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Molecular mechanisms of shoot apical meristem formation

Research Project

Project/Area Number 13440241
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 植物生理
Research InstitutionNARA INSTITUTE OF SCIENCE AND TECHNOLOGY

Principal Investigator

TASAKA Masao  NARA INSTITUTE OF SCIENCE AND TECHNOLOGY, GRADUATE SCHOOL OF BIOLOGICAL SCIENCES, PROFESSOR, バイオサイエンス研究科, 教授 (90179680)

Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥4,800,000 (Direct Cost: ¥4,800,000)
Fiscal Year 2002: ¥4,800,000 (Direct Cost: ¥4,800,000)
KeywordsArabidopsis / shoot apical meristem (SAM) / lateral root formation / CUC1, 2 (CUP SHAPED COTYLEDON 1, 2) / SLR (SOLITARY ROOT) / auxin / transcription factor / 転写因子 / シロイヌナズナ / メリステム / CUC1 / CUC2
Research Abstract

Seedling of dicotyledonous plant has two cotyledons, hypocotyl and embryonic root arranging from the apical to basal. There is a shoot and root apical meristems at the end of hypocotyl root, respectively. Cells in these tissues continue to divide and some of them in the shoot apical meristem are differentiated into lateral organs and stem in turn and root meristem produces root continuously after germination. The purpose of this project is to make clear molecular mechanisms of shoot apical meristem formation during embryogenesis and of lateral root meristem formation using Arabidopsis. We can succeed to get next two interesting results.
1, SAM formation ; CUC 1, 2 (CUP SHAPED COTYLEDONS 1, 2) genes, which are redundantly essential for SAM formation during embryogenesis, are functioned as transcription activators. Ectopic expression of CUC1 caused adventitious shoot induction on cotyledons and leaves. In these processes, CUC1 induced STM (SHOOT MELISTEMLESS) gene expression ectopically. Both CUC1 and CUC2 genes an excel late adventitious shoot induction from callus.
2, RAM formation ; A new root meristem was developed before induction of a lateral root. Phytohormone auxin is important in this process. The novel transcription regulator SLR (SOLITARY ROOT) mediates auxin signal to induce the lateral root meristem from pericycle cells, which re-start cell division. The dominant mutant of this gene (slr) completely lost the ability to induce the lateral root. Suppressors of slr were isolated and one of them was analyzed genetically, which encodes one of the putative chromatin remodeling factors.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report

Research Products

(31 results)

