Plant cell wall-mediated disease resistance:Current understanding and future perspectives  

作　　者：Antonio Molina Lucıa Jorda Miguel Angel Torres Marina Martın-Dacal Diego Jose Berlanga Patricia Fernandez-Calvo Elena Gomez-Rubio Sonsoles Martın-Santamarıa 

机构地区：[1]Centro de Biotecnología y Genómica de Plantas,Universidad Politécnica de Madrid(UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria(INIA/CSIC),Campus de Montegancedo UPM,Pozuelo de Alarcon(Madrid),Spain [2]Departamento de Biotecnologıa-Biología Vegetal,Escuela Técnica Superior de Ingenierıa Agronomica,Alimentarıa y de Biosistemas,UPM,Madrid,Spain [3]Centro de Investigaciones Biologicas Margarita Salas,Consejo Superior de Investigaciones Científicas(CSIC),Ramiro de Maeztu 9,28040 Madrid,Spain [4]Misión Biológica de Galicia,Consejo Superior de Investigaciones Científicas(CSIC),Campus de Montegancedo UPM,Pozuelo de Alarcón(Madrid),Spain

出　　处：《Molecular Plant》2024年第5期699-724,共26页分子植物（英文版）

基　　金：supported by grant PID2021-126006OB-I00 to A.M.and L.J.;grant PID20220-113588RB-I00 to S.M.-S;funded by MCIN/AEI/10.13039/501100011033;by ERDF A way of making Europe.D.J.B.;supported by PRE2019-091276 and P.F.-C.by postdoctoral fellowships financially supported by the Severo Ochoa Program for Centres of Excellence in R&D(grants SEV-2016-0672 and CEX2020-000999-S);funded by MCIN/AEI/10.13039/501100011033.M.M.-D.was recipient of PhD fellow(PRE2019-08812);funded by MCIN/AEI/10.13039/501100011033.E.G.-R;was supported by Autonomous Region of Madrid fellowship(S2017/BMD-3673);the European Commission-Next Generation EU(Regulation EU2020/2094)through CSIC’s Global Health Platform PTI Salud Global.

摘　　要：Beyond their function as structural barriers,plant cell walls are essential elements for the adaptation of plants to environmental conditions.Cell walls are dynamic structures whose composition and integrity can be altered in response to environmental challenges and developmental cues.These wall changes are perceived by plant sensors/receptors to trigger adaptative responses during development and upon stress perception.Plant cell wall damage caused by pathogen infection,wounding,or other stresses leads to the release of wall molecules,such as carbohydrates(glycans),that function as damage-associated molecular patterns(DAMPs).DAMPs are perceived by the extracellular ectodomains(ECDs)of pattern recognition receptors(PRRs)to activate pattern-triggered immunity(PTI)and disease resistance.Similarly,glycans released from the walls and extracellular layers of microorganisms interacting with plants are recognized as microbe-associated molecular patterns(MAMPs)by specific ECD-PRRs triggering PTI responses.The number of oligosaccharides DAMPs/MAMPs identified that are perceived by plants has increased in recent years.However,the structural mechanisms underlying glycan recognition by plant PRRs remain limited.Currently,this knowledge is mainly focused on receptors of the LysM-PRR family,which are involved in the perception of various molecules,such as chitooligosaccharides from fungi and lipo-chitooligosaccharides(i.e.,Nod/MYC factors from bacteria and mycorrhiza,respectively)that trigger differential physiological responses.Nevertheless,additional families of plant PRRs have recently been implicated in oligosaccharide/polysaccharide recognition.These include receptor kinases(RKs)with leucine-rich repeat and Malectin domains in their ECDs(LRR-MAL RKs),Catharanthus roseus RECEPTOR-LIKE KINASE 1-LIKE group(CrRLK1L)with Malectin-like domains in their ECDs,as well as wall-associated kinases,lectin-RKs,and LRR-extensins.The characterization of structural basis of glycans recognition by these new plant receptors will shed light

关 键 词：Arabidopsis thaliana cell wall damage-associated molecular patterns DAMPS disease resistance GLYCANS OLIGOSACCHARIDES pattern-triggered immunity PTl pattern recognition receptor PRRs 

分 类 号：Q94[生物学—植物学]