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Regulation and Acclimation of C_2-photosynthesis in High CO_2

Research Project

Project/Area Number 04660064
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 土壌・肥料
Research InstitutionTohoku University

Principal Investigator

MAKINO Amane  Tohoku Univ., Faculty of Agriculture, Assistant Professor, 農学部, 助手 (70181617)

Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1993: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1992: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsGas Exchange / Photosynthesis / High CO_2 / Nitrogen Nutrition / Acclimation / C_3 Plants / Rubisco
Research Abstract

The photosynthetic gas-exchange rates and their underlying biochemical properties were examined in young, fully expanded leaves of rice, wheat and pea. The plants were grown hydroponically under different CO_2 concentrations (35 Pa and 70 Pa). Enhanced CO_2 did not affect Rubisco content, carbonic anhydrase activity and electron transport capacity for a given leaf nitrogen content. However, it affected the light-saturated photosynthetic CO_2 response curve. The relative ratio of the initial slope to the CO_2-saturated photosynthesis decreased in the plants grown under high CO_2. This was mainly caused by an decrease in the initial slope for a given Rubisco content with rising CO_2 concentrations. This suggests that long-term CO_2 enhancement leads to an decrease in the CO_2 transfer conductance inside a leaf.

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] Makino et al.: "Distinctive Responses of Ribulose-1,5-bisphosphate Carboxylase and Carbonic Andydrase in Wheat Leaves to Nitrogen Nutrition and their Possible Relationships to CO_2-Transfer Resistance" Plant Physiology. 100. 1737-1743 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Makino: "Biochemistry of C_3-photosynthesis in High CO_2" Journal of Plant Research. 107(印刷中). (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Makino et al.: "Responses of Ribulose-1,5-bisphosphate Carboxylase,Cytochrpmef,and Sucrose Synthesis Enzymes in Rice Leaves to Leaf Nitrogen and Their Relationships to Photosynthesis" Plant Physiology. 105(印刷中). (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Makino: "Distictive Responses of Ribulose 1,5 bis phosphate Carboxylase and Carbonic Anhydrase in Wheat Leaves to Nitrogen Nutrition and Their Possible Relationships to CO_2-transfer Resistance" Plant Physiology. 100. 1737-1743 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Makino: "Biochemistry of C_3-photosynthesis in High CO_2" Journal of Plant Research. (in press). (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Makino: "Responses of Ribulose-1,5-bisphosphate Carboxilase, cytochrome f, and Sucrose Synthesis Enzymes in Rice Leaves to Leaf Nitrogen and Their Relationships to Photosynthesis" Plant Physiology. 105. (in press) (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Makino et al.: "Distinctive Responses of Ribulose-1.5-bisphosphate Canboxylase and Carbonic Andydrase in Wheat Leaves to Nitrogen Nutvition and Their Possible Relationships to CO_2-Transfer Resistance" Plant Physiology. 100. 1737-1743 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] Makino: "Biochemistry of C_3-photosynthesis in High CO_2" Journal of Plant Research. 107(印刷中). (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] Makino et al.: "Responses of Ribulose-1.5-bisphosphate Canboxylase,Cytochromef,and Sucrose Synthesis Enzymes in Rice Leaves to Leaf Nitrogen and Thair Relationskips to Photosynthesis" Plant Physiology. 105(印刷中). (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] Makino et al.: "Distinctive Responses of Ribulose-1.5-bisphosphate Carboxylase and Corbonic Anhydrase in Wheat Leaves to Nitrogin Nutrition and their Possible Relationships to CO_2-Transfer Resistance" Plant Physiology. 100. 1737-1743 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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