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ACROSOME BREAKDOWN IN LEPTODACTYLUS CHAQUENSIS (AMPHIBIA ANURA) SPERMATOZOA *
Author(s) -
RAISMAN JORGE S.,
CUNIO RITA W.,
CABADA MARCELO O.,
PINO ENRIQUE J.,
MARIANO MARTA I.
Publication year - 1980
Publication title -
development, growth and differentiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.864
H-Index - 66
eISSN - 1440-169X
pISSN - 0012-1592
DOI - 10.1111/j.1440-169x.1980.00289.x
Subject(s) - acrosome , sperm , tonicity , andrology , acrosome reaction , incubation , biology , chemistry , botany , biochemistry , medicine
Acrosome breakdown in Leptodactylus chaquensis is described: during this process acrosome enlarges, becomes round‐shaped and finally disrupts. Low tonicity media (0.025 M sucrose and 1/10 Holtfreter's solutions) favor acrosome breakdown and sperm fertility loosing. High tonicity media (0.250 M sucrose and Holtfreter's solutions) maintain acrosomes in an unreacted stage and sperm fertilizing capacity is preserved. Sperm motility does not seem to be a sufficient condition for the sperm to fertilize and also does not seem to be related with acrosome breakdown. The presence of lectins in the incubation media does not modify the time‐course of acrosome breakdown.