Size of this preview: 800 × 485 pixels. Other resolutions: 320 × 194 pixels | 640 × 388 pixels | 1,024 × 620 pixels | 1,600 × 969 pixels.
Original file (1,600 × 969 pixels, file size: 728 KB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: Streptococcus pneumoniae isolated from blood culture bottle (A) and nasal swab (B). On sheep blood agar, pneumococci grow as 1-2 mm glistening colonies surrounded by a zone of alpha-hemolysis (A, B, C, D, E, F). Another characteristic feature of S.pneumoniae is the central navel-like depression of the colonies that is caused by the pneumococcal autolysin (G). Due to the production of capsular polysaccharide, colonies appear moist. Colonies may be large and mucoid if large amounts of polysaccharide are made (B, C, I). Most isolates are optochin susceptible (H). In blood culture specimens, S.pneumoniae tends to form chains of varying lengths, similar to other streptococci. |
| Date | |
| Source | Own work |
| Author | HansN. |
Thanks to Dr. Jana Polaskova for her support.
Summary
| Description |
Čeština: S.pneumoniae na krevním agaru. Kolonie jsou obklopeny zónou alfa-hemolýzy (A-F). Charakteristický je tvar kolonií řady izolátů se zvýšeným okrajem a propadlým středem v důsledku jejich autolýzy (G). Na rozdíl od ostatních alfa-hemolytických streptokoků jsou pneumokoky většinou citlivé k optochinu (H). Virulentní kmeny často produkují ve zvýšené míře polysacharidové pouzdro a tyto kolonie pak mají na krevním agaru typický mukózní charkter (B, C, I). V hemokultuře tvoří řetízky, jen obtížně odlišitelné od ostatních streptokoků. Někdy mohou mít zahrocený, lancetovitý tvar buněk (J). |
| Date | |
| Source | Own work |
| Author | HansN. |
Díky MUDr. J.Poláškové za její podporu.
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:33, 27 July 2024 | | 1,600 × 969 (728 KB) | New HanseN. | Uploaded own work with UploadWizard |
File usage
The following page uses this file:
Global file usage
The following other wikis use this file:
- Usage on cs.wikipedia.org
