''Candidatus'' Rhabdochlamydia is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

intracellular bacteria Intracellular bacteria are bacteria, which have the capability to enter and survive within the cells of the host organism. Many of them are capable of growth extracellularly, but some of them can grow and reproduce only intracellularly (obligate i ...

and the sole genus in the family ''Candidatus'' Rhabdochlamydiaceae. As a ''

Candidatus In prokaryote nomenclature, ''Candidatus'' (Latin for candidate of Roman office) is used to name prokaryotic phyla that are well characterized but yet-uncultured. Contemporary sequencing approaches, such as 16S sequencing or metagenomics, provide m ...

'' taxon, no-one has yet managed to culture them ''

in vitro ''In vitro'' (meaning in glass, or ''in the glass'') studies are performed with microorganisms, cells, or biological molecules outside their normal biological context. Colloquially called "test-tube experiments", these studies in biology an ...

'' for deposition in a culture collection. Two ''Rhabdochlamydia'' species have been characterized and validly proposed. Their

ribosomal RNA Ribosomal ribonucleic acid (rRNA) is a type of non-coding RNA which is the primary component of ribosomes, essential to all cells. rRNA is a ribozyme which carries out protein synthesis in ribosomes. Ribosomal RNA is transcribed from ribosomal ...

genes are 96.3% identical. These gene sequences are 82%–87% identical to those of most

Chlamydiales The bacterial order Chlamydiales includes only obligately intracellular bacteria that have a chlamydia-like developmental cycle of replication and at least 80% 16S rRNA or 23S rRNA gene sequence identity with other members of Chlamydiales. Chlam ...

. These data and analysis of ''Rhabdochlamydia'' morphology indicates that these species belong to the bacterial order

Species

The genus consists of the following two valid species: * ''Candidatus'' Rhabdochlamydia crassificans Kostanjšek et al. 2004 – detected in the cockroach ''

Blatta orientalis __NOTOC__ The oriental cockroach (''Blatta orientalis''), also known as the waterbug (as they live in damp areas) or black cockroaches (as their bodies are mostly dark), is a large species of cockroach, adult males being and adult females being ...

'' * ''Candidatus'' Rhabdochlamydia porcellionis Corsaro et al. 2006 – detected in

hepatopancreas The hepatopancreas, digestive gland or midgut gland is an organ of the digestive tract of arthropods and molluscs. It provides the functions which in mammals are provided separately by the liver and pancreas, including the production of digestive ...

of the

woodlouse A woodlouse (plural woodlice) is an isopod crustacean from the polyphyleticThe current consensus is that Oniscidea is actually triphyletic suborder Oniscidea within the order Isopoda. They get their name from often being found in old wood. ...

Porcellio scaber ''Porcellio scaber'' (otherwise known as the common rough woodlouse or simply rough woodlouse), is a species of woodlouse native to Europe but with a cosmopolitan distribution. They are often found in large numbers in most regions, with many spe ...

References

{{Taxonbar, from=Q7319973 Chlamydiota Bacteria genera Candidatus taxa

Species

See also

References