Molecular organization of the plasma membrane in the post-acrosomal region of some farm animals.
According to the distribution of IMP, three different regions can be recognized on PF of the post-acrosomal plasma membrane of bull, ram, and boar spermatozoa. They are: (1) a region with linear aggregation of IMP, (2) a region with fewer and scattered IMP, and (3) a region with more numerous IMP. In the last two regions IMPs are randomly distributed or a clustering of certain particles is visible. In stallion spermatozoa the last two areas are undistinguishable. There are evident interspecies differences in the arrangement of linear aggregations of IMP which are characteristic for each species.
Massanyi
L
L
University of Agriculture, Department of Physiology and Anatomy, Nitra, Czechoslovakia.
Janisch
R
R
D000177:Acrosome / Q000648:ultrastructure*; D000818:Animals; D002417:Cattle; D002462:Cell Membrane / Q000648:ultrastructure*; D005614:Freeze Fracturing; D006736:Horses; D008297:Male; D008854:Microscopy, Electron; D012756:Sheep; D013094:Spermatozoa / Q000648:ultrastructure*; D013552:Swine