Examples of differential media in the following topics:
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- Selective media allows for the growth of specific organisms, while differential media is used to distinguish one organism from another.
- Two types of media with similar implying names but very different functions, referred to as selective and differential media, are defined as follows.
- Differential media or indicator media distinguish one microorganism type from another growing on the same media.
- Examples of differential media include:
- MacConkey (MCK), which is differential for lactose fermentationmannitol salt agar (MSA), which is differential for mannitol fermentation.
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- Culture media can be used to differentiate between different kinds of bacteria by detecting acid or gas production.
- Differential media, also known as indicator media, distinguish one microorganism type from another growing on the same media.
- Differential media are used for the detection of microorganisms and by molecular biologists to detect recombinant strains of bacteria.
- When cultured on an EMB (eosin methylene blue) plate, a positive result for E. coli is metallic green colonies on a dark purple media.
- This raises the pH of the medium, allowing the O157:H7 strain to be differentiated from other E. coli strains through the action of the pH indicator in the medium.
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- In most cases, specimens are also inoculated into differential media that define such characteristics as fermentation patters (mannitol salt and MacConkey agar) and as reactions in blood (blood agar).
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- Culture media is the food used to grow and control microbes.
- These are the most common growth media, although specialized media are sometimes required for microorganism and cell culture growth.
- This is an important distinction between growth media types.
- Undefined media are sometimes chosen based on price and sometimes by necessity - some microorganisms have never been cultured on defined media.
- Differential media - Also known as indicator media, are used to distinguish one microorganism type from another growing on the same media.
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- In defined media all the chemical compounds are known, while undefined media has partially unknown chemical constituents.
- There are many types of culture media, which is food that microbes can live on.
- Two major sub types of media are complex and synthetic medias, known as undefined and defined media.
- Undefined media are sometimes chosen based on price and sometimes by necessity - some microorganisms have never been cultured on defined media.A defined medium (also known as chemically defined medium or synthetic medium) is a medium in which all the chemicals used are known, no yeast, animal, or plant tissue is present.
- The term 'chemically defined media' is often misused in the literature to refer to serum albumin-containing media.
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- The most common growth media for microorganisms are nutrient broths and agar plates; specialized media are required for some microorganisms.
- An important distinction between growth media types is that of defined versus undefined media.
- Differential/indicator media distinguish one microorganism type from another growing on the same media.
- The agar triple-sugar iron (TSI) is one of the culture media used for the differentiation of most enterobacteria.
- The agar triple-sugar iron is one of the culture media used for the differentiation of most enterobacteria.
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- Otitis media, or earache, is the inflammation of the middle ear and is often due to bacterial infections.
- Otitis media is inflammation of the middle ear .
- Though painful, otitis media is not threatening and usually heals on its own within 2–6 weeks.
- Typically, acute otitis media follows a cold.
- Otitis media is most commonly caused by infection with viral, bacterial, or fungal pathogens.
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- Some filamentous colonies show the ability to differentiate into several different cell types, including:
- Cyanobacteria cultured in specific media.
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- Mammalian stem cells differentiate into several kinds of blood cell within the bone marrow.
- During this process, all lymphocytes originate from a common lymphoid progenitor before differentiating into their distinct lymphocyte types.
- B and T cells) differentiate further after exposure to an antigen; they form effector and memory lymphocytes.
- Mammalian stem cells differentiate into several kinds of blood cell within the bone marrow.
- All lymphocytes originate during this process from a common lymphoid progenitor before differentiating into their distinct lymphocyte types.
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- MICs can be determined on plates of solid growth medium (called agar, shown in the "Kirby-Bauer Disk Susceptibility Test" atom) or broth dilution methods (in liquid growth media, shown in ) after a pure culture is isolated.
- For example, to identify the MIC via broth dilution, identical doses of bacteria are cultured in wells of liquid media containing progressively lower concentrations of the drug.
- To identify the lowest concentration required for a given antibiotic to inhibit bacterial growth, an identical amount of bacteria is introduced into wells of liquid media containing progressively lower concentrations of the drug.
- Because bacterial growth made the media in well E5 cloudy and the media in well E4 is indistinguishable from clear media, this indicates that the minimum inhibitory concentration is between the drug concentrations in wells E4 and E5.