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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Chlamydia pneumoniae
Category: Primarily of interest in human medicin
Etymology: Genus name: cloac loving.
Species epithet: ofpneumonia.
Significance:  [Important]   
Alternative Species Name(s):Chlamydia pneumoniae
Taxonomy:
Phylum
Chlamydiota
Class
Chlamydiia
Order
Chlamydiales
Family
Chlamydiaceae 
Genus
Chlamydia
Type Strain: ATCC VR-2282
Macromorphology (smell): Does only grow intracellularly and can, therfore, not be cultivated on artificial substrates.
Micromorphology: infectious elementary bodies (0.2-0.3 µm).
Within the host cell: non-infectious reticulate bodies (0.8-1.0 µm). C. pneumoniae is non-motile.
Gram +/Gram -:G-, difficult to gram stain
Metabolism: Aerobic, but members of the family Chlamydiaceae have only limited resources to to synthesize their own ATP. Therefore, they can ingest ATP from the host cell.
Catalase/Oxidase:
Spec. Char.:
Disease:Humans: respiratory infection.
Horse: respiratory infection.
Koalas: eye infection.
Hosts: Humans (and horse and koala)
Clinical Picture:
Genome Sequence:
Acc-noStrainSize (bp)Genome
AE009440 TW-183T 1 225 935  

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
D85718  1479 

Taxonomy/phylogeny:
 
Species within the family Chlamydiaceae were previously (1999) divided into two genera Chlamydia and Chlamydophila. However, the differences between these two genera were not that great and many research groups have not accepted this division. Therefore, the genus Chlamydophila has been returned (2015) to the genus Chlamydia. See the references below.
Comment:Members of the family Chlamydiaceae are obligately intracellular. The cell envelope contains cystein rich proteins and only a small amount of peptidoglycans.
Reference(s): No. 68, 140, 177
Links: The comprehensive reference and education wiki on Chlamydia and the Chlamydiales, Klamydia-föreläsning
Updated:2023-03-15

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