title: Plant signaling: notes from the underground.
abstract: New studies combining genetic and grafting approaches in Arabidopsis provide evidence that a carotenoid derivative is a novel plant signaling molecule through which roots can influence shoot branching and leaf development.
authors.affiliation: Yale University, Department of Molecular, Cellular and Developmental Biology, New Haven, Connecticutt 06520-8104, USA.
authors.forename: Timothy
authors.initials: T
authors.lastname: Nelson
mesh_terms: D017360:Arabidopsis / Q000254:growth & development* / Q000502:physiology; D029681:Arabidopsis Proteins / Q000378:metabolism*; D002352:Carrier Proteins / Q000378:metabolism; D049308:Dioxygenases / Q000378:metabolism; D018517:Plant Roots / Q000502:physiology*; D018520:Plant Shoots / Q000254:growth & development*; D015398:Signal Transduction / Q000502:physiology*
chemical_list: D029681:Arabidopsis Proteins; D002352:Carrier Proteins; D049308:Dioxygenases