Cycasin formation in tissue cultures of Japanese cycad

  • Tadera K
  • Gin'ya H
  • Sawada R
 et al. 
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Abstract

Calluses were produced from plant tissues of Japanese cycad (Cycas revoluta Thunb.). Its toxic component named cycasin, β-glucoside of methylazoxymethanol, was formed by the calluses only in the presence of exogenous methylazoxymethanol. A glucosyltransferase catalysing the formation of cycasin from UDP-glucose and methylazoxymethanol occurred in the calluses. The properties of this enzyme in embryo-derived callus and in leaf tissue were similar. © 1995.

Author-supplied keywords

  • Cycadaceae
  • Cycas revoluta
  • cell culture
  • cycasin
  • cycasin formation
  • glucosyltransferase
  • methylazoxymethyl-β-d-glucoside

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Authors

  • Kenjiro Tadera

  • Harumi Gin'ya

  • Rinpei Sawada

  • Yoshihiro Motani

  • Yoshikatu Aikawa

  • Akira Nozaki

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