Regulatory mechanism of plant nyctinastic movement: An ion channel-related plant behavior

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)


Leguminous plants open their leaves during the daytime and close them at night as if sleeping, a type of movement that follows circadian rhythms, and is known as nyctinasty. This movement is regulated by the drastic volume changes in two kinds of motor cell of the pulvinus, which is located at the bottom of the leaf stalk. The detailed mechanism of the ion channel-regulated volume change of the motor cells largely remains to be elucidated. In this chapter, we reviewed the mechanism of nyctinasty from two view points, electrophysiology of potassium channel and endogenous chemical substance triggering nyctinastic leaf closure. We focused on the nyctinasty of Samanea saman plant because almost all of physiological studies on nyctinasty have been carried out using this plant.

Original languageEnglish
Title of host publicationPlant Electrophysiology
Subtitle of host publicationSignaling and Responses
PublisherSpringer-Verlag Berlin Heidelberg
Number of pages18
ISBN (Electronic)9783642291104
ISBN (Print)3642291090, 9783642291098
Publication statusPublished - 2012 Feb 1

ASJC Scopus subject areas

  • Medicine(all)
  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)


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