Chlamydiaceae


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Chlamydiaceae

 [klah-mid″e-a´se-e]
a family of bacteria containing a single genus, Chlamydia.

Chla·myd·i·a·ce·ae

(kla-mid'ē-ā'sē-ē),
A family of the order Chlamydiales (formerly included in the order Rickettsiales) that includes the agents of the psittacosis-lymphogranuloma-trachoma group. The family contains small, coccoid, gram-negative bacteria that resemble rickettsiae but that differ from them significantly by possessing a unique, obligately intracellular developmental cycle; intracytoplasmic microcolonies give rise to infectious forms by division. The classification of these organisms previously was in a state of flux, but they are now placed in a single genus, Chlamydia, the type genus of the family.

Chla·myd·i·a·ce·ae

(klă-mid'ē-ā'shē-ē)
A family of the order Chlamydiales (formerly included in the order Rickettsiales) that includes the agents of the psittacosis-lymphogranuloma-trachoma group. The family contains small, coccoid, gram-negative bacteria that resemble rickettsiae but differ from them by possessing a unique, obligately intracellular developmental cycle. Intracytoplasmic microcolonies give rise to infectious forms by division.
References in periodicals archive ?
All strains of Chlamydiaceae share an identical genus-specific antigen in the lipopolysaccharide of their cell wall but differ in the composition of other cell-wall antigens, which accounts for the different serotypes.
* Chlamydiaceae antigen (fluorescent antibody) in feces, a cloacal swab specimen, or respiratory tract or ocular exudates.
O isolamento da bacteria e o metodo recomendado para o diagnostico de microrganismos da Familia Chlamydiaceae. Em se tratando de uma bacteria intracelular obrigatoria, necessita de cultura celular.
Chlamydiaceae in cattle: commensals, trigger organisms, or pathogens?
Although some Chlamydiaceae screening tests and strain-typing methods exist, they are expensive, are time-consuming, require trained personnel, and are available only in specialized laboratories; most do not discriminate among species of Chlamydiaceae.
Transmission electron microscopic examination of the liver of a yellow spotted newt revealed intracellular inclusions containing particles matching the morphology of reticulate or elementary bodies of Chlamydiaceae (online Technical Appendix, wwwnc.cdc.gov/EID/pdfs/111137-Techapp.pdf).
To test the placental specimens, we used a commercial Chlamydiaceae family-specific monoclonal antibody directed against the chlamydial lipopolysaccharide (clone AC1-P; Progen, Heidelberg, Germany) at a dilution of 1:200.
Despite the short sequence length of the 15 samples, the tree was well resolved with the Chlamydiales sequences and formed 3 clusters (Chlamydiaceae, Rhabdochlamydiaceae/Simkaniaceae, and Parachlamydiaceae/Waddliaceae/Criblamydiaceae) (Figure).
trachomatis MLST schemes, we used complete genomic comparisons of 7 strains from 4 species within the family Chlamydiaceae to identify conserved candidate housekeeping genes across the genomes.