Journal of Plant Research

, Volume 118, Issue 6, pp 439–442 | Cite as

Amaranthin in feather cockscombs is synthesized via glucuronylation at the cyclo-DOPA glucoside step in the betacyanin biosynthetic pathway

  • Nobuhiro Sasaki
  • Yutaka  Abe
  • Katsuhiro  Wada
  • Takatoshi Koda
  • Yukihiro Goda
  • Taiji Adachi
  • Yoshihiro  OzekiEmail author
Short Communication


Uridine 5′-diphosphate (UDP)-glucuronic acid: cyclo-DOPA 5-glucoside glucuronosyltransferase activity was detected in a crude extract prepared from the purple flowers of feather cockscombs. This suggests that the glucuronic acid moiety of amaranthin and its derivatives may be introduced at the cyclo-DOPA glucoside step, but not at the betanidin glucoside step.


Amaranthin Betacyanin cyclo-DOPA glucoside Feather cockscombs Glucuronosyltransferase 



This work was supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan (15657008) and by the National Institute of Floricultural Science (NIFS), the National Agricultural Research Organization (NARO), and the Japan Food Chemical Research Foundation.


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Copyright information

© The Botanical Society of Japan and Springer-Verlag 2005

Authors and Affiliations

  • Nobuhiro Sasaki
    • 1
  • Yutaka  Abe
    • 1
  • Katsuhiro  Wada
    • 2
  • Takatoshi Koda
    • 2
  • Yukihiro Goda
    • 3
  • Taiji Adachi
    • 4
  • Yoshihiro  Ozeki
    • 1
    Email author
  1. 1.Department of Biotechnology, Faculty of TechnologyTokyo University of Agriculture and TechnologyTokyoJapan
  2. 2.San-Ei Gen F.F.I. Inc.OsakaJapan
  3. 3.Division of Pharmacognosy, Phytochemistry and NarcoticsNational Institute of Health SciencesTokyoJapan
  4. 4.Venture Business Laboratory, Center for Advanced Science and InnovationOsaka UniversityOsakaJapan

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