Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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Outline of Final Research Achievements |
Elongation growth was inhibited and lateral expansion was promoted by increasing the gravitational force in the epidermal cells of azuki bean epicotyls and Arabidopsis hypocotyls. Hypergravity modified the angles between filaments in radially distributed actin filaments of both seedlings. Also, the percentage of cells with thick actin filaments was increased under hypergravity conditions. When actin filaments were disrupted, effects of hypergravity on the modification of cell shape were reduced. Thus, changes in the dynamics of actin filaments may be involved in the regulation by gravity of growth anisotropy of shoot organs.
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