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Histochemical localization of GUS activity in germinating tomato seeds and pollen. Tomato plants were transformed with the Δgen1.1/GUS construct. A through C, F1 seeds at various stages of germination assayed for GUS activity. D and E, Pollen harvested from dehisced anthers and germinated in vitro. Bar in A through C = 1 mm; bar in D = 0.1 mm; bar in E = 0.01 mm.
