Leaf-closing substance in leucaena leucocephala

Yoshihiro Sohtome; Takashi Tokunaga; Katsuhiro Ueda; Shosuke Yamamura; Minoru Ueda

doi:10.1271/bbb.66.51

Leaf-closing substance in leucaena leucocephala

Yoshihiro Sohtome, Takashi Tokunaga, Katsuhiro Ueda, Shosuke Yamamura, Minoru Ueda

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

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
Pages (from-to)	51-56
Number of pages	6
Journal	Bioscience, Biotechnology and Biochemistry
Volume	66
Issue number	1
DOIs	https://doi.org/10.1271/bbb.66.51
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

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title = "Leaf-closing substance in leucaena leucocephala",

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.",

keywords = "Leaf-closing substance, Leucaena leucocephala, Nyctinasty, Potassium (2R,3R)-2,3,4-trihydroxy-2-methylbutanoate",

author = "Yoshihiro Sohtome and Takashi Tokunaga and Katsuhiro Ueda and Shosuke Yamamura and Minoru Ueda",

note = "Funding Information: We are indebted to the Ministry of Education, Science, Sports and Culture (Japan) for grant-in-aid for scientiˆc research (no. 13024267 and 12680598), and for ˆnancial support for pioneering research project in biotechnology given by the Ministry of Agriculture, Forestry and Fisheries, Sumitomo Foundation, Mishima-Kaiun Foundation, Naito Foundation and Inamori Foundation. And we thank Dr. Kazuhiko Nakamura (Biomolecules Department, National Institute of Bioscience and Human Technology) for collecting the plant material.",

year = "2002",

doi = "10.1271/bbb.66.51",

language = "English",

volume = "66",

pages = "51--56",

journal = "Bioscience, Biotechnology and Biochemistry",

issn = "0916-8451",

publisher = "Japan Society for Bioscience Biotechnology and Agrochemistry",

number = "1",

}

TY - JOUR

T1 - Leaf-closing substance in leucaena leucocephala

AU - Sohtome, Yoshihiro

AU - Tokunaga, Takashi

AU - Ueda, Katsuhiro

AU - Yamamura, Shosuke

AU - Ueda, Minoru

N1 - Funding Information: We are indebted to the Ministry of Education, Science, Sports and Culture (Japan) for grant-in-aid for scientiˆc research (no. 13024267 and 12680598), and for ˆnancial support for pioneering research project in biotechnology given by the Ministry of Agriculture, Forestry and Fisheries, Sumitomo Foundation, Mishima-Kaiun Foundation, Naito Foundation and Inamori Foundation. And we thank Dr. Kazuhiko Nakamura (Biomolecules Department, National Institute of Bioscience and Human Technology) for collecting the plant material.

PY - 2002

Y1 - 2002

N2 - 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.

AB - 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.

KW - Leaf-closing substance

KW - Leucaena leucocephala

KW - Nyctinasty

KW - Potassium (2R,3R)-2,3,4-trihydroxy-2-methylbutanoate

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U2 - 10.1271/bbb.66.51

DO - 10.1271/bbb.66.51

M3 - Article

C2 - 11866119

AN - SCOPUS:0036358286

VL - 66

SP - 51

EP - 56

JO - Bioscience, Biotechnology and Biochemistry

JF - Bioscience, Biotechnology and Biochemistry

SN - 0916-8451

IS - 1

ER -

Leaf-closing substance in leucaena leucocephala

Abstract

Keywords

ASJC Scopus subject areas

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