title: Mycorrhiza-induced resistance: more than the sum of its parts?
abstract: Plants can develop an enhanced defensive capacity in response to infection by arbuscular mycorrhizal fungi (AMF). This 'mycorrhiza-induced resistance' (MIR) provides systemic protection against a wide range of attackers and shares characteristics with systemic acquired resistance (SAR) after pathogen infection and induced systemic resistance (ISR) following root colonisation by non-pathogenic rhizobacteria. It is commonly assumed that fungal stimulation of the plant immune system is solely responsible for MIR. In this opinion article, we present a novel model of MIR that integrates different aspects of the induced resistance phenomenon. We propose that MIR is a cumulative effect of direct plant responses to mycorrhizal infection and indirect immune responses to ISR-eliciting rhizobacteria in the mycorrhizosphere.
authors.affiliation: Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK.
authors.forename: Duncan D
authors.initials: DD
authors.lastname: Cameron
authors.forename: Andrew L
authors.initials: AL
authors.lastname: Neal
authors.forename: Saskia C M
authors.initials: SC
authors.lastname: van Wees
authors.forename: Jurriaan
authors.initials: J
authors.lastname: Ton
mesh_terms: D060467:Disease Resistance / Q000276:immunology*; D008954:Models, Biological; D038821:Mycorrhizae / Q000502:physiology*; D010935:Plant Diseases / Q000276:immunology* / Q000382:microbiology*; D053147:Plant Exudates / Q000378:metabolism; D057865:Plant Immunity
chemical_list: D053147:Plant Exudates