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Histochemical analyses of GUS activity in Arabidopsis plants expressing the GUS gene under the control of the CLA1 gene promoter. A, Water-imbibed (48-h) germinating seeds; B, 3-d-old seedlings; C, 5-d-old seedlings; D, 15-d-old seedlings; E, immature seeds and siliques from Arabidopsis; F, transverse section of the inflorescence; G, fully developed Arabidopsis flower; and H, individual stigma and anthers from a fully developed Arabidopsis flower.
