| Budget Amount *help |
¥26,260,000 (Direct Cost: ¥20,200,000、Indirect Cost: ¥6,060,000)
Fiscal Year 2014: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2013: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2012: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2011: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
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| Outline of Final Research Achievements |
It is expected to save amount of P fertilizer usage, because the resource is depleting. On the other hand, unavailable forms of P are accumulated in cultivated lands. Specific group of plants has ability to access the unavailable P by high ability to secrete organic acids and phosphatase. This study aimed to investigate and apply their functions.
Several genes for organic acid transporter have been isolated from plants, which are able to access unavailable P. It was suggested that these transporters contributed to higher ability of organic acid exudation. It was indicated that transformation of organic acid transporter and acid phosphatase improved the availability of P in the rhizosphere soil by their mobilizing functions.
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