農学部研究紹介英語版2018-2019

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OH COOH Laboratory of Plant Pathology Shinpei KATOU Associate Professor Keywords: Pest, Plant resistance, Salicylic acid, Pesticide, Molecular breeding. Loss of crop production by pathogens is one of most serious problems in agriculture. Laboratory of plant pathology aims to create novel pest-control technologies. For this purpose, we are studying molecular mechanisms underlying plant resistance to pathogens with a special focus on salicylic acid (SA), a plant endogenous signaling molecule which regulates plant defense response. Elucidation of molecular mechanisms underlying SA biosynthesis and/or signaling can lead to molecular breeding of a pathogen-resistant plant, and to production of a novel pesticide which is safer than current ones. Elucidation of molecular mechanisms by which plants produce SA and resist to pathogens Trying to clarify SA synthesis mechanisms. Elucidation of mechanisms underlying energy-saving stress responses of plants Molecular breeding of a pathogen-resistant plant using SA synthesis mechanism Integrated Bioscience Division (L) Salicylic acid (SA). (R) Wild type (A) is resistant, but SA-deficient mutant (D) is susceptible to pathogen (Plant Cell 11: 1393–1404, 1999). Salicylic acid Production of an SA-based novel pesticide which is safer than current ones Laboratory of Soil Biology Katsuharu SAITO Associate Professor Keywords; Mycorrhizal symbiosis Plant nutrition Soil biology Plant molecular genetics Cell biology of fungi Maintaining soil fertility is one of the most significant aspects of sustainable agriculture. However, decline in soil fertility occurs all over the world. In our laboratory, we focus on the functions of mycorrhizal and nodule symbioses in plant-microbes interactions, which contribute to plant nutrition, and are interested in applications of these symbioses to agricultural production. Molecular mechanisms underlying mineral transfer in arbuscular mycorrhizal symbiosis A B C D A B C Root nodule and mycorrhizal symbioses. Experiments on plant-microbe interactions. Molecular genetics of arbuscular mycorrhizal symbiosis and root nodule symbiosis using model legume plants Mass production of arbuscular mycorrhizal fungi and utilization them for crop production Integrated Bioscience Division Phosphorus cycling in agro-ecosystems from the viewpoint of mycorrhizal symbiosis 5