COATED MEMBRANES IN BLOOD-PLATELETS

  • 1 January 1982
    • journal article
    • research article
    • Vol. 26  (2) , 315-318
Abstract
The simultaneous addition of alcian blue and tannic acid to human blood platelets during glutaraldehyde fixation lead to an excellent representation of coated membranes (CM). CM segments were found in plasmalemma, vesicle system and lysosomal granules, or as coated pits or coated vesicles. They possessed the same morphological properties as animal cells. An increased number of coated membranes was observed in platelets which were stimulated with ADP. The role played by CM remains unsolved in contrast to the role of other endomembranes in platelets.