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1997 Fiscal Year Final Research Report Summary

Trade-offs among traits related with stress tolerance and the morphological and physiological basis for optimum regulation of them for improved crop yield

Research Project

Project/Area Number 07306001
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 作物学
Research InstitutionThe University of Tokyo

Principal Investigator

AKITA Shigemi  Grad.Sch.Agr.Life Sci.Agr.& Env.Bio.The University of Tokyo Professor, 大学院・農学生命科学研究科, 教授 (10251498)

Co-Investigator(Kenkyū-buntansha) IWAMA Kazuto  Hokkaido Univ.Agriculture Assoc.Prof., 農学部, 助教授 (70144219)
YAMAUCHI Akira  Nagoya Univ.Agriculture Assoc.Prof., 農学部, 助教授 (30230303)
TERASHIMA Ichiro  Osaka Univ.Grad.Sch.Sci.Biology Professor, 大学院・理学研究科, 教授 (40211388)
KUBOTA Fumitake  Kyushu Univ.Agriculture Professor, 農学部, 教授 (50136602)
ISHIHARA Kuni  Utsunomiya Univ.Agriculture Professor, 農学部, 教授 (70014925)
Project Period (FY) 1995 – 1997
Keywordsamylase / abiotic stress / drought / chill injury / nutrients / acid soil / 酸性土壌耐性
Research Abstract

In rice study group, eco-physiological basis for the possible abiotic stresses was studied and the followings were the major outputs : (1) seedling emergence in low and submerged condition was closely associated with the expression of beta-amylase in aleuron layr, which is regulated in the transcription process of m-RNA (Akita) ; (2) remarkable increase of growth of Cyperus was observed when it was grown in the lake water in which nutrient content is low in comparison with the limited increase of growth in rice (Kubota) ; (3) physiological background for the tolerance to low temperature was elucidated (Terashima) ; (4) tolerance mechanism of upland rice to drought was clarified (Kobata) ; (5) mechanism of tolerance to salt stress was clarified (Tsuchiya and Hirai) ; and sldo (6) mechanism of tolerance to acid soil was elucidated (Yamagishi).
In upland crops group, the mechanism of the drought stress tolerance was studied and the following results were obtained : (1) the differential dry matter partitioning to underground and aerial parts affects the tolerance to drought and the regulation of this partitioning ratio resulted in the increased growth under water stress condition (Iwama) ; (2) the relationship between root growth pattern and the tolerance were clarified (Yamauchi) ; (3) the physiological mechanism of differential growth of soybean to stress condition in late growth stage was clarified (Ishihara). Through these experiments, the trade-offs between stress tolerance and crop yield were also elucidated as well as the eco-physiological basis for stress tolerance.

  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] 尹 炳星・山口 淳二・根本 圭介・秋田 重誠: "低温・低酸素条件下において出芽中の稲種子のαおよびβアミラーゼ遺伝子の発現" 日作紀. 66(別1). 156-157 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 川嶋 浩樹・岩間 和人・金子 正 他: "バレイショにおける葉の拡散抵抗の日変化,生育に伴う推移ならびに葉の表裏面間および葉位間の差異" 日作紀. 66. 235-241 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Izumi, Y., Kono, Y., Yamauchi, A.and Iijima, M.: "Genotypic variation in the development of seminal root system of rice under different culture condition in vitro" Japanese Journal of Crop Science. 66. 427-430 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Noguchi and Terashima, I: "Comparative study of the respiratory systems of leavesin sun and shade plants" Physiologia Plantarum. 101. 1-7 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 徐 銀発・大川 泰一郎・石原 邦: "多収性水稲品種タカナリの光合成特性解析" 日作紀. 66. 616-623 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 宮崎 彰・徳田 眞二・縣 和一・窪田 文武・宋 祥甫: "水上栽培したシュロガヤツリの光合成生産と水質浄化能力について" 日作紀. 66(2). 325-326 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Soejima, T.Sugiyama and K.Ishihara: "Changes in the chlorophyll contents of leaves and in leaves of cytokinins in root exudates during ripening of rice cultivars Nipponbare and Akenohoshi." Plant Cell Physiol.36. 1105-1114 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hisasawa, K.Wakabayashi, S.Touya and K.Ishihara: "Stomatal responses to water deficits and abscisic acid in leaves of sunflower plants (Helianthus annuus L.) grown under different conditions." Plant Cell Physiol.36. 955-964 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hirasawa, H.Takahashi, H.Suge and K.Ishihara: "Water potential, turger and cell wall properties in elongating tissues of the hydrotropically bending roots of pea, Pisum sativum L" Plant Cell Environment. 20. 381-386 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Mia, M.W., Yamauchi, A.and Kono, Y.: "Root system structure of six food legume species : Inter-and intraspecific variations." Japanese Journal of Crop Science. 65. 131-140 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Mia, M.W., Yamauchi, A.and Kono, Y.: "Plasticity in taproot elongation of several food legume species." Japanese Journal of Crop Science.65. 368-378 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Izumi, Y., Kono, Y., Yamauchi, A.and Iijima, M.: "Genotypic variation in the development of seminal root system of rice under different culture condition in vitro." Japanese Journal of Crop Science. 66. 427-435 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Ishibashi, H.Usuda and I.Terashima: "The loss of ribulose-1,5-bisphosphate carboxylase caused by 24-hour "rain" treatment fully explains the decrease in the photosynthetic rate in bean leaves." Plant Physiology. 111. 635-640 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A.Miyazaki, W.Agata, F.Kubota and X.Song: "Productive features and root respiratory activity of rice and wheat grown by the floating culture system." J.Agric.Meteorol.52 (5). 811-814 (1997)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-16  

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