provides. Selective media allows for the growth of specific organisms, while differential media is used to distinguish one organism from another. Enriched, selective, and differential media youtube. Blood agar bap is another type of differential medium. Selective media are used for the growth of only selected microorganisms. Selective media allow certain types of organisms to grow, and inhibit the. A selective and differential medium for enteric gram. Start studying selective and differential media microbiology. It will display a color change in the presence of bacteria that can lyse break down the red blood cells in the medium.

Difference between selective and differential media. Mac is a selective differential media selecting for gram bacteria, then differentiating between lactose fermentation and no fermenting organism. Selective growth media for differentiation and detection. The main difference between selective and differential media is that selective media are used to isolate a particular strain of microorganisms whereas differential media are used to identify and differentiate a closelyrelated group of microorganisms. Use of selective and differential media for bacterial. Selective and differential medium for the primary isolation of. Selective and differential media microbiology flashcards.