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Two new ectoparasitic ciliates, Sphenophrya solinis sp. nov. and Planeticovorticella paradoxa sp. nov. (Protozoa: Ciliophora), from marine molluscs

Published online by Cambridge University Press:  07 February 2011

Kuidong Xu ,
Yanli Lei ,
Khaled A.S. Al-Rasheid  and
Weibo Song
Kuidong Xu
Affiliation:
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Yanli Lei
Affiliation:
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Khaled A.S. Al-Rasheid
Affiliation:
Zoology Department, King Saud University, Riyadh 11451, Saudi Arabia
Weibo Song*
Affiliation:
Laboratory of Protozoology, Institute of Evolution & Marine Diversity, Ocean University of China, Qingdao 266003, China
*
Correspondence should be addressed to: W. Song, Laboratory of Protozoology, Institute of Evolution & Marine Diversity, Ocean University of China, Qingdao 266003, China email: [email protected]
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Abstract

Two new species of ciliates parasitizing marine molluscs in the Yellow Sea were described using live observation, protargol and wet silver impregnation: Sphenophrya solinis sp. nov. from the gills of Solen grandis and Planeticovorticella paradoxa sp. nov. from the gills as well as the mantle cavity of Meretrix meretrix. Sphenophrya solinis is elongate boat-shaped, and characterized by having the right system of 5–6 kineties more or less distinctly longer than the left system of 3–5 kineties and the bud formed on the dorsal left of body during budding. Planeticovorticella paradoxa is a second member of the genus Planeticovorticella, and characterized by the free-swimming, cylindroidal trophonts usually with no stalk or with a very short and non-contractile stalk, the C-shaped macronucleus longitudinally oriented in mid-body, and the apically located contractile vacuole. The morphology, infraciliature and morphometry of the two new species were studied in detail and compared with those of their most similar congeners.

Keywords

parasitic ciliatesnew speciesSphenophrya solinisPlaneticovorticella paradoxamarine mollusc
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 91 , Special Issue 2: Biodiversity and Taxonomy , March 2011 , pp. 265 - 274
Copyright
Copyright © Marine Biological Association of the United Kingdom 2011

