MISC

2005年2月1日

Isolation and identification of an allelochemical exuded from germinating pea (Pisum sativum) seeds

Heterocycles
  • Keiko Higashinakasu
  • ,
  • Kosumi Yamada
  • ,
  • Hideyuki Shigemori
  • ,
  • Koji Hasegawa

65
2
開始ページ
267
終了ページ
271
記述言語
英語
掲載種別
DOI
10.3987/COM-04-10277

When pea seeds were cultured in a Petri dish together with cress seeds, the hypocotyl and root growth of cress was significantly inhibited, whereas the epicotyl growth of pea was promoted. These results suggest that the growth of each seeds is either inhibited or promoted with allelochemical(s) exuded from each seeds during seed germination. An allelochemical, which showed a growth-inhibiting activity against cress seeds, was isolated from the exudates of germinating pea seeds. It was identified as 6a-hydroxy-3-methoxy-8,9-methylenedioxy peterocarpan (pisatin) based on its 1H NMR spectrum. The endogenous pisatin level (22 mg/L) in the exudates from germinating pea seeds seems to be a good agreement with the exogenous concentration (&gt
3 mg/L) of pisatin required to inhibit the hypocotyl and root growth of cress. These results suggest that pisatin may play an important role in the allelopathy of pea seeds during germination. © 2005 Japan Institute of Heterocyclic Chemistry.

リンク情報
DOI
https://doi.org/10.3987/COM-04-10277

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