Morphological And Ultrastructural Aspects Of Myxobolus Niger N. Sp. (myxozoa) Gill Parasite Of Corydoras Melini (siluriformes: Callichthyidae) From Brazilian Amazon

dc.creatorMathews P.D.
dc.creatorMaia A.A.M.
dc.creatorAdriano E.A.
dc.date2016
dc.date2017-08-17T19:17:46Z
dc.date2017-08-17T19:17:46Z
dc.date.accessioned2018-03-29T05:27:24Z
dc.date.available2018-03-29T05:27:24Z
dc.identifierActa Tropica. Elsevier, v. 158, p. 214 - 219, 2016.
dc.identifier0001-706X
dc.identifier10.1016/j.actatropica.2016.03.016
dc.identifierhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84961214229&doi=10.1016%2fj.actatropica.2016.03.016&partnerID=40&md5=b77725b156402359fbf2f756a14d1086
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/324163
dc.identifier2-s2.0-84961214229
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1358326
dc.descriptionMyxobolus niger n. sp. (Myxozoa) is described in the connective tissue of the serosa layer of the gill arch of Corydoras melini (Callichthyidae) captured from the Negro River, Amazonas State, Brazil. The prevalence of the parasite was 20% and the range intensity was 1-2 cysts per fish. The plasmodia were white and spherical to ellipsoidal, measuring 175 μm in diameter and were surrounded by a well-defined capsule of host connective tissue, with distinct delicate and interlaced collagen fibers. The myxospores body was ellipsoidal in frontal view and biconvex in sutural view. Spore dimensions were 11.3 ± 0.4 μm in length, 6.8 ± 0.2 μm in width and 4.1 ± 0.2 μm in thickness. The valves were symmetrical and smooth. The two polar capsules were elongated as pyriform and equal in size, measure 5.0 ± 0.3 μm in length and 2.0 ± 0.1 μm in width. The polar capsule had six to seven polar filament turns. Some aberrant spores were round in shape and had three polar capsules. The sporoplasm was binucleated and contained moderated number of sporoplasmosomes. The development of the plasmodia was asynchronic, with mature and immature spores. The plasmodium had moderated pynocitic channels. There were no projections, no invaginations and no microvilli in the plasmodial wall. This study is the first description of Myxobolus species in the fish of the Callichthyidae family. © 2016 Elsevier B.V.
dc.description158
dc.description214
dc.description219
dc.languageEnglish
dc.publisherElsevier
dc.relationActa Tropica
dc.rightsfechado
dc.sourceScopus
dc.subjectAmazon
dc.subjectFish Parasite
dc.subjectMyxozoa
dc.subjectOrnamental Fish
dc.subjectUltrastructure
dc.titleMorphological And Ultrastructural Aspects Of Myxobolus Niger N. Sp. (myxozoa) Gill Parasite Of Corydoras Melini (siluriformes: Callichthyidae) From Brazilian Amazon
dc.typeArtículos de revistas


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