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Ceratomyxa aegyptiaca n. sp. (Myxozoa: Myxosporea) from the gall-bladder of Solea aegyptiaca Chabanaud (Pleuronectiformes: Soleidae) in a Tunisian coastal lagoon

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Abstract

A new marine myxosporean species, Ceratomyxa aegyptiaca n. sp. is described from the gall-bladder of Solea aegyptiaca Chabanaud collected from the Ghar El Melh Lagoon in northeastern Tunisia. Mature spores are elongate and crescent-shaped, measuring 8–11 μm in length and 48–58 μm in width. The polar capsules are spherical, 3.2–4 μm in diameter and equal in size. Trophozoites are polysporous and float free in the bile or are attached on the epithelium of the gall-bladder. Morphological data and molecular analysis based on 18S rDNA sequences are provided. The 18S rDNA of C. aegyptiaca is readily distinguishable from that of other myxozoan species, as the genetically most similar myxozoan parasite, C. seriolae Yokoyama & Fukuda, 2001 (AB530265) collected from Seriola quinqueradiata Temminck & Schlegel in Japanese waters, shares with it only 67.5% identical nucleotides over a 1,680-bp long fragment of 18S rDNA.

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Acknowledgement

The molecular part of the study was supported by the Hungarian Scientific Research Fund (OTKA K75873).

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Authors and Affiliations

  1. Département de Biologie, Faculté des Sciences de Tunis, Université Tunis El Manar, 2092, Tunis, Tunisia

    Chiraz Yemmen & Sihem Bahri

  2. Veterinary Medical Research Institute, Hungarian Academy of Sciences, PO Box 18, Budapest, 1581, Hungary

    Szilvia Marton & Edit Eszterbauer

Authors
  1. Chiraz Yemmen
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  2. Szilvia Marton
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  3. Edit Eszterbauer
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  4. Sihem Bahri
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Correspondence to Chiraz Yemmen.

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Yemmen, C., Marton, S., Eszterbauer, E. et al. Ceratomyxa aegyptiaca n. sp. (Myxozoa: Myxosporea) from the gall-bladder of Solea aegyptiaca Chabanaud (Pleuronectiformes: Soleidae) in a Tunisian coastal lagoon. Syst Parasitol 83, 21–28 (2012). https://doi.org/10.1007/s11230-012-9365-8

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