Abstract
Defense response of plants against pathogenic microorganisms includes changes in metabolism, such as the production of key signaling compounds, salicylic acid (SA) and jasmonic acid (JA). The mechanisms controlling SA- and JA production in response to the pathogen attack have been studied extensively. On the other hand, there have been few studies describing a comprehensive profile of metabolites associated with pathogenesis. Here, we report comprehensive metabolite profiles of transgenic Arabidopsis lines that have different levels of resistance to viral infection using metabolome approach.
Resistant lines without provoke hypersensitive response (HR), so called extreme resistance (ER), were strongly restricted metabolite changes at the early stage of viral infection whereas susceptible Col-0 plants and resistant lines with HR were not. We would like to discuss a mechanism of ER type resistance in terms of changes in metabolite profiles.
