Fluctuation and Localization of Endogenous Gibberellins in Rice(Organic Chemistry)

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概要

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• Changes in the kind and level of endogenous gibberellins (GAs) in the shoot and ear of rice (Oryza saliva L. japonica variety, cultivar Nihonbare) through its life cycle were investigated. Gibberellin A_<19> (GA_<19>) was the major GA, and GA_1, GA_<20>, GA_<29> and GA_<53> were minor GAs in the shoot of rice. Besides these 13-hydroxylated (13-OH) GAs, two non-13-hydroxylated (13-H) GAs, namely GA_4 and GA_<34>, were identified in the shoot (containing the ear) collected at the heading stage. Further studies on the distribution and changes in the level of GAs in reproductive organs revealed that GA_4 was highly concentrated in anthers collected just before anthesis, but was not detected in immature seeds collected about a week after anthesis. These results suggest that 13-H GAs may be biosynthesized in specific organs at a specific stage of the life cycle, and that they may be concerned with the regulation of reproductive growth, while vegetative growth is regulated by 13-OH GAs, probably GA_1.

• 社団法人日本農芸化学会の論文
• 1988-05-23

著者

• TAKAHASHI Nobutaka

  Department of Biochemistry University of Shizuoka School of Pharmaceutical Science

• Kobayashi Miki

  Biochemicals Laboratory Mitsubishi Chemical Corporation

• YAMAGUCHI Isomaro

  Department of Applied Biological Chemistry, The University of Tokyo

• MUROFUSHI Noboru

  Department of Biotechnology, Akita Prefectural University

• Maejima Noboru

  Department Of Biotechnology Akita Prefectural University

• Kobayashi Masatomo

  The Institute of Physical and Chemical Research

• Takahashi Nobutaka

  Department Of Agricultural Chemistry The University Of Takyo

• Yamaguchi Isomaro

  Department Of Applied Biological Chemistry The University Of Tokyo

• Murofushi Noboru

  Department Of Agricultural Chemistry The University Of Tokyo

• Yamaguchi Isomaro

  Department Of Agricultural Chemistry Faculty Of Agricultural Science University Of Tokyo

• Kobayashi Masatomo

  The Inst. Of Phys. And Chem. Res.

• Koshioka Masaji

  Department Of Applied Physiology National Research Institute Of Vegetables Ornamental Plants And Tea

• Yamaguchi I

  Department Of Applied Biological Chemistry University Of Tokyo

• Ota Yasuo

  National Institute Of Agrobiological Resources

• Koshioka M

  Department Of Floriculture National Research Institute Of Vegetables Ornamental Plants And Tea (nivo

• Ota Yasuo

  National Institute Of Agricultural Sciences

• Takahashi Nobutaka

  Department Of Agricultural Chemistry Faculty Of Agricultural Science University Of Tokyo

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