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Mannitol Salt Agar is selective for staphylococci as the high salt (sodium chloride) levels prohibit most other bacteria from surviving and it is differential as Staphylococci ferment mannitol, producing acid, lowering the pH and turning the media yellow. The development of yellow media presumes the bacteria to be pathogenic Staphylococcus (usually S. aureus). From A Photographic Atlas for the Microbiology Laboratory by Leboffe and Pierce.
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Why is Sabouraud's dextrose agar a selective medium?
it only allows fungi to grow on the medium, and nothing else. so it selects for fungi.
How could the use of a medium which is both selective and differential be justified?
The use of a medium that is both selective and differential can be justified in a few ways. They allowe the growth of organisms that can be of interest. The media can also be quite useful diagnostically in medical settings.
Why must use starch casein nitrate agar and what is the starch casein agar properties?
Because it is a selective medium
Is bacillus subtilis positive for glucose fermentation?
B. subtilis does not ferment glucose nor lactose
What is the media selective for fungal organism?
potato dextrose agar medium is used for fungal growth
Does s. epidermidis grow on msa?
Streptococcus cannot grow on MSA plates because MSA is a selective and differential media. It is selective because only certain microorganisms can grow on it due to its high NaCl content, in which this concentration - near 10% in MSA - has an inhibitory effect on most bacteria, such as Streptococci.
What is MSA agar?
Mannitol salt agar or MSA is a commonly used growth medium in microbiology. It contains a high concentration (~7.5%-10%) of salt (NaCl), making it selective for Staphylococci (and Micrococcaceae) since this level of NaCl is inhibitory to most other bacteria.
What is the selective property of the Snyder medium?
An Acidic pH
Is Mannitol salt agar a selective or a differential medium?
Both
Is CSS the same as MSA?
What is msa
What is the market cap for MSA Safety Incorporporated MSA?
As of July 2014, the market cap for MSA Safety Incorporporated (MSA) is $2,138,119,585.75.
When a substance is added to solid medium which inhibits growth of unwanted bacteria but permits the growth of wanted bacteria the medium is known as?
selective medium
What are selective media for aspergillus?
Peptone glucose agar (PGA) medium
What is the symbol for MSA Safety Incorporporated in the NYSE?
The symbol for MSA Safety Incorporporated in the NYSE is: MSA.
Which ingredient in mannitol salt agar supplies carbon?
mannitol is a type of sugar, so it supplies the carbon in the MSA medium
Why is Sabouraud's dextrose agar a selective medium?
it only allows fungi to grow on the medium, and nothing else. so it selects for fungi.
How could the use of a medium which is both selective and differential be justified?
The use of a medium that is both selective and differential can be justified in a few ways. They allowe the growth of organisms that can be of interest. The media can also be quite useful diagnostically in medical settings.
