Morphology And Host-parasite Interaction Of Henneguya Azevedoi N. Sp., Parasite Of Gills Of Leporinus Obtusidens From Mogi-guaçu River, Brazil.

dc.creatorBarassa, Bianca
dc.creatorAdriano, Edson A
dc.creatorCordeiro, Nelson S
dc.creatorArana, Sarah
dc.creatorCeccarelli, Paulo S
dc.date2012-Feb
dc.date2015-11-27T13:28:39Z
dc.date2015-11-27T13:28:39Z
dc.date.accessioned2018-03-29T01:15:36Z
dc.date.available2018-03-29T01:15:36Z
dc.identifierParasitology Research. v. 110, n. 2, p. 887-94, 2012-Feb.
dc.identifier1432-1955
dc.identifier10.1007/s00436-011-2571-5
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/21842391
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/200069
dc.identifier21842391
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1300302
dc.descriptionHenneguya azevedoi n. sp. is described from the piava (Leporinus obtusidens). Between 2005 and 2007, 60 fish were collected from the Mogi-Guaçu River near Cachoeira de Emas Falls located in the municipality of Pirassununga, state of São Paulo, Brazil. A total of 70% had plasmodia of the parasite. The plasmodia were white, spherical, and measured 40-200 μm in diameter. Histopathological analysis revealed that the development of the parasite was intralamellar and caused stretching of the epithelium, with accentuated deformation, as well as compression of the capillary and adjacent tissues. Ultrastructural analysis revealed that the wall of the plasmodium was a single membrane in direct contact with the host cells and contained pinocytic canals that extended into the plasmodium. The development of the parasite was asynchronous, with the earliest stages at the periphery and mature spores in the central region. Mature spores were elongated in the frontal view [mean ± standard deviation (range)]: 45.2 ± 0.6 (45.0-47.0) μm in total length, 10.0 ± 0.07 (9.9-10.2) μm in body length, 35.6 ± 0.9 (34.9-36.5) μm in caudal process length, and 4.4 ± 0.4 (4.0-5.0) μm in body width. The polar capsules were elongated and equal in size: 3.8 ± 0.3 (3.5-4.0) μm in length and 1.0 μm in width. The polar filaments were coiled in six to seven turns and perpendicular to the axis of the capsule. Scanning electron microscopy revealed smooth valves and a conspicuous rim around the spore body. This is the first time that a myxosporean has been reported in L. obtusidens.
dc.description110
dc.description887-94
dc.languageeng
dc.relationParasitology Research
dc.relationParasitol. Res.
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAnimals
dc.subjectBrazil
dc.subjectCharaciformes
dc.subjectFish Diseases
dc.subjectGills
dc.subjectHistocytochemistry
dc.subjectHost-parasite Interactions
dc.subjectMicroscopy, Electron
dc.subjectMyxozoa
dc.subjectParasitic Diseases, Animal
dc.subjectRivers
dc.titleMorphology And Host-parasite Interaction Of Henneguya Azevedoi N. Sp., Parasite Of Gills Of Leporinus Obtusidens From Mogi-guaçu River, Brazil.
dc.typeArtículos de revistas


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