Apicystis

Genus of single-celled organisms

Apicystis
Scientific classification
Domain:
Eukaryota
(unranked):
Sar
(unranked):
Alveolata
Phylum:
Apicomplexa
Class:
Conoidasida
Subclass:
Gregarinasina
Order:
Neogregarinorida
Family:
Lipotrophidae
Genus:
Apicystis
Species

Apicystis bombi

Apicystis is a genus of parasitic alveolates of the phylum Apicomplexa.

Taxonomy

There are two species currently recognized in this genus: A. bombi and A. cryptica

History

Apicystis bombi was first described by Liu in 1974 as a species in the genus Mattesia.

In 1996, Lipa and Triggiani transferred this organism to a new genus Apicystis on the basis of morphology and life cycle.[1]

In 2020, Schoonavere et al. described A. cryptica, associated to the bumble bees Bombus pascuorum, B. sichelii and B. veteranus [2]

Description

The species in this genus are spread by the orofaecal route.

Oocysts are ingested. Within the intestine these develop into sporozoites.

The sporozoites penetrate the gut wall and invade the haemocoele subsequently taking up residence in the fat body.

Host records

This genus infects a number of hosts

References

  1. ^ Lipa, J.J.; Triggiani, O. (1996). "Apicystis gen nov and Apicystis bombi (Liu, Macfarlane & Pengelly) comb nov (Protozoa: Neogregarinida), a cosmopolitan parasite of Bombus and Apis (Hymenoptera: Apidae)". Apidologie. 27 (1): 29–34. doi:10.1051/apido:19960104.
  2. ^ Schoonvaere, K., Brunain, M., Baeke, F., De Bruyne, M., De Rycke, R., & De Graaf, D. C. (2020). Comparison between Apicystis cryptica sp. n. and Apicystis bombi (Arthrogregarida, Apicomplexa): Gregarine parasites that cause fat body hypertrophism in bees. European Journal of Protistology, 73, 125688
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Domain
Archaea
Bacteria
Eukaryota
(major groups
Excavata
Diaphoretickes
Hacrobia
Rhizaria
Alveolata
Stramenopiles
Plants
Amorphea
Amoebozoa
Opisthokonta
Animals
Fungi)
Acavomonidia
Acavomonadea
Acavomonadida (Acavomonas)
Ciliophora
Intramacronucleata
Postciliodesmatophora
Mesodiniea (Mesodinium, Myrionecta)
Colponemidia
Colponemadea
Colponemadida (Colponema)
Aconoidasida
Haemospororida
Piroplasmida
Agamococcidiorida
Eucoccidiorida
Adeleorina
Eimeriorina
Sarcocystidae
Ixorheorida
Protococcidiorida
Archigregarinorida
Eugregarinorida
Aseptatorina
Blastogregarinorina
Septatorina
Neogregarinorida
Apicomonadea
Chromerida
Colpodellida
Voromonadida
Dinoflagellata
Dinokaryota
Noctilucea
Syndinea
Other
Perkinsozoa
Perkinsea
Protoalveolata
Ellobiopsea
  • Ellobiopsidae (Elliobiocystis, Ellobiopsis, Parallobiopsis, Thalassomyces, Rhizellobiopsis)
Myzomonadea
Algovorida
  • Algovoridae (Algovora)
Chilovorida
  • Chilovoridae (Chilovora)
Squirmidea
Taxon identifiers
Apicystis


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