Matches in SemOpenAlex for { <https://semopenalex.org/work/W2080321640> ?p ?o ?g. }
- W2080321640 endingPage "344" @default.
- W2080321640 startingPage "323" @default.
- W2080321640 abstract "Using a semi-chemically defined medium, the requirement of extracellular Ca2+ for survival, capacitation, and acrosome reaction of spermatozoa as well as various stages of fertilization in the hamster was studied. A Ca2+-deficient environment is unfavorable for long-term survival of spermatozoa. Sperm capacitation may occur in Ca2+-deficient media, but not as efficiently as in normal media. The acrosome reaction definitely requires extracellular Ca2+. Other processes or phenomena that require extracellular Ca2+ are initiation and maintenance of hyperactivated motility of spermatozoa, penetration of acrosome-reacted spermatozoa into the zona pellucida, fusion of the spermatozoa with eggs, and the development of pronuclear eggs into two-cell embryos. Extracellular Ca2+ is apparently unnecessary for the attachment of spermatozoa to the zona and egg surfaces, decondensation of the sperm nucleus, and the development of sperm and egg pronuclei within the egg. These results were compared with data obtained in other species such as the sea urchin, mouse, rat and guinea pig." @default.
- W2080321640 created "2016-06-24" @default.
- W2080321640 creator A5024596573 @default.
- W2080321640 date "1982-01-01" @default.
- W2080321640 modified "2023-09-23" @default.
- W2080321640 title "Requirement of extracellular calcium ions for various stages of fertilization and fertilization-related phenomena in the hamster" @default.
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