Morphology and ultrastructure of pink cusk-eel (Genypterus blacodes, Schneider 1801) spermatozoa by scanning and transmission electron microscopy

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dc.contributor.authorDurmone, Kelly
dc.contributor.authorValdebenito, Iván
dc.contributor.authorRisopatron, Jennie
dc.contributor.authorFigueroa, Elías
dc.contributor.authorDíaz, Rommy
dc.contributor.authorFarias, Jorge
dc.date2018
dc.date.accessioned2020-06-24T15:18:19Z
dc.date.available2020-06-24T15:18:19Z
dc.description.abstractIn this study, the morphology and ultrastructure of Genypterus blacodes spermatozoa were characterized through scanning and transmission electron microscopy. Findings revealed that the G. blacodes spermatozoa can be differentiated into three major parts: a spherical head without an acrosome (typical for externally fertilizing fish), a short mid-piece, and a long flagellum. The mean length of the spermatozoa was 57.6 ± 6.08 μm, with flagella accounting for 56.2 ± 7.2 μm. The head was 1.47 ± 0.2 μm long, and 0.89 ± 0.06 μm wide. The mid-piece had a total dimension of 0.72 ± 0.16 μm, and was 0.31 ± 0.02 μm in length and 0.6 ± 0.05 μm in width. It was located lateral to the nucleus and contained 4 or 5 spherical mitochondria. The mitochondria were separated from the axoneme by a cytoplasmic canal. The main piece of the flagellum had short irregular side-fins, and the axoneme was composed of the typical 9 + 2 microtubular doublet structure enclosed by a cell membrane. The present study reveals that G. blacodes sperm can be categorized as a primitive type. This study is the first to provide comprehensive details on the morphology and ultrastructure of spermatozoa in G. blacodes.en_US
dc.formatPDFen_US
dc.identifier.citationTissue and Cell, Vol.54, 26-29en_US
dc.identifier.doi10.1016/j.tice.2018.07.005en_US
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/2238
dc.language.isoenen_US
dc.publisherElservier Science LTDen_US
dc.rightsObra bajo licencia Creative Commons 3.0en_US
dc.sourceTissue and Cellen_US
dc.subjectEsperma criopreservadoen_US
dc.subjectCriopreservaciónen_US
dc.subjectGenypterus blacodesen_US
dc.subjectAnguila Rosaen_US
dc.titleMorphology and ultrastructure of pink cusk-eel (Genypterus blacodes, Schneider 1801) spermatozoa by scanning and transmission electron microscopyen_US
dc.typeArtículo de Revistaen_US
uct.carreraAgronomíaen_US
uct.catalogadormlmen_US
uct.comunidadRecursos Naturalesen_US
uct.disciplinaAgronomíaen_US
uct.facultadFacultad de Recursos Naturalesen_US
uct.indizacionSCOPUSen_US
uct.nucleosNúcleo en Producción Alimentariaen_US
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