title: The regulation and plasticity of root hair patterning and morphogenesis.
abstract: Root hairs are highly specialized cells found in the epidermis of plant roots that play a key role in providing the plant with water and mineral nutrients. Root hairs have been used as a model system for understanding both cell fate determination and the morphogenetic plasticity of cell differentiation. Indeed, many studies have shown that the fate of root epidermal cells, which differentiate into either root hair or non-hair cells, is determined by a complex interplay of intrinsic and extrinsic cues that results in a predictable but highly plastic pattern of epidermal cells that can vary in shape, size and function. Here, we review these studies and discuss recent evidence suggesting that environmental information can be integrated at multiple points in the root hair morphogenetic pathway and affects multifaceted processes at the chromatin, transcriptional and post-transcriptional levels.
authors.affiliation: Institute of Plant and Microbial Biology, Academia Sinica, Taipei 11529, Taiwan.
authors.forename: Jorge E
authors.initials: JE
authors.lastname: Salazar-Henao
authors.affiliation: Institute of Plant and Microbial Biology, Academia Sinica, Taipei 11529, Taiwan.
authors.forename: Isabel Cristina
authors.initials: IC
authors.lastname: Vélez-Bermúdez
authors.affiliation: Institute of Plant and Microbial Biology, Academia Sinica, Taipei 11529, Taiwan wosh@gate.sinica.edu.tw.
authors.forename: Wolfgang
authors.identifier: 0000-0002-7850-6832
authors.initials: W
authors.lastname: Schmidt
mesh_terms: D019521:Body Patterning; D019070:Cell Lineage; D000066670:Cell Plasticity; D004777:Environment; D009024:Morphogenesis; D018517:Plant Roots / Q000166:cytology / Q000196:embryology*
keywords: Auxin; Cell fate; Chromatin remodeling; Phenotypic plasticity; Phosphate deficiency; Root hairs; Strigolactones