Plant growth inhibitory activity of L-Canavanine and its mode of action

Naoko Nakajima, Syuntaro Hiradate, Yoshiharu Fujii

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

L-Canavanine is a nonprotein amino acid contained in jack bean [Canavalia ensiformis (L.) DC] and shows a plant inhibitory effect. The inhibitory effect was determined by an immersion test and a microdrop test that employed rice seedlings. L-Canavanine inhibited elongation of the second leaf sheath of rice seedlings more than other natural bioactive substances, such as salicylic acid and cinnamic acid. The modified microdrop test revealed that the mode of action of L-canavanine had no relation to gibberellin synthesis. In the microdrop test, the inhibitory effect of L-canavanine was decreased by simultaneous addition of L-arginine, an analog of L-canavanine. Free amino acid analysis of rice shoots clearly showed that L-canavanine induced an unusual accumulation of L-arginine. However, accumulation of L-arginine did not cause the inhibitory effect on plant growth. These results suggest that the mechanism of inhibition of L-canavanine is closely related to the inhibition of arginine metabolism.

Original languageEnglish
Pages (from-to)19-31
Number of pages13
JournalJournal of Chemical Ecology
Volume27
Issue number1
DOIs
Publication statusPublished - Apr 7 2001
Externally publishedYes

Fingerprint

Canavanine
canavanine
mechanism of action
plant growth
rice
Growth
arginine
Arginine
amino acid
Canavalia ensiformis
seedling
salicylic acid
Seedlings
Canavalia
testing
shoot
nonprotein amino acids
metabolism
Enzyme inhibition
Gibberellins

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Biochemistry

Cite this

Plant growth inhibitory activity of L-Canavanine and its mode of action. / Nakajima, Naoko; Hiradate, Syuntaro; Fujii, Yoshiharu.

In: Journal of Chemical Ecology, Vol. 27, No. 1, 07.04.2001, p. 19-31.

Research output: Contribution to journalArticle

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