Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2005 Aug;46(8):1423-7.
doi: 10.1093/pcp/pci127. Epub 2005 May 20.

Circadian rhythm of circumnutation in inflorescence stems of Arabidopsis

Kanae Niinuma  1 , Nobutaka Someya, Makoto Kimura, Isamu Yamaguchi, Hiroshi Hamamoto
Affiliations

Circadian rhythm of circumnutation in inflorescence stems of Arabidopsis

Kanae Niinuma et al. Plant Cell Physiol. 2005 Aug.

Abstract

We investigate the modulation of circumnutation in inflorescence stems of Arabidopsis to determine the circadian regulation of circumnutation. Under constant light conditions (LL), circumnutation speed in wild-type plants fluctuates, with the phase of the highest speed at subjective dawn; the period length is close to 24 h. toc1 appears to shorten the period and elf3 causes an arrhythmic phenotype in circumnutation speed in LL, suggesting that a common circadian clock may control both circumnutation speed and other circadian outputs. These results highlight for the first time a role for a circadian clock in the regulation of circumnutation based on genetic analysis of Arabidopsis.

PubMed Disclaimer