develops from capable of orthochromatic erythroblast reticulocyte MESH:D012156 An immature erythrocyte that changes the protein composition of its plasma membrane by exosome formation and extrusion. The types of protein removed differ between species though removal of the transferrin receptor is apparent in mammals and birds. BTO:0001173 CALOHA:TS-0864 erythroid lineage cell extracellular exosome assembly