Biology:Urospora (alveolate)

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Short description: Genus of intracellular parasites

Urospora
Scientific classification e
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Clade: Alveolata
Phylum: Apicomplexa
Class: Conoidasida
Order: Eugregarinorida
Family: Urosporidae
Genus: Urospora
Schneider, 1895
Synonyms[1]

Cystobia Mingazzini, 1891 in part Pachysoma Mingazzini, 1891 Syncystis Cuénot, 1891

Urospora is a genus of apicomplexan gregarines.[2][3][1]

Characteristics

Urospora is a genus of apicomplexans, protists that behave as intracellular parasites. Species of this genus are monocystid gregarines, found in the body cavity or tissues of their hosts: echinoderms, annelids, nemertines and mollusks. They present lateral or frontal syzygies. Their oocysts are heteropolar, with a thin appendage at one end and a transparent conical funnel at the other end.[2] They reproduce through anisogametes, unequal gametes, liberated through the dehiscence of gametocysts by a simple rupture. The oocysts have a well-differentiated wall known as the 'epispore', 8 sporozoites. Each oocyst has an anterior neck and a marked posterior prolongation.[1]

Species and hosts

Urospora contains the following species, listed next to their host and the tissue they parasitize:[1]

  • U. chiridotae (Dogiel 1906 as Cystobia) Goodrich 1925 – blood vessels of sea cucumber Chiridota laevis.
  • U. echinocardii Pixell-Goodrich 1915 – coelom of sea urchins Echinocardium and Spatangus.
  • U. grassei (Changeux 1961 as Cystobia) Levine 1977 – hemal sinus of sea cucumbers Holothuria tubulosa and H. stellati.
  • U. hardyi Goodrich 1950 – coelom of sipunculid worm Sipunculus nudus.
  • U. holothuriae (Schneider 1858 as Gregarina) Trégouboff 1918 – blood vessels, coelom and intestine of sea cucumbers Holothuria tubulosa and H. stellati.
  • U. intestinalis Bogolepova 1953 – intestine of sea cucumber Cucumaria japonica.
  • U. lagidis de St. Joseph 1898 – coelom of polychaete Lagis koreni.
  • U. legeri Goodrich 1950 – coelom of sipunculid worm Sipunculus nudus.
  • U. longicauda Mingazzini 1891 – unknown location within polychaete Cirratulus filigerus.
  • U. longissima (Caullery & Mesnil 1898 as Gonospora) Schrével 1965 – coelom of polychaete Dodecaria caulleryi.
  • U. muelleri (Cuénot 1891 as Syncystis) Cuénot 1892 – coelom of sea cucumber Synapta digitata.
  • U. nemertis (von Kölliker 1845 as Gregarina) Schneider 1875 – intestine of ribbon worm Nemertes delineatus.
  • U. neopolitana Pixell-Goodrich 1915 – coelom of sea urchin Echinocardium cordatum.
  • U. ovalis Dogiel 1910 – coelom of sea urchin Echinocardium cordatum[1] and polychaete Travisia forbesii.[2]
  • U. pulmonalis Bogolepova 1953 – gills of sea cucumber Cucumaria japonica.
  • U. rhyacodrili Gabriel 1929 – seminal vesicles and coelom of oligochaetes Rhyacodrilus coccineus and Tubifex albicola.
  • U. schneideri (Mingazzini 1891 as Cystobia) Levine 1977 – blood vessels and coelom of sea cucumbers Holothuria polii, H. impatiens, H. tubulosa and H. stellati.
  • U. sipunculi (von Kölliker 1845 as Gregarina) Léger 1892 – coelom of sipunculid worm Sipunculus nudus.
  • U. synaptae (Cuénot 1891 as Syncystis) Léger 1892 – coelom of sea cucumbers Synapta digitata, Leptosynapta inhaerens and L. galliennei.
  • U. travisiae Dogiel 1910 – coelom of polychaete Travisia forbesi.
  • U. tubificis Hesse 1909 – seminal vesicles and coelom of oligochaete Tubifex tubifex.

References

  1. 1.0 1.1 1.2 1.3 1.4 "Checklist of the species of the aseptate Gregarine family Urosporidae". International Journal for Parasitology 7 (2): 101–108. 1977. doi:10.1016/0020-7519(77)90074-1. 
  2. 2.0 2.1 2.2 "Morphology and Molecular Phylogeny of Coelomic Gregarines (Apicomplexa) with Different Types of Motility: Urospora ovalis and U. travisiae from the Polychaete Travisia forbesii". Protist 167 (3): 279–301. 2016. doi:10.1016/j.protis.2016.05.001. 
  3. "A new view on the morphology and phylogeny of eugregarines suggested by the evidence from the gregarine Ancora sagittata (Leuckart, 1860) Labbé, 1899 (Apicomplexa: Eugregarinida)". PeerJ 5: e3354. 2017. doi:10.7717/peerj.3354. 

Wikidata ☰ Q81337962 entry