title: Rice WUSCHEL-related homeobox 3A (OsWOX3A) modulates auxin-transport gene expression in lateral root and root hair development.
abstract: Coordinated regulation of the many genes controlling leaf, flower, and root development determines the phenotypes of plants; this regulation requires exquisite control of many transcription factors, including the WUSCHEL-related homeobox (WOX) family. We recently reported that rice (Oryza sativa) WUSCHEL-related homeobox 3A (OsWOX3A) plays important roles in organ development, including lateral-axis outgrowth and vasculature patterning in leaves, lemma and palea morphogenesis in spikelets, and the numbers of tillers and lateral roots. OsWOX3A is encoded by NARROW LEAF2 (NAL2) and NAL3, a pair of duplicated genes. In this study, further analysis of nal2 nal3 (hereafter nal2/3) double mutants revealed that, in addition to its role in lateral root development, OsWOX3A also acts in the control of root hair formation. Based on this new finding, we describe a possible mechanism by which OsWOX3A regulation of auxin transport genes acts in root development.
authors.forename: Soo-Cheul
authors.initials: SC
authors.lastname: Yoo
authors.forename: Sung-Hwan
authors.initials: SH
authors.lastname: Cho
authors.forename: Nam-Chon
authors.initials: NC
authors.lastname: Paek
mesh_terms: D018506:Gene Expression Regulation, Plant; D005801:Genes, Homeobox / Q000502:physiology; D012275:Oryza / Q000235:genetics / Q000378:metabolism*; D010940:Plant Proteins / Q000378:metabolism*; D018517:Plant Roots / Q000235:genetics / Q000378:metabolism*; D030821:Plants, Genetically Modified / Q000235:genetics / Q000378:metabolism*
chemical_list: D010940:Plant Proteins