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New Phytol. 2018 Jul;219(1):17-24. doi: 10.1111/nph.14877. Epub 2017 Nov 13.

Multiple strategies for pathogen perception by plant immune receptors.

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Institut National de la Recherche Agronomique, UMR de Biologie et Génétique des Interactions Plante-Pathogènes, TA A-54/K Campus International de Baillarguet, 34398, Montpellier Cedex 5, France.


Contents Summary 17 I. Introduction 17 II. Pathogen perception by NLRs: from direct recognition to integrated decoys 18 III. Multiple activation and signaling pathways for NLRs 18 IV. How to engineer NLR-mediated disease resistance? 21 V. Conclusion 23 Acknowledgements 23 References 23 SUMMARY: Plants have evolved a complex immune system to protect themselves against phytopathogens. A major class of plant immune receptors called nucleotide-binding domain and leucine-rich repeat-containing proteins (NLRs) is ubiquitous in plants and is widely used for crop disease protection, making these proteins critical contributors to global food security. Until recently, NLRs were thought to be conserved in their modular architecture and functional features. Investigation of their biochemical, functional and structural properties has revealed fascinating mechanisms that enable these proteins to perceive a wide range of pathogens. Here, I review recent insights demonstrating that NLRs are more mechanistically and structurally diverse than previously thought. I also discuss how these findings provide exciting future prospects to improve plant disease resistance.


NLR protein; effector; engineering; immune receptor; pathogen recognition

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