Abstract
The present study describes a new species of Trichodina found in the mucus of the body surface of 137 farmed and wild silver catfish (Rhamdia quelen) located in southern Brazil and in the gills of 99 banded knife fish (Gymnotus sp.) captured in the basin of Pantanal. Smears of the body surface mucus and gills were air dried at room temperature and impregnated with silver nitrate and stained with Giemsa for analysis of the adhesive disc, denticles and macronucleus. Characterized as a medium trichodinid, Trichodina quelenii n. sp. resembles T heterodentata and T acuta. It differs from T heterodentata by the shape of the blade and from T acuta by the lack of central circle. Furthermore, the distinct shape of the blade of T quelenii n. sp. differs from all previously described species for the genus, leaving no doubt it is a new species.
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References
Asmat G.S.M. 2001. Trichodina canningensis sp. n. (Ciliophora: Trichodinidae) from an Indian estuarine fish, Mystus galio (Hamilton) (Bagridae). Acta Protozoologica, 40, 147–151
Asmat G.S.M., Kibria Md.M., Naher L. 2003. Trichodina gulshae sp. n. (Ciliophora: Trichodinidae) from the Gangetic Mystus, Mystus cavasisus (Hamilton-Buchanan, 1822) (Bagridae) in Chittagong. Pakistan Journal of Biological Science, 6, 1608–1611
Baldisserotto B., Radünz Neto J. (Eds) 2004. Criaçào de Jundiá. Ed UFSM, Santa Maria, RS, Brazil, pp. 390
Basson L., Van As J.G. 1993. First record of the European trichodinids (Ciliophora: Peritrichida) Trichodina acuta Lom, 1961 and T reticulata Hirschmann & Partsch, 1955 in South Africa. Acta Protozoologica, 32, 101–105
Jerónimo G.T., Speck G.M., Cechinel M.M., Gonçalves E.L.T., Martins M.L., 2011. Seasonal variation on the ectoparasitic communities of Nile tilapia cultured in three regions in Southern Brazil. Brazilian Journal of Biology, 71, 365–373.
Kruger J., Van As J.G., Basson L. 1995. Observations on the adhesive disc of Trichodina xenopodos Fantham, 1924 and T. heterodentata Duncan, 1977 (Ciliophora: Peritrichida) during binary fission. Acta Protozoologica, 34, 203–209.
Lom, J. 1958. A contribution to the systematics and morphology of endoparasitic trichodinids from amphibians, with a proposal of uniform specific characteristics. Journal of Protozoology, 5, 251–263
Lom J. 1995. Trichodinidae and other ciliates (Phylum Ciliophora). In: Woo P.T.K. (Ed.), Fish Diseases and Disorders, Vol. 1. Protozoan and Metazoan Infections. CAB International, Wallingford, pp. 229–262
Martins M.L., Ghiraldelli L. 2008. Trichodina magna Van As and Basson, 1989 (Ciliophora: Peritrichia) from cultured Nile tilapia in the state of Santa Catarina, Brazil. Brazilian Journal of Biology, 68, 177–180
Martins M.L., Marchiori N.C., Nunes G., Rodrigues M.P. 2010. First record of Trichodina heterodentata (Ciliophora: Trichodinidae) from channel catfish Ictaluruspunctatus cultivated in Brazil. Brazilian Journal of Biology, 70, 637–644
Martins M.L., Cardoso L., Marchiori N.C., Pàdua S.B. 2015. Protozoan infections in farmed fish from Brazil: diagnosis and pathogenesis. Brazilian Journal of Veterinary Parasitology, 24, 1–20
Pádua S.B., Ishikawa M.M., Satake F., Jerónimo G.T., Pilarski F. 2011. First record of Trypanosoma sp. (Protozoa: Kinetoplastida) in tuvira (Gymnotus aff. inaequilabiatus) in the Pantanal wetland, Mato Grosso do Sul State, Brazil. Brazilian Journal of Veterinary Parasitology, 20, 85–87
Pereira R.A.C., Resende E.K. 2006 Alimentaçào de Gymnotus cf carapo (Pisces: Gymnotidae) e suas relaçoes com a fauna associada às macrófitas aquáticas no Pantanal, Brasil. Boletim de Pesquisa e Desenvolvimento EMBRAPA, 68, 1–51. (In Portuguese)
Pinto E., Garcia A.M., Figueiredo H.C.P., Rodrigues M.P., Martins M.L. 2009. First record of Tripartiella sp. (Ciliophora: Peritrichia) in Pseudoplatystoma corruscans (Osteichthyes: Pimelodidae) cultured in the state of Mato Grosso do Sul, Brazil, with the description of a new species. Boletim do Instituto de Pesca, 35, 91–97
Valladäo G.M.R., Gallani S.U., Pádua S.B., Martins M.L., Pilarski F. 2014. Trichodina heterodentata (Ciliophora) infestation on Prochilodus lineatus larvae: a host-parasite relationship study. Parasitology, 141, 662–669
Valladäo G.M.R., Giannecchini L.G., Martins M.L., Pádua S.B. 2015. Trichodina modesta: an exotic ciliate in the Neotropical region parasitizing an unusual host. Brazilian Journal of Veterinary Parasitology, 24, 162–167
Van As J.G., Basson L. 1989. A further contribution to the taxonomy of the Trichodinidae (Ciliophora: Peritrichia) and a review of the taxonomic status of some fish ectoparasitic trichodinids. Systematic Parasitology, 14, 157–179
Zaniboni-Filho E. 2004. Piscicultura das espécies nativas de água doce. In: Poli C.R., Poli A.T.B., Andreatta E., Beltrame E. (Eds). Aquicultura: experiências brasileiras. Multifatorial Editora, Florianópolis, SC, Brazil, pp. 337–368
Wellborn Jr. T.L., 1967. Trichodina (Ciliata: Urceolariidae) of Freshwater Fishes of the Southeastern United States. Journal of Protozoology, 14, 399-41
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Hashimoto, G.S.O., Marchiori, N.C., Pádua, S.B. et al. A new species of Trichodina Ehrenberg, 1830 (Ciliophora: Trichodinidae) from Rhamdia quelen(Siluriformes: Heptapteridae) and Gymnotus sp. (Teleostei: Gymnotidae) in Brazil. Acta Parasit. 61, 707–712 (2016). https://doi.org/10.1515/ap-2016-0099
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DOI: https://doi.org/10.1515/ap-2016-0099