Margolisiella

Margolisiella is a genus of parasitic alveolates belonging to the phylum Apicomplexa.

Margolisiella
Scientific classification
Domain:
Eukaryota
(unranked):
Sar
(unranked):
Alveolata
Phylum:
Apicomplexa
Class:
Conoidasida
Subclass:
Coccidiasina
Order:
Eucoccidiorida
Suborder:
Eimeriorina
Family:
Eimeriidae
Genus:
Margolisiella
Species

Margolisiella chitonis
Margolisiella haliotis
Margolisiella islandica
Margolisiella kabatai
Margolisiella patellae
Margolisiella tellinovum

History

This genus was created in 1997 by Desser and Bower for a group of protozoa that infect little neck clams (Protothaca staminea).[1] The genus is named after Leo Margolis, a marine biologist.

Four species were transferred from the genus Pseudoklossia to Margolisiella: Margolisiella chitonis, Margolisiella haliotis, Margolisiella patellae and Margolisiella tellinovum.

Taxonomy

There are six species currently recognised in this genus.

Description

These are monoxenous parasites of marine bivalve molluscs. They infect primarily the renal epithelium. Merogony, sporogony and gametogony occur in the same host. Sporulation also occurs in the same host. The oocysts are large with numerous sporocytes. The sporocytes have 2-4 sporozoites each.

Life cycle

Very little is known about the life cycle. The parasites are presumably ingested via the oral route and excreted in from the renal tract.

Host records
  • M. islandica - Iceland scallops (Chlamys islandica)[2]
  • M. kabatai - littleneck clam (Protothaca staminea)
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References
  1. Desser SS, Bower SM (1997) Margolisiella kabatai gen. et sp. n. (Apicomplexa: Eimeriidae), a parasite of native littleneck clams, Protothaca staminea, from British Columbia, Canada, with a taxonomic revision of the coccidian parasites of bivalves (Mollusca: Bivalvia). Folia Parasitol (Praha) 44(4):241-247
  2. Kristmundsson Á, Helgason S, Bambir SH, Eydal M, Freeman MA (2011) Margolisiella islandica sp. nov. (Apicomplexa: Eimeridae) infecting Iceland scallop Chlamys islandica (Müller, 1776) in Icelandic waters. J Invertebr Pathol 108(3):139-146


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