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Leaf dynamics: leaf mean residence time and photosynthetic efficiency

Research Project

Project/Area Number 25440230
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Ecology/Environment
Research InstitutionTohoku University

Principal Investigator

Hirose Tadaki  東北大学, 生命科学研究科, 名誉教授 (90092311)

Co-Investigator(Kenkyū-buntansha) HIKOSAKA Kouki  東北大学, 大学院生命科学研究科, 教授 (10272006)
Co-Investigator(Renkei-kenkyūsha) OIKAWA Shimpei  茨城大学, 大学院理工学研究科, 助教 (90400308)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords生理生態 / 葉群動態 / 平均滞留時間 / 光合成生産効率 / 寿命 / 光合成 / 窒素 / 葉面積 / 群落密度 / オオオナモミ
Outline of Final Research Achievements

We studied leaf dynamics with respect to mean residence time and photosynthetic efficiency using cockleburs and rice. Cockleburs were grown at two densities and the effects on leaf dynamics of light gradient within a canopy and of nitrogen sink strength were studied. Light gradient was stronger in a dense stand due to mutual shading, while nitrogen sink strength was stronger in an open stand due to higher branching and reproductive activities. Nitrogen use efficiency (NUE) in rice plants was analyzed at leaf, shoot, and whole-plant level, with factorization into nitrogen productivity (NP) and mean residence time (MRT). No significant difference was found in MRT and harvest index between rice and wild annuals. The high NUE in rice was ascribed solely to its high NP. Because of high opportunity costs of reducing NP, MRT may not be increased further in rice. By contrast, high NUE in perennials was due to high MRT. Their NP was as low as wild annuals'.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (13 results)

All 2016 2015 2014 2013

All Journal Article (10 results) (of which Peer Reviewed: 6 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (3 results)

  • [Journal Article] Nitrogen-utilization efficiency in rice: an analysis at leaf, shoot, and whole-plant level.2016

    • Author(s)
      Ogawa et al.
    • Journal Title

      Plant and Soil

      Volume: - Issue: 1-2 Pages: 1-24

    • DOI

      10.1007/s11104-016-2832-2

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optimality of nitrogen distribution among leaves in plant canopies.2016

    • Author(s)
      Hikosaka K
    • Journal Title

      Journal of Plant Research

      Volume: -

    • Related Report
      2015 Annual Research Report
  • [Journal Article] A meta-analysis of leaf nitogen distribution within plant canopies.2016

    • Author(s)
      Hikosaka K, Anten NPR, Borjigidai A, Kamiyama C, Sakai H, Hasegawa T, Oikawa S, Iio A, Watanabe M, Koike T, Nishina K, Ito A
    • Journal Title

      Annals of Botany

      Volume: -

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Plant-plant interactions mediate the plastic and genotypic response of Plantago asiatica to CO2: an experiment with plant populations from naturally high CO2 areas.2016

    • Author(s)
      van Loon M, Rietkerk M, Dekker SC, Hikosaka K, Ueda MU, Anten NPR
    • Journal Title

      Annals of Botany

      Volume: -

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Effects of seasonal change and experimental warming on the temperature dependence of photosynthesis in the canopy leaves of Quercus serrata.2016

    • Author(s)
      Yamaguchi DP, Nakaji T, Hiura T, Hikosaka K
    • Journal Title

      Tree Physiology

      Volume: -

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Which plant trait explains the variations in relative growth rate and its response to elevated carbon dioxide concentration among Arabidopsis thaliana ecotypes derived from a variety of habitats?2016

    • Author(s)
      ⑧Oguchi R, Ozaki H, Hanada K. Hikosaka K
    • Journal Title

      Oecologia

      Volume: 180 Issue: 3 Pages: 865-876

    • DOI

      10.1007/s00442-015-3479-z

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Leaf dynamics in growth and reproduction of Xanthium canadense as influenced by stand density.2015

    • Author(s)
      Ogawa et al.
    • Journal Title

      Annals of Botany

      Volume: 116 Pages: 807-819

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stem extension and mechanical stability of Xanthium canadense grown in an open or in a dense stand2014

    • Author(s)
      Watari R, Nagashima H, Hirose T
    • Journal Title

      Annals of Botany

      Volume: 114 Issue: 1 Pages: 179-190

    • DOI

      10.1093/aob/mcu088

    • Related Report
      2014 Research-status Report 2013 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Light capture and plant architecture determine co-existence and competitive exclusion in grassland succession - and grazing interferes in this process2013

    • Author(s)
      Werger MJA, Hirose T
    • Journal Title

      Colloques Phytosociologiques

      Volume: 29 Pages: 731-749

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of elevated CO2 on leaf area dynamics in nodulating and non-nodulating soybean stands2013

    • Author(s)
      Oikawa S, Okada M, Hikosaka K
    • Journal Title

      Plant and Soil

      Volume: 373 Pages: 627-639

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] オナモミとイネ:個体レベル・葉レベルの窒素利用効率2016

    • Author(s)
      廣瀬 忠樹
    • Organizer
      第63回日本生態学会大会
    • Place of Presentation
      仙台
    • Year and Date
      2016-03-24
    • Related Report
      2015 Annual Research Report
  • [Presentation] 植物の落葉タイミングは最適か:野外での検証2016

    • Author(s)
      黒川 千晴、及川 真平
    • Organizer
      第63回日本生態学会大会
    • Place of Presentation
      仙台
    • Year and Date
      2016-03-24
    • Related Report
      2015 Annual Research Report
  • [Presentation] 樹木の高CO2応答は機能型によって異なるのかー常緑樹vs.落葉樹2014

    • Author(s)
      髙岡侑依子, 三輪絵梨香,彦坂幸毅, 廣瀬忠樹,衣笠利彦
    • Organizer
      第61回日本生態学会大会
    • Place of Presentation
      広島
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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