FD, a bZIP protein mediating signals from the floral pathway integrator FT at the shoot apex.
FLOWERING LOCUS T (FT) is a conserved promoter of flowering that acts downstream of various regulatory pathways, including one that mediates photoperiodic induction through CONSTANS (CO), and is expressed in the vasculature of cotyledons and leaves. A bZIP transcription factor, FD, preferentially expressed in the shoot apex is required for ... FT to promote flowering. FD and FT are interdependent partners through protein interaction and act at the shoot apex to promote floral transition and to initiate floral development through transcriptional activation of a floral meristem identity gene, APETALA1 (AP1). FT may represent a long-distance signal in flowering.
Mesh Terms:
Arabidopsis, Arabidopsis Proteins, Cell Nucleus, Cotyledon, Flowers, Gene Expression, Gene Expression Regulation, Plant, Genes, Plant, Homeodomain Proteins, MADS Domain Proteins, Meristem, Morphogenesis, Mutation, Phenotype, Plant Leaves, Plant Proteins, Plant Shoots, Protein Interaction Mapping, Recombinant Fusion Proteins, Signal Transduction, Transcription Factors, Transcriptional Activation
Arabidopsis, Arabidopsis Proteins, Cell Nucleus, Cotyledon, Flowers, Gene Expression, Gene Expression Regulation, Plant, Genes, Plant, Homeodomain Proteins, MADS Domain Proteins, Meristem, Morphogenesis, Mutation, Phenotype, Plant Leaves, Plant Proteins, Plant Shoots, Protein Interaction Mapping, Recombinant Fusion Proteins, Signal Transduction, Transcription Factors, Transcriptional Activation
Science
Date: Aug. 12, 2005
PubMed ID: 16099979
View in: Pubmed Google Scholar
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