Next Article in Journal
Segmental and Tandem Duplications Driving the Recent NBS-LRR Gene Expansion in the Asparagus Genome
Next Article in Special Issue
Beyond Transcription: Fine-Tuning of Circadian Timekeeping by Post-Transcriptional Regulation
Previous Article in Journal
Molecular Processes Connecting DNA Methylation Patterns with DNA Methyltransferases and Histone Modifications in Mammalian Genomes
Previous Article in Special Issue
The Plant Circadian Clock and Chromatin Modifications
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessReview

A Functional Connection between the Circadian Clock and Hormonal Timing in Arabidopsis

1 and 1,2,*
1
Center for Research in Agricultural Genomics (CRAG), Consortium CSIC-IRTA-UAB-UB, Campus UAB, Bellaterra, 08193 Barcelona, Spain
2
Consejo Superior de Investigaciones Científicas, 08028 Barcelona, Spain
*
Author to whom correspondence should be addressed.
Genes 2018, 9(12), 567; https://doi.org/10.3390/genes9120567
Received: 15 October 2018 / Revised: 20 November 2018 / Accepted: 20 November 2018 / Published: 23 November 2018
(This article belongs to the Special Issue Genetic Regulation of Circadian Rhythm in Plants)
  |  
PDF [1306 KB, uploaded 23 November 2018]
  |     |  

Abstract

The rotation of the Earth entails changes in environmental conditions that pervasively influence an organism’s physiology and metabolism. An internal cellular mechanism known as the circadian clock acts as an internal timekeeper that is able to perceive the changes in environmental cues to generate 24-h rhythms in synchronization with daily and seasonal fluctuations. In plants, the circadian clock function is particularly important and regulates nearly every aspect of plant growth and development as well as proper responses to stresses. The circadian clock does not function in isolation but rather interconnects with an intricate network of different pathways, including those of phytohormones. Here, we describe the interplay of the circadian clock with a subset of hormones in Arabidopsis. The molecular components directly connecting the circadian and hormone pathways are described, highlighting the biological significance of such connections in the control of growth, development, fitness, and survival. We focus on the overlapping as well as contrasting circadian and hormonal functions that together provide a glimpse on how the Arabidopsis circadian system regulates hormone function in response to endogenous and exogenous cues. Examples of feedback regulation from hormone signaling to the clock are also discussed. View Full-Text
Keywords: circadian clock; phytohormones; growth and development; Arabidopsis thaliana circadian clock; phytohormones; growth and development; Arabidopsis thaliana
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Singh, M.; Mas, P. A Functional Connection between the Circadian Clock and Hormonal Timing in Arabidopsis. Genes 2018, 9, 567.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Genes EISSN 2073-4425 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top