Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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Research Abstract |
In this work, high time resolution and high frequency ESR experiments were performed for Photosystem I (PSI) from the deuterated cyanobacterium Synechococcus lividus. Spin dynamics were measured by monitoring the electron spin echo signals with different delay times after the laser flash (DAF). Assuming a weakly interacting spin-correlated radical pair, the kinetic curve can be almost fit with two time constants, indicating that the spin dynamics involve two kinds of radical pairs in PSI. It was concluded that bidirectional electron transfer occurs in PSI.
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