| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Outline of Final Research Achievements |
This study aimed to develop new techniques of environmental control for production of high functional root crops on the plant-physiological basis that antioxidant synthesis is activated to eliminate reactive oxygen species (ROS) generated under slight oxygen deficiency.
Short-term gas exchange inhibition, which might generate ROS, applied to sweetpotato tuberous roots. The treatment increased α-tocopherol content in the tuberous root without inhibition of the root thickening. Electrolyte leakage from the tuberous root cells showed that the treatment caused slight stress within the roots. Short-term high temperature treatment applied to the tuberous root also caused the similar stress within the roots. From these results, environmental control techniques that cause slight oxygen stress temporarily in the storage organs of root crops are considered to be practical for production of high value root crops that contain high antioxidant content.
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