Orientia
Encyclopedia
Orientia is a genus
of bacteria
in family
Rickettsiaceae
.
They are obligate
intracellular
gram negative bacteria found in insects and mammals. They are spread through the bites or feces of infected insects.
One species is Orientia tsutsugamushi
.
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of bacteria
Bacteria
Bacteria are a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals...
in family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
Rickettsiaceae
Rickettsiaceae
The Rickettsiaceae are a family of bacteria, including most notably the genus Rickettsia.Most human pathogens are in genus Rickettsia. They spend part of their life cycle in the bodies of arthropods such as ticks or lice, and are then transmitted to humans or other mammals by the bite of the...
.
They are obligate
Obligate
Obligate means "by necessity" and is used mainly in biology in phrases such as:* Obligate aerobe, an organism that cannot survive without oxygen* Obligate anaerobe, an organism that cannot survive in the presence of oxygen...
intracellular
Intracellular
Not to be confused with intercellular, meaning "between cells".In cell biology, molecular biology and related fields, the word intracellular means "inside the cell".It is used in contrast to extracellular...
gram negative bacteria found in insects and mammals. They are spread through the bites or feces of infected insects.
One species is Orientia tsutsugamushi
Orientia tsutsugamushi
Orientia tsutsugamushi is the causative organism of scrub typhus, and the natural vector and reservoir is probably trombiculid mites ....
.
Species
- Orientia tsutsugamushi (Hayashi 1920), previously RickettsiaRickettsiaRickettsia is a genus of non-motile, Gram-negative, non-sporeforming, highly pleomorphic bacteria that can present as cocci , rods or thread-like . Being obligate intracellular parasites, the Rickettsia survival depends on entry, growth, and replication within the cytoplasm of eukaryotic host cells...
tsutsugamushi, Scrub typhusScrub typhusScrub typhus or Bush typhus is a form of typhus caused by Orientia tsutsugamushi first isolated and identified in 1930 in Japan., accessdate: 16 October 2011...
.