Current biology : CB
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Current biology : CB · May 2004
Comparative StudyCompetence to respond to floral inductive signals requires the homeobox genes PENNYWISE and POUND-FOOLISH.
The transition from vegetative to reproductive development establishes new growth patterns required for flowering. This switch is controlled by environmental and/or intrinsic developmental cues that converge at the shoot apical meristem (SAM). ⋯ These double mutants are completely unable to flower even though the SAM displays morphological and molecular changes that are consistent with having received floral inductive signals. These studies establish a link between the competence to receive floral inductive signals and restructuring of the SAM during floral evocation.