title: Dynamic control of lateral root positioning.
abstract: In dicot root systems, lateral roots are in general regularly spaced along the longitudinal axis of the primary root to facilitate water and nutrient uptake. Recently, recurrent programmed cell death in the root cap of the growing root has been implicated in lateral root spacing. The root cap contains an auxin source that modulates lateral root patterning. Periodic release of auxin by dying root cap cells seems to trigger lateral root specification at regular intervals. However, it is currently unclear through which molecular mechanisms auxin restricts lateral root specification to specific cells along the longitudinal and radial axes of the root, or how environmental signals impact this process.
authors.affiliation: Department of Plant Systems Biology, VIB, Technologiepark 927, B-9052 Ghent, Belgium; Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, B-9052 Ghent, Belgium.
authors.forename: Barbara K
authors.initials: BK
authors.lastname: Möller
authors.affiliation: State Key Laboratory of Crop Genetics and Germplasm Enhancement and MOA Key Laboratory of Plant Nutrition and Fertilization in Lower-Middle Reaches of the Yangtze River, Nanjing Agricultural University, Weigang No. 1, Nanjing 210095, PR China.
authors.forename: Wei
authors.initials: W
authors.lastname: Xuan
authors.affiliation: Department of Plant Systems Biology, VIB, Technologiepark 927, B-9052 Ghent, Belgium; Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, B-9052 Ghent, Belgium. Electronic address: tobee@psb.vib-ugent.be.
authors.forename: Tom
authors.initials: T
authors.lastname: Beeckman
mesh_terms: D017360:Arabidopsis / Q000254:growth & development*; D018522:Gravitropism; D018518:Plant Root Cap / Q000254:growth & development; D018517:Plant Roots / Q000254:growth & development*; D018523:Tropism; D014867:Water / Q000502:physiology
chemical_list: D014867:Water