The Morphology and Physiology of the Acrosome Reaction in the Sperm of the Decapod, Sicyonia ingentis

Sperm of the shrimp, Sicyonia ingentis, undergo a biphasic acrosome reaction consisting of acrosomal exocytosis and acrosomal filament formation. These events are temporally separated by 10–20 min, in vivo. Using egg water preparations the complete reaction can be induced, in vitro, albeit the tempo...

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Published inDevelopment, growth & differentiation Vol. 30; no. 5; pp. 451 - 462
Main Authors CLARK, W. H., GRIFFIN, F. J.
Format Journal Article
LanguageEnglish
Published Oxford, UK Blackwell Publishing Ltd 01.10.1988
Japanese Society of Developmental Biologists
Subjects
acrosomes
Biological and medical sciences
Crustacea
Early stages. Segmentation. Gastrulation. Neurulation
Embryology: invertebrates and vertebrates. Teratology
Fundamental and applied biological sciences. Psychology
Invertebrates
Life cycle. Embryology. Development
Marine
Physiology. Development
Sicyonia ingentis
Crustacea
Marine environment
Gamete
Spermatozoa
Calcium
Ultrastructure
Arthropoda
Cell cell interaction
Acrosome reaction
Invertebrata
Fecundation
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Summary:Sperm of the shrimp, Sicyonia ingentis, undergo a biphasic acrosome reaction consisting of acrosomal exocytosis and acrosomal filament formation. These events are temporally separated by 10–20 min, in vivo. Using egg water preparations the complete reaction can be induced, in vitro, albeit the temporal separation of the two phases is lengthened. External Ca++ is required for the exocytotic phase, while a cytoplasmic acidification and K+ efflux are associated with polymerization of the acrosomal filament.
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ISSN:0012-1592
1440-169X
DOI:10.1111/j.1440-169X.1988.00451.x