ACABDBC5Keywords:Pest, Plant resistance,Salicylic acid, Pesticide, Molecular breeding.Keywords;•Mycorrhizalsymbiosis•Plantnutrition•Soilbiology•Plantmoleculargenetics•CellbiologyoffungiLossofcropproductioncausedbypathogensisoneofthemostseriousproblemsinagriculture.LaboratoryofPlantPathologyaimstocreatenovelpest-controltechnologies.Forthispurpose,wearestudyingmolecularmechanismsunderlyingplantresistancetopathogenswithaspecialfocusonsalicylicacid(SA),aplantendogenoussignalingmoleculewhichregulatesplantdefenseresponse.ElucidationofmolecularmechanismsunderlyingSAbiosynthesisand/orsignalingcanleadtomolecularbreedingofapathogen-resistantplant,andtoproductionofanovelpesticidewhichissaferthancurrentones.Maintainingsoilfertilityisoneofthemostsignificantaspectsofsustainableagriculture.However,declineinsoilfertilityoccursallovertheworld.Inourlaboratory,wefocusonthefunctionsofmycorrhizalandnodulesymbiosesinplant-microbesinteractions,whichcontributetoplantnutrition,andareinterestedinapplicationsofthesesymbiosestoagriculturalproduction.ElucidationofmolecularmechanismsbywhichplantsproduceSAandresisttopathogensElucidationofmechanismsunderlyingenergy-savingstressresponsesofplantsProductionofaSA-basednovelpesticidewhichissaferthancurrentonesPhosphorus cycling in agro-ecosystems from the viewpoint of mycorrhizal symbiosis Molecularbreedingofapathogen-resistantplantusingSAsynthesismechanismMolecular mechanisms underlying mineral transfer in arbuscular mycorrhizal symbiosisMolecular genetics of arbuscular mycorrhizal symbiosis and root nodule symbiosis using model legume plantsMass production of arbuscular mycorrhizal fungi and utilization of them for crop production(L)Salicylicacid(SA).(R)Wildtype(A)isresistant,butSA-deficientmutant(D)issusceptibletopathogen(PlantCell11:1393–1404,1999).Trying to clarify SA synthesis mechanisms.Root nodule and mycorrhizal symbioses.Experiments on plant-microbe interactions.Shinpei KATOUAssociate Professor, Ph.D.KatsuharuSAITOAssociateProfessor,Ph.D.Salicylic acidCOOHOHIntegratedBioscience DivisionIntegrated Bioscience DivisionLaboratory of Plant PathologyLaboratory of Soil Biology
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