• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Molecular Studies on Dormancy, Fruit Development and Growth Regulation in Deciduous Fruit Trees

Research Project

Project/Area Number 11306003
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 園芸・造園学
Research InstitutionUniversity of Tsukuba

Principal Investigator

IWAHORI Shuichi  University of Tsukuba, Institute of Agriculture and Forestry, Professor, 農林学系, 教授 (00012055)

Co-Investigator(Kenkyū-buntansha) SAKAMOTO Tomoaki  University of Tsukuba, Institute of Agriculture and Forestry, JSPS Fellow, 農林学系, 学振特別研究員
SUGAYA Sumiko  University of Tsukuba, Institute of Agriculture and Forestry, Lecturer, 農林学系, 講師 (90302372)
GEMMA Hiroshi  University of Tsukuba, Institute of Agriculture and Forestry, Associate Professor, 農林学系, 助教授 (70094406)
TANAKA Hiroshi  National Institute of Agrobiological Sciences, Plant Biotechnology Department, Laboratory head, 新生物資源創出研究グループ, チーム長
MORI Hitoshi  Nagoya University, Graduate School of Bioagricultural Sciences, Associate Professor, 農学部, 助教授 (20220014)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥41,860,000 (Direct Cost: ¥39,100,000、Indirect Cost: ¥2,760,000)
Fiscal Year 2001: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
Fiscal Year 2000: ¥8,500,000 (Direct Cost: ¥8,500,000)
Fiscal Year 1999: ¥21,400,000 (Direct Cost: ¥21,400,000)
Keywordsabscisic acid / anthocyanin / auxin / cytokinin / coloring / dwarf / gibberelin / ジベレリン / ABA / CHI / UFGalT / 果肉培養 / 2酸化酵素遺伝子 / 3β水酸化酵素遺伝子 / ジベレリン2β水酸化酵素 / 形質転換植物 / 矮化 / リンゴ / カルス培養 / アントシアニン合成
Research Abstract

