Sperm morphology and ultrastructure of Patagonian blenny (Eleginops maclovinus)

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dc.contributor.authorUlloa Rodriguez, Patricio
dc.contributor.authorContreras, Pablo
dc.contributor.authorDumorne, Kelly
dc.contributor.authorFigueroa Villalobos, Elías
dc.contributor.authorRisopatron, Jennie
dc.contributor.authorValdebenito Isler, Iván
dc.contributor.authorFarias, Jorge G.
dc.date2019
dc.date.accessioned2021-04-30T16:46:56Z
dc.date.available2021-04-30T16:46:56Z
dc.description.abstractIn this study, the morphology and ultrastructure of Eleginops maclovinus spermatozoa were characterized through scanning and electron microscopy. Findings revealed that E. maclovinus spermatozoa can be differentiated into three major parts: a spherical head without acrosome (typical for externally fertilizing teleost), a midpiece containing 2-5 spherical mitochondria, and a long flagellum. The mean length of the spermatozoa was 40.08 +/- 2.30 mu m, with flagella accounting for 38.38 +/- 2.08 mu m. The head was 1.31 +/- 0.17 mu m long, and 1.63 +/- 0.01 mu m wide. The midpiece was 0.39 +/- 0.05 mu m in length and 0.95 +/- 0.12 mu m in width. It was located below the nucleus and contained 2 to 5 spherical mitochondria. The mitochondria were separated from the axoneme by a cytoplasmic canal. There was no evidence of the flagellum membrane forming sidefins, and the axoneme was composed of the typical 9 + 2 microtubular doublet structure enclosed by cell membrane. The present study reveals that E. maclovinus sperm can be categorized as a primitive type. This study is the first to provide comprehensive details on the ultrastructure of spermatozoa in E. maclovinus.
dc.identifier.citationTISSUE & CELL,Vol.57,66-69,2019
dc.identifier.doi10.1016/j.tice.2019.02.006
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/3411
dc.language.isoen
dc.publisherCHURCHILL LIVINGSTONE
dc.sourceTISSUE & CELL
dc.subject.englishScanning electron microscopy
dc.subject.englishTransmission electron microscopy
dc.subject.englishTeleost
dc.subject.englishFish spermatozoa
dc.titleSperm morphology and ultrastructure of Patagonian blenny (Eleginops maclovinus)
dc.typeArticle
uct.catalogadorWOS
uct.indizacionSCI
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