Folia Parasitologica, vol. 62 (2015)

Folia Parasitologica 62:045 (2015) | 10.14411/fp.2015.045

A novel myxozoan parasite of terrestrial mammals: description of Soricimyxum minuti sp. n. (Myxosporea) in pygmy shrew Sorex minutus from Hungary

Csaba Székely1, Gábor Cech1, Stephen D. Atkinson2, Kálmán Molnár1, László Egyed1, András Gubányi3
1 Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Science, Budapest, Hungary;
2 Department of Microbiology, Oregon State University, Corvallis, Oregon, USA;
3 Department of Zoology, Hungarian Natural History Museum, Budapest, Hungary

As part of a biodiversity study in northwestern Hungary, we conducted a parasitological survey of small mammals. In both common shrews (Sorex araneus Linnaeus) and pygmy shrews (Sorex minutus Linnaeus), we found myxospores of a species of Soricimyxum Prunescu, Prunescu, Pucek et Lom, 2007 (Myxosporea) and plasmodia in the bile ducts within the liver. Spores from both species of shrewswere morphologically and morphometrically indistinguishable, but differed in their SSU rRNA gene sequences by 3.3%. We identified spores and developmental stages from the common shrew as Soricimyxum fegati Prunescu, Prunescu, Pucek et Lom, 2007, based on morphometric data and DNA sequence similarity. Spores from the pygmy shrew were only 96.7% similar to S. fegati, hence we identified them as a novel myxosporean Soricimyxum minuti sp. n. This is only the second myxosporean parasite species described from mammals.

Keywords: Myxozoa, Soricimyxum spp., bile ducts, liver, mammalian hosts, Sorex spp., Hungary

Received: May 15, 2015; Accepted: June 29, 2015; Published online: August 19, 2015


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