Related Experiment Video
Updated: Jul 19, 2026

Rapid Analysis of Circadian Phenotypes in Arabidopsis Protoplasts Transfected with a Luminescent Clock Reporter
Published on: September 17, 2016
Diurnal regulation of plant growth
Kazunari Nozue1, Julin N Maloof
1Section of Plant Biology, College of Biological Sciences, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA.
Abstract:
Life occurs in an ever-changing environment. Some of the most striking and predictable changes are the daily rhythms of light and temperature. To cope with these rhythmic changes, plants use an endogenous circadian clock to adjust their growth and physiology to anticipate daily environmental changes. Most studies of circadian functions in plants have been performed under continuous conditions. However, in the natural environment, diurnal outputs result from complex interactions of endogenous circadian rhythms and external cues. Accumulated studies using the hypocotyl as a model for plant growth have shown that both light signalling and circadian clock mutants have growth defects, suggesting strong interactions between hypocotyl elongation, light signalling and the circadian clock. Here, we review evidence suggesting that light, plant hormones and the circadian clock all interact to control diurnal patterns of plant growth.
More Related Videos
Related Concept Videos
Biological Clocks and Seasonal Responses
Regulation of Transpiration by Stomata
Meristems and Plant Growth
Photoreceptors and Plant Responses to Light
Short-distance Transport of Resources
Circadian Rhythms and Gene Regulation

