Apple leaf cell walls labeled with Alexa Fluor® 488 goat anti–rabbit IgG antibody conjugate.

The primary cell walls in a 500 nm–thick apple leaf section identified with an antibody to the methyl-esterified regions of pectic polysaccharides or pectin, and visualized with green-fluorescent Alexa Fluor® 488 goat anti–rabbit IgG antibody (Cat. No. A11008). The orange regions inside the cells are due to the autofluorescent properties of chlorophyll localized in the chloroplasts. Image contributed by Paul Sutherland, EM Unit, Mount Albert Research Centre, Auckland, New Zealand.

The primary cell walls in a 500 nm–thick apple leaf section identified with an antibody to the methyl-esterified regions of pectic polysaccharides or pectin, and visualized with green-fluorescent Alexa Fluor® 488 goat anti–rabbit IgG antibody (Cat. No. A11008). The orange regions inside the cells are due to the autofluorescent properties of chlorophyll localized in the chloroplasts. Image contributed by Paul Sutherland, EM Unit, Mount Albert Research Centre, Auckland, New Zealand.

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