9 + 0 IMMOTILE SPERMATOZOA IN AN INFERTILE MAN

  • 1 January 1979
    • journal article
    • research article
    • Vol. 11  (6) , 437-443
Abstract
The peculiar case of an infertile man, possessing normally shaped, but stiff and immotile spermatozoa is described. All the sperm are conventionally structured, with the constant characteristic of the absence of central tubules and projections forming the so-called central sheath. Electrophoretic analysis of the high MW polypeptide chains attributed to dyneins shows the constant absence of 1 chain. The importance of the central structures, usually belonging to the 9 + 2 model spermatozoa, and the possible localization of a dynein chain in this region are discussed.