SHORTROOT-Mediated Intercellular Signals Coordinate Phloem Development in Arabidopsis Roots
Hyoujin Kim, Jing Zhou, Deepak Kumar, Geupil Jang, Kook Hui Ryu, José Sebastián, Shunsuke Miyashima, Ykä Helariutta, Ji‐Young Lee
Abstract
), and these three together form a positive feedforward loop. Under this regulatory scheme, NARS1, generated in the CCs of the root differentiation zone, establishes a top-down signal that drives the ACD for phloem SEs in the meristem. SND2 appears to function downstream to amplify NARS1 via positive feedback. This new regulatory mechanism expands our understanding of the sophisticated vascular tissue patterning processes occurring during postembryonic root development.plantcell;32/5/1519/FX1F1fx1.
Topics & Concepts
PhloemArabidopsisMeristemBiologyArabidopsis thalianaCell biologyVascular tissueEndodermisTranscription factorBotanyCell divisionLateral rootCellGeneGeneticsMutantShootPlant Molecular Biology ResearchPlant nutrient uptake and metabolismPolysaccharides and Plant Cell Walls