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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
08/01/1997 |
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Data da última atualização: |
16/05/2023 |
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Autoria: |
WALLACE, J. C.; WALES, R. G. |
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Título: |
Effect of ions on the metabolism of ejaculated and epididymal ram spermatozoa. |
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Ano de publicação: |
1964 |
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Fonte/Imprenta: |
Journal of Reproduction and Fertility, v. 8, p. 187-203, 1964. |
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DOI: |
10.1530/jrf.0.0080187 |
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Idioma: |
Inglês |
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Conteúdo: |
The effects of potassium, magnesium, calcium and phosphate ions on the metabolism of ejaculated and epididymal ram spermatozoa have been studied. Respiration and fructolysis were measured and isotopically labelled fructose was used to assess the contribution of fructose oxidation to total oxygen uptake. Potassium and phosphate ions significantly increased both respiration and fructolysis; magnesium and calcium had much less influence and there were few significant interactions between the ions tested. The most significant effect of washing spermatozoa free of seminal plasma was the reduction in the oxidation of substrates other than fructose. Washing also tended to accentuate the effects of other treatments. There were differences between ejaculated and epididymal spermatozoa in the response ofoxidative metabolism to potassium but, in general, the metabolic patterns of these cells were similar. |
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Palavras-Chave: |
Bioquimica seminal. |
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Thesagro: |
Reprodução. |
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Thesaurus Nal: |
Body fluids; Calcium; Dietary minerals; Fructose; Ions; Magnesium; Pharmacology; Phosphates; Potassium; Reproduction; Seminal plasma proteins; Sheep; Spermatozoa. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01789naa a2200325 a 4500
001 1522487
005 2023-05-16
008 1964 bl uuuu u00u1 u #d
024 7 $a10.1530/jrf.0.0080187$2DOI
100 1 $aWALLACE, J. C.
245 $aEffect of ions on the metabolism of ejaculated and epididymal ram spermatozoa.$h[electronic resource]
260 $c1964
520 $aThe effects of potassium, magnesium, calcium and phosphate ions on the metabolism of ejaculated and epididymal ram spermatozoa have been studied. Respiration and fructolysis were measured and isotopically labelled fructose was used to assess the contribution of fructose oxidation to total oxygen uptake. Potassium and phosphate ions significantly increased both respiration and fructolysis; magnesium and calcium had much less influence and there were few significant interactions between the ions tested. The most significant effect of washing spermatozoa free of seminal plasma was the reduction in the oxidation of substrates other than fructose. Washing also tended to accentuate the effects of other treatments. There were differences between ejaculated and epididymal spermatozoa in the response ofoxidative metabolism to potassium but, in general, the metabolic patterns of these cells were similar.
650 $aBody fluids
650 $aCalcium
650 $aDietary minerals
650 $aFructose
650 $aIons
650 $aMagnesium
650 $aPharmacology
650 $aPhosphates
650 $aPotassium
650 $aReproduction
650 $aSeminal plasma proteins
650 $aSheep
650 $aSpermatozoa
650 $aReprodução
653 $aBioquimica seminal
700 1 $aWALES, R. G.
773 $tJournal of Reproduction and Fertility$gv. 8, p. 187-203, 1964.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
