Leaf-opening substance in the nyctinastic plant, albizzia julibrissin durazz

Minoru Ueda, Yoshiyuki Sawai, Yuichiro Shibazaki, Chitose Tashiro, Takashi Ohnuki, Shosuke Yamamura

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Cis-p-Coumaroylagmatine (1) was isolated from Albizzia julibrissin Durazz, a nyctinastic plant, as a leaf-opening substance. The compound was quite effective for opening the plant leaves at 5×10-6 M at night, but was not effective for other nyctinastic plants. The bioactive fraction with leaf-closing activity was also separated from the plant extract. Although the leaf-opening activity of the plant extract changed between the day and night, the content of 1 was almost constant through a 24-h day. These results suggest that the change in content of an unknown leaf-closing factor induced balance between the two leaf-movement factors through a 24-h day.

Original languageEnglish
Pages (from-to)2133-2137
Number of pages5
JournalBioscience, Biotechnology and Biochemistry
Issue number11
Publication statusPublished - 1998
Externally publishedYes


  • Albizzia julibrissin Durazz
  • Biological clock
  • Cis-p-coumaroylagmatine
  • Leaf-opening substance
  • Nyctinasty

ASJC Scopus subject areas

  • Biotechnology
  • Analytical Chemistry
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Organic Chemistry


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