Effect of 1-Methyladenine on Responses of Spermatozoa to Egg Jelly in Starfish : A Convenient Method for Counting the Rate of Acrosome Reaction and for Measuring Sperm Motility

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The effect of 1-methyladenine (1-MeAde) on the responses of spermatozoa to egg jelly in Asterina pectinifera was investigated. 1-MeAde-treated spermatozoa underwent acrosome reaction of a higher rate than non-treated ones when they were incubated in sea water containing homologous egg jelly. A method for measuring acrosome reaction retes by means of a light microscope was established. For measuring sperm motility, paths of sperm swimming in dark field microscopy were photographed. Spermatozoa taken from testes previously treated with 1-MeAde decreased their beat frequency when they were diluted with sea water or with sea water containing egg jelly compared with non-treated ones. These facts indicate that 1-MeAde exerts an effect on some activities of spermatozoa as well as inducing maturation of oocytes.
社団法人日本動物学会の論文
1982-09-25