Mycorrhiza-induced resistance: More than the sum of its parts?

D.D. Cameron, A.L. Neal, S.C.M. van Wees, J. Ton

Research output: Contribution to journalComment/debatepeer-review


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.
Original languageEnglish
Pages (from-to)539-545
Number of pages7
JournalTrends in Plant Science
Issue number10
Early online date19 Jul 2013
Publication statusPublished - 1 Oct 2013


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