You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Influence of Some External Factors on the Acrosome Reaction in the Spermatozoa of Homarus americanus Milne-Edwards, 1837
Tereza C. V. Gesteira and K. Halcrow
Journal of Crustacean Biology
Vol. 8, No. 3 (Aug., 1988), pp. 317-321
Stable URL: http://www.jstor.org/stable/1548270
Page Count: 5
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Four experiments were performed to determine the effects of external Ca++, L-cysteine, ammonia, and contact with glass surfaces on the acrosome reaction of spermatozoa of Homarus americanus. Few of the spermatozoa incubated in Ca++-free sea water or in sea water containing L-cysteine showed an acrosome reaction. Many acrosome reactions were observed among spermatozoa incubated in sea water containing Ca++ or ammonia and also when Ca++ was added to spermatozoa suspended in Ca++-free sea water. It is concluded that Ca++ plays an important role in this lobster's acrosome reaction. Incidences of acrosome reactions were higher in suspensions of spermatozoa in Ca++-free sea water that were agitated than in those that were not agitated.
Journal of Crustacean Biology © 1988 Brill