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A strain is a genetic variant or subtype of a microorganism (e.g., a virus, bacterium or fungus). For example, a "flu strain" is a certain biological form of the influenza or "flu" virus. These flu strains are characterized by their differing isoforms of surface proteins.
Bacterial taxonomy is the classification of strains within the domain Bacteria into hierarchies of similarity. This classification is similar to that of plants, mammals, and other taxonomies. However, biologists specializing in different areas have developed differing taxonomic conventions over time.
Bacteria (/ b æ k ˈ t ɪər i ə / ⓘ ... Solid growth media, such as agar plates, are used to isolate pure cultures of a bacterial strain. However, liquid growth ...
There has been evidence that the strain of bacteria could make a difference in how sick patients become. An earlier study linked infections with a certain strain, OspC type A, with greater ...
Methicillin-resistant Staphylococcus aureus (MRSA) is a group of gram-positive bacteria that are genetically distinct from other strains of Staphylococcus aureus. MRSA is responsible for several difficult-to-treat infections in humans.
Stool cultures revealed that all three were infected with Shigella sonnei, a strain of Shigella bacteria that is resistant to five of the antibiotic classes most commonly prescribed for such ...
Since 2001, when a new bacterial or archaeal species is described, a type strain must be designated. [11] The type strain is a living culture to which the scientific name of that organism is formally attached.
Escherichia coli BL21(DE3) is a commonly used protein production strain. This strain combines several features that allow for excessive expression of heterologous proteins. It is derived from the B lineage of E. coli. [1]