Leaf-closing Substance inLeucaena leucocephala

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2002 English Publisher:Oxford University Press (OUP)Journal:Bioscience, Biotechnology, and Biochemistry, volume 66, pages 51-56 (issn: 0916-8451, eissn: 1347-6947,

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Authors: Yoshihiro, Sohtome; Takashi, Tokunaga; Katsuhiro, Ueda; Shosuke, Yamamura; Minoru, Ueda;

doi: 10.1271/bbb.66.51

pmid: 11866119

Leaf-closing Substance inLeucaena leucocephala

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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.

Related Organizations

Keio University
Japan
University of the Ryukyus
Japan

Keywords

Plant Leaves, Molecular Structure, Plant Extracts, Sugar Acids, Fabaceae

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