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Lipidic staining of the anther and pollen in wild type and dpw2 mutants. A to C, Comparison of Sudan Red 7B staining of anthers at stage 12. D to F, Cross sectioning of stage 12 anthers stained with Sudan Red 7B. G to I, Dissection of pollen grains from anthers after staining with Sudan Red 7B. DP, Defective pollen; E, epidermis; MP, mature pollen; T, tapetum. Bars = 500 µm in A to C, 50 µm in D to F, and 10 µm in G to I.