Morphogenesis of fruit trees are quite important problems in fruit growing. But the biochemical studies, in particular the techniques of molecular biology, have been scarcely applied to clarify the physiological regulation of morphogenesis in fruit tree. Elucidation of the mechanisms that regulate the growth and development of fruit tree will enable to establish the epochal cultivation techniques. However, not only the studies directly using the fruit trees as material, but also the basic studies using the model systems will provide new insights into the fruit tree development and novel approaches to clarify the physiological phenomena which are important for fruit tree science.
To clarify the mechanism of dormancy, we identified the genes differentially expressed in pea axillary buds after the release of apical dominance. In conclusion, the maintenance and the break of dormancy is regulated by the cross talk of phytohormones such as auxin, cytokinin and abscisic acid.
To clarify the mechanism of fruit coloring, we generated the in vitro assay system using the apple callus derived from flesh cells. Our results clearly demonstrated that the in vivo activity ofanthocyanin biosynthetic enzymes are controlled by the light conditions and the levels of mineral nutrients.
With the aim of generating dwarf plants, we modified the level of gibberellin (GA), in transgenic plants by overproduction of a GA catabolic enzyme. Theses transformants showed dwarf or semi-dwarf. Stability and inheritance of these traits demonstrate the feasibility of genetic improvement of cereal crops by modulation of GA catabolism and bioactive GA contents.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] Madoka, Y., Mori, H.: "Two novel transcripts expressed in pea dormant axillary buds"Plant Cell Physiology. 41. 274-281 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Madoka, Y., Mori, H.: "Acropetal disappearance of PsAD1 protein in pea axillary buds after the release of apical dominance"Plant Cell Physiology. 41. 556-564 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Sakamoto, T., Kobayashi, M., Itoh, H., Tagiri, A., Kayano, T., Tanaka, H., Iwahori, S., Matsuoka, M.Matsuoka, M.: "Expression of a gibberellin 2-oxidase gene around the shoot apex is related to phase transition in rice"Plant Physiology. 125. 1508-1516 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Shimizu-Sato, S., Mori, H.: "Control of outgrowth and dormancy in axillary buds"Plant Physiology. 127. 1405-1413 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Li, Z., Gemma, H., Iwahori, S.: "Changes in flavonoids accumulation and activivies of enzymes involved in flavonoids biosynthesis in the skin of 'Fuji' and 'Orin' apples during fruit devepment"Journal of Japanese Society for Horticultural Science. (印刷中). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Li, Z., Gemma, H., Iwahori, S.: "Simulation of coloring of skin of 'Fuji' apple as affected by ethephon and phosphorus-calcium mixed compounds in relation to flavonoid synthesis"Scientia Horticulturae. (印刷中). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 坂本知昭, 伊藤博紀, 田切明美, 萱野暁明, 岩堀修一, 小林正智, 松岡信, 田中宥司: "ジベレリン生合成酵素遺伝子の発現調整によるイネ草型の人為的制御"化学と生物. 38. 131-139 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Li, Z., Gemma, H., Iwahori, S.: "Changes in flavonoids accumulation and activities of enzymes involved in flavonoids biosynthesis in the skin of 'Fuji' and 'Orin' apples during fruit development."Journal of the Japanese Society for Horticultural Science. (in press). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Li, Z., Gemma, H., Iwahori, S: "Stimulation of coloring of skin of 'Fuji' apple as affected by ethephon and phosphoruscalcium mixed compounds in relation to flavonoid synthesis."Scientia Horticulturae. (in press). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Madoka, Y., Mori, H.: "TWO novel transcripts expressed in pea dormant axillary buds"Plant Cell Physiology. 41. 274-281 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Madoka, Y., Mori, H.: "Acropetal disappearance of PsADl protein in pea axillary buds after the release of apical dominance"Plant Cell Physiology. 41. 556-564 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Sakamoto, T., Kobayashi, M., Itoh, H., Tagiri, A., Kayano, T., Tanaka, H., Iwahori, S. Matsuoka, M.: "Expression of a gibberellin 2-oxidase gene around the shoot apex is related to phase transition in rice"Plant Physiology. 125. 1508-1516 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Shimizu-Sato, S., Mori, H.: "Control of outgrowth and dormancy in axillary buds"Plant Physiology. 127. 1405-1413 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Sakamoto, T., Itoh, H., Tagiri, A., Kayano, Iwahori, S., Kobayashi, M., Matsuoka, M. Tanaka, H.: "Regulation of leaf shape by the control of gene expression involved in gibberelin biosynthesis"Chemistry and Biology. 38. 131-139 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Shimizu-Sato, S. Mori, H.: "Control of outgrowth and dormancy in axillary buds"Plant Physiology. 127. 1405-1413 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Li, Z., Gemma, H. Iwahori, S.: "Changes in flavonoids accumulation and activities of enzymes involved in flavonoids biosynthesis in the skin of 'Fuji' and 'Orin' apples during fruit devepment"Journal of Japanese Society for Horticultural Science. (印刷中). (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Li, Z., Gemma, H. Iwahori, S.: "Stimulation of coloring of skin of 'Fuji' apple as affected by ethephon and phosphorus-calcium mixed compounds in relation to flavonoid synthesis"Scientia Horticulturae. (印刷中). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Sakamoto,M.Kobayashi,H.Itoh,A.Tagiri,T.Kayano,H.Tanaka,S.Iwahori,M.Matsuoka: "Expression of a gibberellin 2-oxidase gene around the shoot apex is related to phase transition in rice"Plant Physiology. 125(in press). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 坂本知昭(他6名): "ジベレリン生合成酵素遺伝子の発現調節によるイネ草型の人為的制御"化学と生物. 38・2. 131-139 (2000)

    • Related Report
      1999 Annual Research Report

URL: 

Published: 1999-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi