| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
Salicylic acid (SA) is an important inducer of defense responses in plants. In rice, however, it is unknown whether SA has a direct role to trigger defense responses. Furthermore, the synthesis pathway of SA is not clear in rice.
Previously, we reported the possibility that the activation of defense responses, including expression of defense related genes and HR-like lesion formation, depends on the accumulation of SA in rice. Here, we examined the molecular mechanism of SA synthesis in defense responses using the rice mutant which over-accumulates SA compared with the wild type siblings. We also focused on isochorismate synthase (ICS) gene which is a key enzyme for SA synthesis in Arabidopsis. We identified the rice ICS homologous gene and analyzed the contribution of it on the activation of defense responses in rice.
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