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Pollen phenotype of wild type, gum1, and mud1. Mature pollen of wild type (a and d), gum1 (b and e), and mud1 (c and f) stained with DAPI. Optical confocal laser scanning microscopy (CLSM) sections of mature pollen from wild type (g), gum1 (h), and mud1 (i) stained with ethidium bromide.
