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(A) In nine-day-old seedlings, GUS activity was detectable at the shoot apex meristem (SAM), node-joint, and roots. (B) GUS activity in the rosette axils of 24-day-old plants. The insets on the top right corner indicate the megascopic rosette. (D) Weak GUS activity in the SAM and floral buds at flowering, and (E) a zoomed-in view of the stained floral buds.
