|Category:||Primarily of interest in human medicin|
|Etymology:||Genus name: a cloac.|
Species epithet: of trachoma.
|Type Strain:||A/Har-13 (Trachoma type A strain HAR-13) = ATCC VR-571B.|
|Macromorphology (smell):||Does only grow intracellularly and can, therfore, not be cultivated on artificial substrates.|
|Micromorphology:||Outside the host cell: infectious elementary bodies (0.2-0.3 µm).
Within the host cell: non-infectious reticulate bodies (0.8-1.0 µm). C. trachomatis 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.|
|Disease:||Arthritis, conjunctivitis, pneumonia. genital infections (STD), trachoma
|16S rRNA Seq.:|
||Five species have been described within genus Chlamydia and six species have been described within genus Chlamydophila. Species within the family Chlamydiaceae form two relatively distinct clusters and have, therefore, been divided into two genera Chlamydia and Chlamydophila. However, some research groups have not accepted this, but include all species within genus Chlamydia.|
|Comment:||Strictly intracellular. The cell envelope contains cystein rich proteins and only a small amount of peptidoglycans.|
|Links:||The comprehensive reference and education wiki on Chlamydia and the Chlamydiales, Klamydia-föreläsning|
|New families introduced within the order Enterobacterales|
The order Enterobacterales (formerly called Enterobacteriales) previously consisted of bacteria with different properties and phylogenetically, these bacteria were far apart. In order for the taxonomy to be more in line with phylogeny, some of these bacteria have, therefore, been sorted into 6 new families.Published 2022-04-13. Read more...