while using horseradish peroxidase conjugated to the plant lectin wheat germ agglutinin ( wga-hrp ) as an anterograde marker to label the developing retinofugal projection in the chick , we have found that a significant amount of the tracer can escape from the axons and axon terminals of retinal ganglion cells and be subsequently taken up and transported both anterogradely and retrogradely by neighboring neurons and/or axon terminals .
C0019941
horseradish peroxidase
C0078473
wga-hrp