首页|Immunobiodiversity:Conserved and specific immunity across land plants and beyond
Immunobiodiversity:Conserved and specific immunity across land plants and beyond
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Angiosperms represent most plants that humans cultivate,grow,and eat.However,angiosperms are only one of five major land plant lineages.As a whole lineage,plants also include algal groups.All these clades repre-sent a tremendous genetic diversity that can be investigated to reveal the evolutionary history of any given mechanism.In this review,we describe the current model of the plant immune system,discuss its evolution based on the recent literature,and propose future directions for the field.In angiosperms,plant-microbe in-teractions have been intensively studied,revealing essential cell surface and intracellular immune receptors,as well as metabolic and hormonal defense pathways.Exploring diversity at the genomic and functional levels demonstrates the conservation of these pathways across land plants,some of which are beyond plants.On basis of the conserved mechanisms,lineage-specific variations have occurred,leading to diversified reser-voirs of immune mechanisms.In rare cases,this diversity has been harnessed and successfully transferred to other species by integration of wild immune receptors or engineering of novel forms of receptors for improved resistance to pathogens.We propose that exploring further the diversity of immune mechanisms in the whole plant lineage will reveal completely novel sources of resistance to be deployed in crops.
evolutionMPMIimmunityplantevoMPMIsymbiosis
Baptiste Castel、Karima El Mahboubi、Christophe Jacquet、Pierre-Marc Delaux
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Laboratoire de Recherche en Sciences Végétales(LRSV),Université de Toulouse,CNRS,UPS,Toulouse INP,Castanet-Tolosan,France
ANR LevelupResearch performed at LRSV is supported by the"Laboratoires d'Excellence(LABEX)"TULIP
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