Folia Parasitologica 54[3] 159-164 (2007) | DOI: 10.14411/fp.2007.022

The first finding of myxosporean development from plasmodia to spores in terrestrial mammals: Soricimyxum fegati gen. et sp. n. (Myxozoa) from Sorex araneus (Soricomorpha)

Carol-Constantin Prunescu1, Paula Prunescu1, Zdzislaw Pucek2, Jiří Lom3
1 Institute of Biology, Romanian Academy, P.O. Box 56-53, 296 Spl. Independentei, 060031 Bucharest, Romania
2 Mammal Research Institute, Polish Academy of Sciences, Waszkiewicza 1c, 17-230 Bialowieza, Poland
3 Institute of Parasitology, Biology Centre, Academy of Sciences of the Czech Republic, Branišovská 31, 370 05 České Budějovice, Czech Republic

Soricimyxum fegati gen. et sp. n. is a new myxosporean (Myxozoa) species discovered in the liver of shrews, Sorex araneus L., collected in the Bialowieza primeval forest (Poland). Both developmental stages and mature spores were found during a histological study. The infection had about 40% prevalence at the investigated locality. Plasmodia were polysporic. Elongated plasmodia with an average size of 30 by 8 µm occupied bile ducts and larger rounded plasmodia up to 80 µm in diameter were found in liver parenchyma where they most probably entered after the ducts had been destructed. Plasmodia in both locations elicited a vigorous inflammatory reaction. Spores were of an ovoid shape, 7 µm long, 5.4 µm wide and about 3.5 µm thick. They had two shell valves and two equal polar capsules, located in opposite ends of the spore.

Keywords: Myxozoa, Myxosporea, Soricimyxum fegati, liver infection, development, Sorex araneus, taxonomy

Received: March 13, 2007; Accepted: July 19, 2007; Published: September 1, 2007  Show citation

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Prunescu, C., Prunescu, P., Pucek, Z., & Lom, J. (2007). The first finding of myxosporean development from plasmodia to spores in terrestrial mammals: Soricimyxum fegati gen. et sp. n. (Myxozoa) from Sorex araneus (Soricomorpha). Folia Parasitologica, 54(3), 159-164. doi: 10.14411/fp.2007.022
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