2011 Fiscal Year Final Research Report
Phytochrome-mediated growth phase transition in land plants
| Project/Area Number |
22770035
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Plant molecular biology/Plant physiology
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
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| Keywords | 環境応答 |
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| Research Abstract |
Plants regulate their growth phase transition in response to light environment such as day-length and light qualities. We focused on a red/far-red receptor, phytochrome, as a key regulator of growth phase transition, and investigated the phytochrome-mediated signaling mechanism in the liverwort Marchantia polymorpha. We showed that phytochrome is translocated to nucleus in response to light. A series of transgenic approaches suggested that phytochrome regulates gene expression via a homologue of transcription factor, PHYTOCHROME INERACTING FACTOR(PIF). Our results also implied that the active-form phytochrome up-regulated the expression cyclin D, a core regulator of cell cycle progression. Taken together, phytochrome in Marchantia could regulate the growth phase transition by regulating, possibly via PIF, the nuclear gene expression of cell cycle gene such as cyclin D.
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Research Products
(12 results)
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[Journal Article] Analysis of a range of catabolic mutants provides evidence that phytanoyl-CoA does not act as a substrate of the ETF/ETFQO complex in Arabidopsis thaliana during dark induced senescence2011
Author(s)
Araujo WL, Ishizaki K, Nunes-Nesi A, Tohge T, Larson TR, Krahnert I, Balbo I, Witt S, Dormann P, Graham IA, Leaver CJ, and Fernie AR
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Journal Title
Plant Physiol
Volume: 157
Pages: 55-59
DOI
Peer Reviewed
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[Journal Article] Identification of the 2-hydroxyglu tarate and isovaleryl-CoA dehydrogenase as alternative electron doners linking lysine catabolism to the electron transport chain of Arabidopsis mitochomdria2010
Author(s)
Araujo WL, Ishizaki K, Nunes-Nesi A, Larson TL, Tohge T, Krahnert I, Witt S, Obata T, Schauer N, Graham IA, Leaver CJ, and Fernie AR
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Journal Title
Plant Cell
Volume: 22
Pages: 1549-1563
DOI
Peer Reviewed
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