Abstract
Potassium (2R,3R)-2,3,4-trihydroxy-2-methylbutanoate (1) was identified as a leaf-closing substance in the nyctinastic plant, Leucaena leucocephala. Compound 1 showed strong leaf-closing activity toward L. leucocephala and was not effective against other nyctinastic plants. The potassium ion was indispensable for the bioactivity of 1. Compound 1 gradually lost its bioactivity because of the exchange of the counter cation during isolation. A leaf-opening substance was also observed in the same plant.
Original language | English |
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Pages (from-to) | 51-56 |
Number of pages | 6 |
Journal | Bioscience, Biotechnology and Biochemistry |
Volume | 66 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2002 |
Externally published | Yes |
Keywords
- Leaf-closing substance
- Leucaena leucocephala
- Nyctinasty
- Potassium (2R,3R)-2,3,4-trihydroxy-2-methylbutanoate
ASJC Scopus subject areas
- Biotechnology
- Analytical Chemistry
- Biochemistry
- Applied Microbiology and Biotechnology
- Molecular Biology
- Organic Chemistry