File:Staphylococcus aureus growth on 5% sheep blood agar after a day of incubation.jpg
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Summary[edit]
| Description |
English: After incubating Staphylococcus aureus on 5% sheep blood agar for a day, you would typically observe characteristic colony growth and features associated with this bacterium. Here's what you might see:Colony Morphology-Staphylococcus aureus colonies on 5% sheep blood agar are often round, convex, and have a raised appearance.
The colonies can vary in size but are typically medium-sized. They have a characteristic golden-yellow to golden-orange color, often described as "buttery" or "creamy." Opacity-Staphylococcus aureus colonies are opaque, meaning they are not transparent and do not allow light to pass through. Hemolysis-Staphylococcus aureus is known for its ability to exhibit beta-hemolysis on blood agar. This means that the bacterium produces hemolysins that completely lyse (break down) the red blood cells in the agar around the colony. As a result, there is a clear zone or "halo" surrounding each Staphylococcus aureus colony due to the lysis of red blood cells. This clear zone contrasts with the opaque appearance of the agar and is a distinguishing feature. Texture-Staphylococcus aureus colonies have a smooth and glistening appearance. They do not typically exhibit rough or roughened textures. It's important to note that these characteristics are typical for Staphylococcus aureus colonies grown on blood agar, and they are used in the preliminary identification of the bacterium. Further biochemical tests and molecular methods may be required for definitive identification and to determine specific strain characteristics. |
| Date | |
| Source | Own work |
| Author | Ajay Kumar Chaurasiya |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:31, 2 September 2023 | | 4,160 × 2,340 (3.08 MB) | Ajay Kumar Chaurasiya (talk | contribs) | Uploaded own work with UploadWizard |
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