2013 Fiscal Year Final Research Report
Effects of high CO2 on photosynthesis and plant productivity under nitrogen-limited conditions
Project Area | Comprehensive studies of plant responses to high CO2 world by an innovative consortium of ecologists and molecular biologists |
Project/Area Number |
21114003
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Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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Allocation Type | Single-year Grants |
Review Section |
Biological Sciences
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Research Institution | Nagoya University |
Principal Investigator |
OMATA Tatsuo 名古屋大学, 生命農学研究科, 教授 (50175270)
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Co-Investigator(Kenkyū-buntansha) |
AICHI Makiko 中部大学, 応用生物学部, 講師 (00340208)
MAEDA Shin-ichi 名古屋大学, 大学院生命農学研究科, 助教 (70335016)
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Project Period (FY) |
2009-07-23 – 2014-03-31
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Keywords | 植物 / 環境 / 二酸化炭素 / 生産性 / 光合成 |
Research Abstract |
Using a nitrate-transport-deficient mutant of Arabidopsis thaliana, effect of high CO2 on plant growth under limited nitrogen supply was examined. During growth under high CO2 but not under low CO2, the mutant seedlings developed well-known symptoms of nitrogen-starved plants, including decreased shoot/root ratio and accumulation of anthocyanin, but the plant also showed increased chlorophyll content, which was contradictory to the known effect of nitrogen-depletion. A high-CO2-responsive change specific to the mutant was not observed in the levels of the major metabolites; Similar CO2 responses were observed in WT and the mutant. Elevated CO2 thus causes nitrogen limitation in the seedlings grown with a constantly limited supply of nitrogen, but the chlorophyll content and the root biomass of the plant increase to enhance the activities of both photosynthesis and nitrogen uptake, while maintaining normal metabolism and response to high CO2.
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[Journal Article] In vitro and in vivo analyses of the role of carboxysomal β-type carbonic anhydrase of the cyanobacterium Synechococcus elongatus in carboxy- lation of ribulose-1,5-bisphosphate2014
Author(s)
Nishimura, T., Yamaguchi, O., Takatani, N., Maeda, S., Omata, T.
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Journal Title
Photosynthesis Research
Volume: (in press)
DOI
Peer Reviewed
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[Journal Article] Effects of high CO2 on growth and metabolism of Arabidopsis seedlings during growth with a constantly limited supply of nitrogen2014
Author(s)
Takatani, N., Ito, T., Kiba, T., Mori, M. Miyamoto, T., Maeda, S., Omata, T.
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Journal Title
Plant and Cell Physiology
Volume: 55
Pages: 281-292
DOI
Peer Reviewed
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[Journal Article] CmpR is important for circadian phasing and cell growth2012
Author(s)
Tanaka, H., Kitamura, M., Nakano, Y., Katayama, M., Takahashi, Y., Kondo, T., Manabe, K., Omata, T., Kutsuna, S.
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Journal Title
Plant and Cell Physiology
Volume: 53
Pages: 1561-1569
DOI
Peer Reviewed
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[Journal Article] Regulation of nitrate assimilation in cyanobacteria2011
Author(s)
Ohashi, Y., Shi, W., Takatani, N., Aichi, M., Maeda, S., Watanabe, S., Yoshikawa, H., Omata, T
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Journal Title
Journal of Experimental Botany
Volume: 62
Pages: 1411-1424
DOI
Peer Reviewed
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[Journal Article] Nitrate assimilatory genes and their transcriptional regulation in a unicellular red alga Cyanidioschyzon merolae : genetic evidence for nitrite reduction by a sulfite reductase-like enzyme2010
Author(s)
Imamura, S., Terashita, M., Ohnuma, M., Maruyama, S., Minoda, A., Weber, A.P., Inouye, T., Sekine, Y., Fujita, Y., Omata, T., Tanaka, K.
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Journal Title
Plant and Cell Physiology
Volume: 51
Pages: 707-717
DOI
Peer Reviewed
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[Presentation] Effects of PII deficiency and the toxicity of PipX on growth of the cyanobacterium Synechococcus elongatus2013
Author(s)
Omata, T., Chang, Y., Takatani, N., Uesaka, K., Ihara, K., Maeda, S., Aichi, M.
Organizer
2nd International Symposium on the Nitrogen Nutrition of Plants
Place of Presentation
Puerto Varas, Chile
Year and Date
2013-11-19
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[Presentation] Effects of CO_2 enrichment on the growth and metabolism of Arabidopsis thaliana under the constantly nitrogen-limited conditions2013
Author(s)
Takatani, N., Mori, M., Miyamoto, T., Kiga, T., Maeda, S., Omata, T.
Organizer
2nd International Symposium on the Nitrogen Nutrition of Plants
Place of Presentation
Puerto Varas, Chile
Year and Date
2013-11-19
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