Focus on Activation, Regulation, and Evolution of MTI and ETI
2019
John M. McDowell
Plants perceive a variety of molecules produced by microbes, insects, and nematodes. These pathogen-derived components include so-called microbe-associated molecular patterns, or MAMPs, as well as effector proteins that are secreted to the exterior or interior of plant cells and these molecules can be recognized by receptor protein complexes on the exterior or interior of plant cells, thereby activating MAMP- or effector-triggered immunity (MTI or ETI, respectively). Because these processes are key components of plant disease resistance, they have been studied intensively. We are now in a golden age of ETI and MTI research, in which mechanistic and evolutionary understanding of both processes is emerging rapidly. Accordingly, in this Focus issue, we explore diverse aspects of MTI and ETI, with a unifying theme of integration at multiple levels.Additional content is available on the Focus on Activation, Regulation, and Evolution of MTI and ETI.Mitogen-Activated Protein Kinase Phosphatase 1 (MKP1) Negatively Regulates the Production of Reactive Oxygen Species During Arabidopsis Immune ResponsesDevelopment of a Pseudomonas syringae–Arabidopsis Suspension Cell Infection System for Investigating Host Metabolite-Dependent Regulation of Type III Secretion and Pattern-Triggered ImmunityDirect Regulation of the EFR-Dependent Immune Response by Arabidopsis TCP Transcription FactorsConvergent Evolution of Effector Protease Recognition by Arabidopsis and Barley
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