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References

REFERENCES

Boshko, E.G. (1987) Epistylis borysthenicus sp. n. (Peritricha, Epistylididae) infusoria from molluscs of the genera Unio and Anodonta in reservoirs of the Dnieper River basin. Zoologičeskij Žurnal 66, 295–298.Google Scholar
Bower, S.M., McGladdery, S.E. and Price, I.M. (1994) Synopsis of infectious diseases and parasites of commercially exploited shellfish. Annual Review of Fish Diseases 4, 1–199.CrossRefGoogle Scholar
Chatton, E. and Lwoff, A. (1921) Sur une famille nouvelle d'acinétiens, les Sphenophryidae adaptès aux branchies des mollusques acèphales. Comptes Rendus de l'Académie des Sciences, Paris 173, 1495–1497.Google Scholar
Chatton, E. and Lwoff, A. (1950) Les ciliés thigmotriches II. Archives de Zoologie Expérimentale et Générale 86, 393–485.Google Scholar
Clamp, J.C. and Coats, D.W. (2000) Planeticovorticella finleyi n. g., n. sp. (Peritrichia, Vorticellidae), a planktonic ciliate with a polymorphic life cycle. Invertebrate Biology 119, 1–16.CrossRefGoogle Scholar
Corliss, J.O. (1979) The ciliated protozoa. 2nd edition.Oxford: Pergamon Press.Google Scholar
Fan, X., Chen, X., Song, W., AL-Rasheid, K.A.S. and Warren, A. (2010) Two new marine scuticociliates, Sathrophilus planus n. sp. and Pseudoplatynematum dengi n. sp., with improved definition of Pseudoplatynematum (Ciliophora, Oligohymenophora). European Journal of Protistology 46, 212–220.CrossRefGoogle Scholar
Fenchel, T. (1965) Ciliates from Scandinavian molluscs. Ophelia 2, 71–174.CrossRefGoogle Scholar
Foissner, W. (1991) Basic light and scanning electron microscopic methods for taxonomic studies of ciliated protozoa. European Journal of Protistology 27, 313–330.Google Scholar
Gao, F., Fan, X., Yi, Z.Strüder-Kypke, M. and Song, W. (2010) Phylogenetic consideration of two scuticociliate genera, Philasterides and Boveria (Protozoa, Ciliophora) based on 18S rRNA gene sequences. Parasitology International 59, 549–555.Google Scholar
ICZN (The International Commission on Zoological Nomenclature) (1999) International Code of Zoological Nomenclature. London: International Trust for Zoological Nomenclature.Google Scholar
Ji, D., Xu, H., Choi, J.K., Warren, A. and Song, W. (2009) Taxonomic characterization of three marine peritrichous ciliates from China: Zoothamnium alrasheidi spec. nov., Z. marinum Kahl, 1933 and Z. vermicola Precht, 1935 (Ciliophora: Peritrichia). Acta Protozoologica 48, 171–183.Google Scholar
Lom, J. and Dykova, I. (1992) Protozoan parasites of fishes. Developments in Aquaculture and Fisheries Science 26, 1–315.Google Scholar
Lynn, D.H. (2008) The ciliated protozoa. 3rd edition.Dordrecht: Springer.Google Scholar
Ma, H. and Overstreet, R.M. (2006) Two new species of Epistylis (Ciliophora: Peritrichida) on the blue crab (Callinectes sapidus) in the Gulf of Mexico. Journal of Eukaryotic Microbiology 53, 85–95.CrossRefGoogle Scholar
Miao, M., Wang, Y., Li, L., Al-Rasheid, K.A.S. and Song, W. (2009) Molecular phylogeny of the scuticociliate Philaster (Protozoa, Ciliophora) based on SSU rRNA gene sequences information, with description of a new species P. apodigitiformis sp. n. Systematics and Biodiversity 7, 381–388CrossRefGoogle Scholar
Miao, M., Wang, Y., Song, W., Clamp, J.C. and Al-Rasheid, K.A.S. (2010) Description of Eurystomatella sinica n. gen., n. sp., with establishment of a new family Eurystomatellidae n. fam. (Protista, Ciliophora, Scuticociliatia) and analyses of its phylogeny inferred from sequences of the small-subunit rRNA gene. International Journal of Systematics and Evolution of Microbiology 60, 460–468.Google Scholar
Mjassnikowa, M. (1930) Sphaenophrya sphaerii, ein neues Infusorium aus Sphaerium corneum L. Archiv für Protistenkunde 71, 255–294.Google Scholar
Pan, H., Huang, J., Hu, X., Fan, X., Al-Rasheid, K.A.S. and Song, W. (2010) Morphology and SSU rRNA gene sequences of three marine ciliates from Yellow Sea, China, including one new species, Uronema heteromarinum nov. spec. (Ciliophora, Scuticociliatida). Acta Protozoologica 49, 45–59.Google Scholar
Poljansky, I.U. (1951) On some parasitic infusoria of marine molluscs and holothurians. Magazine of Parasitology Moscow 13, 355–370. [In Russian.]Google Scholar
Raabe, Z. (1938) Weiter Untersuchungen an parasitischen Ciliaten aus dem polnischen Teil der Ostsee. II. Ciliata Thigmotricha aus den Familien: Hypocomidae Bütschli und Sphaenophryidae Ch. Lw. Annales Musei Zoologici Polonici 13, 41–75.Google Scholar
Raabe, Z. (1949) Recherches sur les ciliés Thigmotriches (Thigmotricha Ch. Lw). III. Développement non-parallèle de deux espèces du genre Sphenophrya Ch. Lw. Annales Universitatis Mariae Curie–Sklodowska Lublin–Polonia 4, 119–135.Google Scholar
Raabe, Z. (1970) Ordo Thigmotricha (Ciliata–Holotricha) III. Familiae Ancistrocomidae et Sphenophryidae. Acta Protozoologica 7, 385–462.Google Scholar
Song, W., Zhao, Y., Xu, K., Hu, X. and Gong, J. (2003) Pathogenic protozoa in mariculture. Beijing: Science Press. [In Chinese.]Google Scholar
Sprague, V. (1970) Some protozoan parasites and hyperparasites in marine bivalve molluscs. American Fisheries Society Special Publication, 5, 511–526.Google Scholar
Wilbert, N. (1975) Eine verbesserte Technik der Protargolimprägnation für Ciliaten. Mikrokosmos 64, 171–179.Google Scholar
Xu, K. and Song, W. (2003a) Parasitic ciliates of cultured molluscs. In Song, W., Zhao, Y., Xu, K., Hu, X.Gong, J. (eds) Pathogenic protozoa in mariculture. Beijing: Science Press, pp. 115–144. [In Chinese.]Google Scholar
Xu, K. and Song, W. (2003b) Ectoparasitic ciliates of marine fishes. In Song, W., Zhao, Y., Xu, K., Hu, X.Gong, J (eds) Pathogenic protozoa in mariculture. Beijing: Science Press, pp. 232–262. [In Chinese.]Google Scholar
Xu, K., Song, W. and Warren, A. (1999) Trichodinid ectoparasites (Ciliophora: Peritrichida) from the gills of mariculture molluscs in China, with the descriptions of four new species of Trichodina Ehrenberg, 1838. Systematic Parasitology 42, 229–237.CrossRefGoogle Scholar
Xu, K., Song, W. and Warren, A. (2000) Observations on trichodinid ectoparasites (Ciliophora: Peritricha) from the gills of mariculture molluscs in China, with the descriptions of three new species of Trichodina Ehrenberg, 1838. Systematic Parasitology 45, 17–24.CrossRefGoogle Scholar
Yi, Z., Song, W., Gong, J., Warren, A., Al-Rasheid, K.A.S., Al-Arifi, S. and Al-Khedhairy, A.A. (2009) Phylogeny of six oligohymenophoreans (Protozoa, Ciliophora) inferred from small subunit rRNA gene sequences. Zoologica Scripta 38, 323–331.CrossRefGoogle Scholar