Rice NPH1 Homolongues, OsNPH1a and OsNPH1b, Are Differently Photoregulated

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概要

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• The members of nonphototropic hypocotyl 1(NPH1) family of genes in plants are considered to be the bluelight photoreceptors for photopropism. We isolated and characterized two NPH1 homologues from rice named as OsNPH1a and OsNPH1b. The predicted proteins of both OsNPH1 genes include LOV(LOV1 and LOV2)and protein kinase domains which are typically conserved regions in all the members of NPH1 family. Comparison of OsNPH1 apoproteins with those from other plant species revealed a close homology of OsNPH1a with Arabidopsis, maize and oat NPH1, while the OsNPH1b appeared to be more closer to the recently found Arabidopsis NPL1. These structural homologies indicate that NPH1 homologues can be grouped into two classes namely "NPH1 type" and "NPL1 type". Northern blot analysis showed that OsNPH1a was strongly expressed in coleoptiles, whereas OsNPH1b was highly expressed in leaves of dark-grown rice seedings. When the dark-grown seedlings were transferred to the continuous white light, the abundance of the OsNPH1a transcript in coleoptiles rapidly declined to the minimum levels, whereas the OsNPH1b transcript level in leaves gradually increased. These results lead us to conclude that expression of OsNPH1a and OsNPH1b is differently photoregulated in different tissues of rice seedlings.

• 日本植物生理学会の論文

著者

• 鐘ヶ江 健

  東京都立大学大学院理学研究科

• Takano Makoto

  Department of Physiology and Biophysics, Kyoto University Graduate School of Medicine

• KANEGAE Hiromi

  Department of Biological Sciences, Tokyo Metropolitan University

• WADA Masamitsu

  Department of Regulatory Biology, National Institute for Basic Biology

• Kanegae Hiromi

  Inst. Biol. Sci. Univ. Tsukuba・crest

• Yamamoto Kimiko

  Rice Microarray Research Group, National Institute of Agrobiological Sciences (NAIS)

• Sasaki Takuji

  Rice Microarray Research Group, National Institute of Agrobiological Sciences (NAIS)

• Sasaki T

  National Inst. Agrobiogical Sci. (nias) Ibaraki Jpn

• Sasaki T

  Department Of Molecular Genetics National Institute Of Agrobiological Sciences

• Yamamoto Kimiko

  The Institute of the Society for Techno-innovation of Agriculture, Forestry and Fisheries(STAFF)

• Wada M

  Tokyo Metropolitan University

• Wada Masamitsu

  Department Of Biological Sciences Graduate School Of Science Tokyo Metropolitan University

• Yamamoto Kimiko

  The Institute Of The Society For Techno-innovation Of Agriculture Forestry And Fisheries(staff)

• KANEGAE Hiromi

  National Institute of Agrobiological Resources

• SAVAZZINI Federica

  National Institute of Agrobiological Resources

• TAHIR M.

  Bio-Oriented Technology Research Advancement Institution

• KANEGAE Takeshi

  Tokyo Metropolitan University

• TAKANO Makoto

  National Institute of Agrobiological Resources

• Savazzini Federica

  Department of Molecular Genetics, National Institute of Agrobiological Resources

• Yano Masahiro

  Rice Genome Research Program, National Institute of Agrobiological Resources(NIAR)

• Kanegae Takeshi

  Department of Biology, Graduate School of Science, Tokyo Metropolitan University

• KANEGAE(KAJIYA) Hiromi

  National Institute of Agribiological Resources

• Takano Makoto

  Department Of Cardiology Tokyo Metropolitan Hiroo General Hospital

• Kanegae Takeshi

  Department Of Biological Sciences Graduate School Of Science Tokyo Metropolitan University

• 鐘ケ江 弘美

  農水省・生物研・分子遺伝

• Yamamoto Kimiko

  Rice Genome Program (rgp) Society For Techno-innovation Of Agriculture Forestry And Fisheries (staff

• Yano M

  Department Of Molecular Genetics National Institute Of Agrobiological Sciences

• Kanegae Hiromi

  Dept. Mol. Genetics Niar

• Kanegae Hiromi

  Department Of Biological Sciences Tokyo Metropolitan University

• Kajiya-kanegae Hiromi

  Dept. Of Mol. Genetics Natl. Inst. Of Agrobiological Resources

• Kanegae Hiromi

  Natl. Inst. Agrobiological Resources

• Yano Masahiro

  National Institute Of Agrobiological Resources (niar)

• Sasaki Takuji

  Rice Genome Program (rgp) National Institute Of Agrobiological Resources (niar)

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