ArticleParasitology research2020
Coelozoic parasite of the family Ceratomyxidae (Myxozoa, Bivalvulida) described from motile vermiform plasmodia found in Hemiodus unimaculatus Bloch, 1794.
Article in Parasitology research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 26 citations in OpenAlex.
- Morphological and Phylogenetic Analyses of Ceratomyxa tessaloniensis n. sp. In Astyanax mexicanus De Fillipi, 1853 (Characiformes: Characidae) from the Flexal River, Tessalônica Community, Amapá, Amazon, Brazil.Acta parasitologica · 2025Article
- Intraspecific Morphometric Variation in a New Species ofBiology · 2025Article
- Morphology and molecular characterization of Ceratomyxa sp. (Cnidaria, Myxosporea, Ceratomyxidae), infecting the gallbladder of Curimata cyprinoides (Characiformes: Curimatidae) in the lower Araguaia River, Brazil.Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria · 2025Article
- New freshwater Ceratomyxa species, Ceratomyxa affinis n. sp. (Myxozoa: Ceratomyxidae) in the gallbladder of Leporinus affinis from Brazilian Amazon.Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria · 2025Article
- A Gallbladder Ceratomyxidae (Myxozoa: Bivalvulida) Parasite Described In Pimelodella cristata (Müller & Troschel, 1848) From the Eastern Amazon.Acta parasitologica · 2024Article
- A new Ceratomyxa (Cnidaria: Myxosporea) infecting the ornamental fish species Pterophyllum scalare from the Amazon Region, Brazil.Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria · 2024Article
- Ceratomyxa matosi n. sp. (Myxozoa: Ceratomyxidae) parasitizing the gallbladder of Boulengerella cuvieri (Characiformes: Ctenoluciidae) State of Amapá, Brazilian Amazon.Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria · 2024Article
- Morphological and Phylogenetic Features of Ceratomyxa macapaensis n. sp. (Myxozoa: Ceratomyxidae) in Mesonauta festivus Heckel, 1840 (Cichliformes: Cichlidae) from the Eastern Amazon Region.Acta parasitologica · 2022Article
- How to build single-celled cnidarians with worm-like motility: Lessons from Myxozoa.Journal of anatomy · 2022Article
- To React or Not to React: The Dilemma of Fish Immune Systems Facing Myxozoan Infections.Frontiers in immunology · 2021Review
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Authors and funding
4 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Myxozoans of the family Ceratomyxidae are common coelozoic parasites of marine, anadromous, and freshwater fish, and may also be found, less frequently, parasitizing the tissue of these hosts. The diversity and ecology of the freshwater species of the genus Ceratomyxa have been poorly investigated, leading to a knowledge gap that restricts the understanding of the distribution and prevalence of this group of parasites. In the present study, parasites were found inside vermiform plasmodia, characterised by oscillatory movements in the characiform species Hemiodus unimaculatus. The crescent-shaped and elongated spores, perpendicular to the suture line, have a mean length of 28.9 ± 2.7 μm and width of 2.6 ± 0.1 μm, with two symmetrical oval polar capsules, 1.9 ± 0.3 μm in length and 1.7 ± 0.2 μm in width, containing polar filaments with three or four coils, located near the central suture, with symmetrical lateral elongations 14.3 ± 1.1 μm in length and binucleate amoeboid sporoplasm. The integrated comparative analysis of the morphological characteristics and partial SSU rRNA sequences supported the identification of a new species of coelozoic Ceratomyxa, found in the gallbladder of H. unimaculatus, from the Tocantins basin, in the municipalities of Estreito and Imperatriz in eastern Brazilian Amazonia.The new species was denominated Ceratomyxa fonsecai n. sp.
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