title: Shoot meristem function and leaf polarity: the role of class III HD-ZIP genes.
abstract: The shoot apical meristem comprises an organized cluster of cells with a central region population of self-maintaining stem cells providing peripheral region cells that are recruited to form differentiated lateral organs. Leaves, the principal lateral organ of the shoot, develop as polar structures typically with distinct dorsoventrality. Interdependent interactions between the meristem and developing leaf provide essential cues that serve both to maintain the meristem and to pattern dorsoventrality in the initiating leaf. A key component of both processes are the class III HD-ZIP genes. Current findings are defining the developmental role of members of this family and are identifying multiple mechanisms controlling expression of these genes.
authors.forename: Mary E
authors.initials: ME
authors.lastname: Byrne
mesh_terms: D029681:Arabidopsis Proteins / Q000235:genetics*; D018507:Gene Expression Regulation, Developmental; D018506:Gene Expression Regulation, Plant; D018398:Homeodomain Proteins / Q000235:genetics*; D018519:Meristem / Q000254:growth & development*; D009024:Morphogenesis; D018515:Plant Leaves / Q000166:cytology / Q000254:growth & development; D018520:Plant Shoots / Q000166:cytology* / Q000254:growth & development; D014157:Transcription Factors / Q000235:genetics
chemical_list: D029681:Arabidopsis Proteins; C493946:HD-Zip protein, Arabidopsis; D018398:Homeodomain Proteins; D014157:Transcription Factors