| Budget Amount *help |
¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
Fiscal Year 2013: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2012: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2011: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
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| Research Abstract |
The technological development to concentrate industrially important rare metals from solution with low concentrations by photosynthesis bacteria and to collect such metals in the form of bacterial cells has been conducted. Among such rare metals, molybdenum is an element especially indispensable for the function of vegetable nitrate reductases. This study revealed that during cultivation of photosynthesis bacteria, the metal compositional ratio in cells changed markedly by the presence or absence of an inorganic form of nitrogen, and molybdenum could be specifically concentrated by removal of the nitrogen source. The photosynthetic bacterial cells that accumulated molybdenum with high contents could be valuable as a bio-material to provide molybdenum to agricultural land.
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