All Other

All Publications

  • [Publications] Fukaki, H., et al.: "Lateral root formation is blocked by a gain-of-function mutation in the SOLITARY-ROOT gene of Arabidopsis"The Plant Journal. 29. 153-168 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kato T.et al.: "SGR2, a phospholipase-like protein, and ZIG/SGR4, a SNARE, are involved in the shoot gravitropism on Arabidopsis"Plant Cell. 14. 33-46 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Morita M.T., et al.: "Involvement of the vacuole of the endodermis in the early process of shoot gravitropism in Arabidopsis"Plant Cell. 14. 47-56 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Aida M.et al.: "Roles of PIN-FORMED1 and MONOPTEROS in Pattern Formation of the Apical Region of the Arabidopsis Embryo"Development. 129. 3965-3974 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Daimon Y. et al.: "The CUP-SHAPED COTYLEDON genes promote adventitious shoot formation on calli"Plant Cell and Physiology. 44. 113-121 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takada S., Hibara K., Ishida T. and Tasaka M.: "The CUP-SHAPED COTYLEDON1 gene of Arabidopsis regulates shoot apical meristem formation"Development. 128. 1127-1135 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tasaka M, Kato T.& Fukaki H.: "Genetic regulation of gravitropism in higher plants"International Review of Cytology. 206. 135-154 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tasaka M.: "From central-peripheral to adaxial-abaxial"Trend in Plant Science. 6. 548-549 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Fukaki, H., Tameda, S., Masuda, H.& Tasaka, M.: "Lateral root formation is blocked by a gain-of-function mutation in the SOLITARY-ROOTgene of Arabidopsis"Plant Journal. 29. 153-168 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kato T., Morita M.T., Fukaki H., Yamauchi Y., Uehara M., Niihama M.and Tasaka M.: "SGR2, a phospholipase-like protein, and ZIG/SGR4, a SNARE, are involved in the shoot giavitropism on Arabidopsis"Plant Cell. 14. 33-46 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Morita M.T., Kato T., Nagafusa K., Saito C., Ueda T., Nakano A.and Tasaka M.: "Involvement of the vacuole of the endodermis in the early process of shoot gravitropism in Arabidopsis"Plant Cell. 14. 47-56 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Aida M., Vemoux T., Furutani M., Traas J., and Tasaka M.: "Roles of PIN-FORMED1and MONOPTEROS in Pattern Formation of the Apical Region of the Arabidopsis Embryo"Development. 129. 3965-3974 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Munekage Y., Hojo M.,Meurer J., Endo T.,Tasaka M.and Sikanai T.: "Proton gradient reguration 5 involved in cyclic electron flow around Photosystem I is essential for photoprotection in Arabidopsis"Cell. 110. 361-37 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kato T., Morita M.T.and Taska M.: "Role of Endodermal Cell Vacuoles in Shoot Gravitropism"Journal of Plant Growth Regulation. 21. 113-119 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takada S.and Tasaka M.: "Embryonic shoot apical meristem formation in higher plants"J.Piant Research. 115. 411-418 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Daimon Y., Takabe K.and Tasaka M.: "The CUP-SHAPED COTYLEDON genes promote adventitious shoot formation on calli"Plant Cell and Physiology. 44. 113-121 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hatakeda Y., Kamada M., Goto N., Fukaki H., Tasaka M., Suge H.and Takahashi H.: "Gravitropic response plays an important role in the nutational movements of the shoots of Pharbitis nil and Arabidopsis thaliana"Physiologia Plantarum. in press. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Aida, M.and Tasaka, M., Meristems, eds, McManus and Veits, B.: "Shoot meristem formation in higher plant embryogenesis"Sheffield Academic Press. (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Masson P.M., Tasaka M., Morita T.M., Guan C., Chen R.and Boonsirichail K., Somerville and Meyelowitz eds.: "Arabidopsis thaliana : A Model for the Study of Root and Shoot Gravitropism"The Arabidopsis book. (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Furutani, M.Aida, and M.Tasaka, edited by T.Sekimura, S.Noji, N.Ueno & K.Maini: "Pattern Formation during Dicotyledonous Plant Embryogenesis, Morphogenesis and Pattern Formation in Biological Systems"Springer-Verlag, in press. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Fukaki, H., et al.: "Lateral root formation is blocked by a gain-of-function mutation in the SOLITARY-ROOT gene of Arabidopsis"The Plant Jounal. 29. 153-168 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kato T.et al.: "SGR2, a phospholipase-like protein, and ZIG/SGR4, a SNARE, are involved in the shoot gravitropism on Arabidopsis"Plant Cell. 14. 33-46 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Morita M.T., et al.: "Involvement of the vacuole of the endodermis in the early process of shoot gravitropism in Arabidopsis"Plant cell. 14. 47-56 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Aida M.et al.: "Roles of PIN-FORMED1 and MONOPTEROS in Pattern Formation of the Apical Region of the Arabidopsis Embryo"Development. 129. 3965-3974 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Daimon Y. et al.: "The CUP-SHAPED COTYLEDON genes promote adventitious shoot formation on calli"Plant Cell and Physiology. 44. 113-121 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Takada S, et al.: "The CUP-SHAPED COTYLEDONI gene of Arabidopsis regulates shoot apical meristem formation"Development. 128. 1127-1135 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Fukaki, H., et al.: "Lateral root formation is blocked by a gain-of-function mutation in the SOLITARY-ROOT gene of Arabidopsis"The Plant Jounal,. 29. 153-168 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kato T, et al.: "SGR2, a phospholipase-like protein, and ZIG/SGR4, a SNARE, are involved in the shoot gravitropism on Arabidopsis"Plant Cell. 14. 33-46 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Morita M.T., et al.: "Involvement of the vacuole of the endodermis in the early process of shoot gravitropism in Arabidopsis"Plant cell. 14. 47-56 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Tasaka M, et al.: "Genetic regulation of gravitropism higher plants"Intrenational Review of Cytology. 206. 135-154 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Tasaka M.: "From central-peripheral to adaxial-abaxial"Trend in Plant Science. 6. 548-549 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2002-03-31   Modified: 2016-04-21  

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