title: Beneficial Microbes Affect Endogenous Mechanisms Controlling Root Development.
abstract: Plants have incredible developmental plasticity, enabling them to respond to a wide range of environmental conditions. Among these conditions is the presence of plant growth-promoting rhizobacteria (PGPR) in the soil. Recent studies show that PGPR affect Arabidopsis thaliana root growth and development by modulating cell division and differentiation in the primary root and influencing lateral root development. These effects lead to dramatic changes in root system architecture that significantly impact aboveground plant growth. Thus, PGPR may promote shoot growth via their effect on root developmental programs. This review focuses on contextualizing root developmental changes elicited by PGPR in light of our understanding of plant-microbe interactions and root developmental biology.
authors.affiliation: Plant-Microbe Interactions, Department of Biology, Faculty of Science, Utrecht University, Padualaan 8, 3584CH Utrecht, The Netherlands.
authors.forename: Eline H
authors.initials: EH
authors.lastname: Verbon
authors.affiliation: Department of Biology, Duke University, Durham, NC 27708, USA. Electronic address: louisa.liberman@duke.edu.
authors.forename: Louisa M
authors.initials: LM
authors.lastname: Liberman
mesh_terms: D001419:Bacteria / Q000378:metabolism*; D064307:Microbiota; D063245:Plant Development; D018517:Plant Roots / Q000254:growth & development* / Q000382:microbiology*; D012231:Rhizobium / Q000502:physiology; D058441:Rhizosphere
keywords: Arabidopsis thaliana; hormonal signaling; plant growth-promoting rhizobacteria; rhizosphere; root development