2013 Fiscal Year Final Research Report
Damage mechanism of photosystem and light-dependent acquired thermotolerance of photosystem
| Project/Area Number |
23580456
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Boundary agriculture
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| Research Institution | Kobe University |
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Principal Investigator |
YAMAUCHI Yasuo 神戸大学, (連合)農学研究科(研究院), 助教 (90283978)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 高温障害 |
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| Research Abstract |
PhotosystemII (PSII) in higher plants is highly susceptible to heat stress. Light condition is a critical factor determining damage of PSII under heat condition, i.e. PSII is seriously damaged by heat treatment in the dark but not in the light. In this study, we analyzed heat-derived damage mechanism in the dark, and light-dependent thermotolerance.
Under heat condition in the dark, over-reduction of thylakoid membrane causes damage of PSII through possible production of ROS. On the other hand, light treatment enhances thermotolerance of PSII, and the thermotolerance was supported by promoted cyclic electron flow around PSI.
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[Journal Article] Plants switch photosystem at high temperature to protect photosystem II2011
Author(s)
Yamauchi, Y., Marutani, Y., Akimoto, S., Kimura, Y., Mizutani, M., Sugimoto, Y.
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Journal Title
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[Journal Article] Conversion of dechlorodauricumine into miharumine by a cell-free preparation from cultured roots of Menispermum dauricum2009
Author(s)
Hori, R., Sugimoto, G., Matsui, M., Yamauchi, Y., Takikawa, H., Sugimoto, Y.
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Journal Title
Bioscience, Biotechnology, and Biochemistry
Volume: 73
Pages: 440-442
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