| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
Sensing of gravity in plants is composed of amyloplast sedimentation (PGM pathway) and ARG1 pathway. However, a gravity-sensing molecule that converts gravistimulation into intracellular signals has not been identified. In this study, we found that gravity-responses in arg1 pgm double mutants could be detected under the hypergravity condition that was created by a low-speed centrifuge. Therefore, we screened M2 seedlings of arg1 pgm double mutants that were mutagenized with EMS, and isolated 4 lines of enhancer of arg1 pgm mutants that exhibited less gravity-responses than arg1 pgm mutants did. Hereafter, we expect that analysis of these mutants will allow us to obtain a new insight of how plants sense gravity.
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