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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
25/07/2023 |
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Autoria: |
COURTENS, J. L.; NUNES, J. F.; CORTEEL, J. M. |
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Título: |
Induction of the acrosome reaction in the spermatozoa of the goat by secretions of the male accessory glands and milk. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
Gamete Research, v. 9, n. 3, p. 287-302, 1984. |
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DOI: |
10.1002/mrd.1120090306 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The balancing effects of bulbourethral gland secretion (BUS) and of seminal vesicle secretion (SVS) on goat semen quality were previously demonstrated. In the present study, electron microscope observations revealed a high frequency of spermatozoa with a reacted acrosome among spermatozoa from cauda epididymis exposed to BUS in the presence of milk. This frequency was significantly reduced when SVS had been added either before or after BUS. No reacted acrosome was observed in the absence of milk. All mount spermatozoa were incubated with milk or SVS or BUS or combinations of the three materials labeled with colloidal gold. SVS attached specifically on the plasma membrane covering the anterior part of the acrosome, whereas BUS spread all over the sperm head. Milk attached on the anterior half of the sperm head only when BUS was present in the sperm environment. It is concluded that BUS plays an active role in the induction of the acrosome reaction in the presence of milk and that SVS counteracts this role. |
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Palavras-Chave: |
Goat; Male genital system; Reacao acrossomica; Scrosome reaction; Secrecao vesicular seminal; Seminal vesicular secretion; Vesicular glands. |
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Thesagro: |
Caprino; Fisiologia; Sêmen. |
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Thesaurus Nal: |
Acrosome reaction; Artiodactyla; Fertilization (reproduction); Goats; Secretion; Seminal vesicles; Spermatozoa; Ultrastructure. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02115naa a2200373 a 4500
001 1520249
005 2023-07-25
008 1984 bl uuuu u00u1 u #d
024 7 $a10.1002/mrd.1120090306$2DOI
100 1 $aCOURTENS, J. L.
245 $aInduction of the acrosome reaction in the spermatozoa of the goat by secretions of the male accessory glands and milk.$h[electronic resource]
260 $c1984
520 $aAbstract: The balancing effects of bulbourethral gland secretion (BUS) and of seminal vesicle secretion (SVS) on goat semen quality were previously demonstrated. In the present study, electron microscope observations revealed a high frequency of spermatozoa with a reacted acrosome among spermatozoa from cauda epididymis exposed to BUS in the presence of milk. This frequency was significantly reduced when SVS had been added either before or after BUS. No reacted acrosome was observed in the absence of milk. All mount spermatozoa were incubated with milk or SVS or BUS or combinations of the three materials labeled with colloidal gold. SVS attached specifically on the plasma membrane covering the anterior part of the acrosome, whereas BUS spread all over the sperm head. Milk attached on the anterior half of the sperm head only when BUS was present in the sperm environment. It is concluded that BUS plays an active role in the induction of the acrosome reaction in the presence of milk and that SVS counteracts this role.
650 $aAcrosome reaction
650 $aArtiodactyla
650 $aFertilization (reproduction)
650 $aGoats
650 $aSecretion
650 $aSeminal vesicles
650 $aSpermatozoa
650 $aUltrastructure
650 $aCaprino
650 $aFisiologia
650 $aSêmen
653 $aGoat
653 $aMale genital system
653 $aReacao acrossomica
653 $aScrosome reaction
653 $aSecrecao vesicular seminal
653 $aSeminal vesicular secretion
653 $aVesicular glands
700 1 $aNUNES, J. F.
700 1 $aCORTEEL, J. M.
773 $tGamete Research$gv. 9, n. 3, p. 287-302, 1984.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
