Journal Article

Circadian Rhythm of Circumnutation in Inflorescence Stems of <i>Arabidopsis</i>

Kanae Niinuma, Nobutaka Someya, Makoto Kimura, Isamu Yamaguchi and Hiroshi Hamamoto

in Plant and Cell Physiology

Published on behalf of Japanese Society of Plant Physiologists

Volume 46, issue 8, pages 1423-1427
Published in print August 2005 | ISSN: 0032-0781
Published online August 2005 | e-ISSN: 1471-9053 | DOI: http://dx.doi.org/10.1093/pcp/pci127
Circadian Rhythm of Circumnutation in Inflorescence Stems of Arabidopsis

More Like This

Show all results sharing these subjects:

  • Biochemistry
  • Molecular and Cell Biology
  • Plant Sciences and Forestry

GO

Show Summary Details

Preview

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.

Keywords: Arabidopsis; Circadian rhythm; Circumnutation; early flowering 3 (elf3); timing of cab expression 1 (toc1); CCR2, COLD CIRCADIAN RHYTHM RNA BINDING 2; elf3, early flowering 3; FFT-NLLS, fast Fourier transform-non-linear least squares; FRP, free-running period; LD, 12 h light, 12 h dark cycles; LL, constant white light condition; RAE, relative amplitude error; RT–PCR, reverse transcription–PCR; toc1, timing of cab expression1; UBQ10, UBIQUITIN10

Journal Article.  2929 words.  Illustrated.

Subjects: Biochemistry ; Molecular and Cell Biology ; Plant Sciences and Forestry

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.