The Lipids of Sea-Urchin Semen
| Autor: | A. Cardin, M. L. Meara |
|---|---|
| Rok vydání: | 1953 |
| Předmět: |
chemistry.chemical_classification
Animal fat Chromatography biology Physiology Fatty acid Semen Neutral fat Aquatic Science Unsaponifiable chemistry Insect Science biology.animal lipids (amino acids peptides and proteins) Animal Science and Zoology Composition (visual arts) Molecular Biology Sea urchin Ecology Evolution Behavior and Systematics |
| Zdroj: | Journal of Experimental Biology. 30:561-566 |
| ISSN: | 1477-9145 0022-0949 |
| DOI: | 10.1242/jeb.30.4.561 |
| Popis: | The constitution of the lipid material present in semen has received very scant attention. No reference appears in the literature relating to the component fatty acids of semen lipids, although the presence of neutral fat, free fatty acid, free and combined sterols, phosphatides, and sphingomyelin has been reported by Woodhouse (1928) in the sex organs of domestic animals and of humans ; likewise, Sakaki (1913) reported the presence of phosphatides and sphingomyelin in the human placenta; Sano (1922) reported the presence of these phosphatides in the fresh ‘sperm freed from membranes and connective tissue ‘of the cod, porgy and salmon. More recently, Lardy & Phillips (1941), in an investigation of the sources of energy for bull spermatozoa, showed that the phospholipid content of both semen and spermatozoa decreased when incubation was carried out in the absence of extracellular substrates but in the presence of oxygen. |
| Databáze: | OpenAIRE |
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