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Immunolocalization of expansin and XTH epitopes in the AZs of mature green (MG) and over-ripe (OR) fruit pedicels. Longitudinal sections of MG fruit pedicels, including the AZ, were stained with the anti-expansin and anti-xyloglucan antibodies. Micrographs show the negative control without the first antibody step. Arrowheads indicate the AZs. Bar = 0.5 mm.
