2 エンバクにおけるエリシターによるコリスミ酸ムターゼ誘導

DOI

書誌事項

タイトル別名
  • Induction of chorismate mutase by an elicitor in oat leaves

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説明

Avenanthramides, a series of substituted N-cinnamoylanthranilate derivatives, are phytoalexins in oats. Hydroxycinnamate and anthranilate are derived from the shikimate pathway which branches at chorismate. Chorismate mutase (CM) is the first enzyme of the branch that leads to phenylalanine and phenylpropanoid biosynthesis. The induction of CM was investigated in primary oat leaves using oligo-N-acetylchitooligosaccharides as elicitors. The CM activity started to increase 6 hr after elictitation and reached a maximum by 9 hr. Among the oligo-N-acetylchitooligosaccharides tested, tetra-, penta-, and hexasaccharides effectively induced the enzyme activity in a dose-dependent manner. The activity was separated into two major peaks by anion exchange chromatography indicating that CM consists of at least two isoforms. Comparison of untreated and elicitor-treated leaves revealed that only one CM isoform was responsive to the elicitor. These results suggest a regulatory role of CM in avenanthramide biosynthesis.

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詳細情報 詳細情報について

  • CRID
    1390282679399532800
  • NII論文ID
    110001853506
  • DOI
    10.18978/jscrpanb.35.0_11
  • ISSN
    21896313
    09191887
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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