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Summary

The patterns of redistribution of two classes of Golgi derived cell surface antigens recognised by monoclonal antibodies JIM1 and JIM7, after the treatment of roots with Brefeldin A (BFA) are described. The results for these secretory products are compared with those previously reported for Golgi membrane epitopes recognised by JIM 84. The preliminary results described here demonstrate that the combination of immunocytochemical techniques with drug induced perturbation of secretory pathways will be invaluable in enhancing our understanding of the pathways of intracellular trafficking in plants.