Sperm morphology and ultrastructure of Patagonian blenny (Eleginops maclovinus)
Author
dc.contributor.author
Ulloa-Rodríguez, Patricio
Author
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Contreras, Pablo
Author
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Dumorné, Kelly
Author
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Figueroa, Elías
Author
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Risopatrón, Jennie
Author
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Valdebenito, Iván
Author
dc.contributor.author
Farías, Jorge G.
Admission date
dc.date.accessioned
2019-10-15T12:25:27Z
Available date
dc.date.available
2019-10-15T12:25:27Z
Publication date
dc.date.issued
2019
Cita de ítem
dc.identifier.citation
Tissue and Cell, Volumen 57,
Identifier
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15323072
Identifier
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00408166
Identifier
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10.1016/j.tice.2019.02.006
Identifier
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https://repositorio.uchile.cl/handle/2250/171689
Abstract
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In 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 μm, with flagella accounting for 38.38 ± 2.08 μm. The head was 1.31 ± 0.17 μm long, and 1.63 ± 0.01 μm wide. The midpiece was 0.39 ± 0.05 μm in length and 0.95 ± 0.12 μm 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