Allelopathic substance exuded from a serious weed, germinating barnyard grass (Echinochloa crus-galli L.), roots

T. Yamamoto, K. Yokotani-Tomita, S. Kosemura, S. Yamamura, K. Yamada, K. Hasegawa

研究成果: Article査読

35 被引用数 (Scopus)

抄録

The allelopathy of a serious weed, barnyard grass (Echinochloa crus-galli L.), was investigated. Root exudates of young barnyard grass showed allelopathic effects and plant-selective activity and inhibited root elongation of all plants tested. With respect to shoot growth, the exudates did not show inhibition of barnyard grass only. The allelopathic substance was isolated and identified as p-hydroxymandelic acid by NMR. pHydroxymandelic acid strongly inhibited shoot growth and root elongation of all plants tested. The effects of three congeners of p-hydroxymandelic acid were tested on rice shoot growth. In the biological activity exhibited in rice, shoot growth was related to the hydroxyl groups.

本文言語English
ページ(範囲)65-67
ページ数3
ジャーナルJournal of Plant Growth Regulation
18
2
DOI
出版ステータスPublished - 1999 1月 1

ASJC Scopus subject areas

  • 農業および作物学
  • 植物科学

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