| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Research Abstract |
As a general tendency of conifers (a main component of gymnosperm genera), many of them grow in forests in the mid- to high-latitude regions of the Northern Hemisphere where severe climatic conditions such as chilling are often experienced. Conifers may be required to be more tolerant than angiosperms to the surrounding severe conditions. In this study we focused on photosynthesis, because photosynthesis is one of the most sensitive process to stress factors among diverse biological processes in plants. Using total 101 plant species including various types of gymnosperms and angiosperms, we analyzed regulation mechanisms of photosynthesis. Consequently, it was found that gymnosperms have higher capacity for electron flow to oxygen in the chloroplasts' thylakoids than angiosperms. This difference was attributed to a difference due to electron flow dependent on the Mehler reaction.
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