Two distinct phases of glandular trichome development in hop (Humulus lupulus L.)

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Hop bitter resins and essential oils are biosynthesized and accumulated in lupulin glands of hop (<i>Humulus lupulus</i> L.). Valerophenone synthase (VPS) is involved in the first steps of biosynthesis of bitter resins, and the <i>VPS</i> gene is specifically expressed in lupulin glands on bracteoles and leaves. In this study, spatial and temporal expression of the <i>VPS</i> gene was studied using <i>in-situ</i> hybridization. No gene signals were observed in the early stage of lupulin gland development, but strong expression was observed when the cuticle was slightly detached from the glandular head cells. Expression levels were remarkably reduced with accumulation of hop bitter resins and essential oils in the sub-cuticular space. The findings suggest that development of lupulin glands is strictly divided into a growth phase and biosynthetic-secretory phase.

収録刊行物

  • Plant biotechnology  

    Plant biotechnology 23(5), 493-496, 2006-12-01 

    Japanese Society for Plant Cell and Molecular Biology

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各種コード

  • NII論文ID(NAID)
    10021909562
  • NII書誌ID(NCID)
    AA11250821
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • ISSN
    13424580
  • NDL 記事登録ID
    8571168
  • NDL 雑誌分類
    ZR3(科学技術--生物学--植物)
  • NDL 請求記号
    Z54-J126
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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