Stenophoricae
Superfamily of single-celled organisms
From Wikipedia, the free encyclopedia
Stenophoricae is a superfamily of parasites of the phylum Apicomplexa.
| Stenophoricae | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Clade: | Sar |
| Clade: | Alveolata |
| Phylum: | Apicomplexa |
| Class: | Conoidasida |
| Order: | Eugregarinorida |
| Suborder: | Septatorina |
| Superfamily: | Stenophoricae |
| Families | |
|
Acutidae | |
Taxonomy
There are eleven families in this taxon.
History
Description
Species in this superfamily infect only a single host during their life cycle.
The trophozoites are solitary and may develop either intracellularly or extracellularly.
The epimerite varies in its structure between species.
The gametocysts may or may not have sporoducts. They have a hyaline epicyst.
Oocysts are released in a variety of ways depending on the species:
- Dehiscence of the gametocyst and release of single oocysts en masse
- Release of oocysts in polyete chains from the gametocyst
- Rupture of a gametocyst valve and release of oocysts in monete chains
- Expulsion of isolated oocysts en masse
Differential diagnosis
This superfamily is distinguished by the Porosporidae by only having one host in the life cycle.
It is distinguished from the Gregarinicae by the lack of formation of association between the parasites before gametocyst formation. Members of the Gregarinicae typically form associations before they mature. This occurs some time before the onset of syzygy.
