Eksempler på starfish

• Egg-jelly signal molecules for triggering the acrosome reaction in starfish spermatozoa.

• Moreover, the starfish seminal fluid has a slightly higher osmolality.

• Procedures for induction of spawning development of starfish oocytes.

• Formation of the fertilization membrane by insemination of immature starfish oocytes pretreated with calcium-free sea water.

• Shortening of microvilli during the maturation of starfish oocyte from which vitelline coat was removed.

• Egg signals for triggering the acrosome reaction in starfish spermatozoa.

• Marked decrease in the rigidity of starfish oocytes induced by 1-methyladenine.

• Absence of 1-methyladenine production in follicle cells obtained from starfish ovaries in the postspawning season.