| Light at night resynchronizes the evening-phased rhythms of TOC1 and ELF4 in Phaseolus vulgaris. | |
| | |
MedLine Citation:
|
PMID: 22284718 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
Circadian clocks regulate the adaptation of the organisms' physiology to the environmental light-dark cycles. Photic resetting of the clock differs among plant species. In Arabidopsis thaliana, morning-phased genes are not responsive to light signals at night, while in Phaseolus vulgaris, morning-phased genes are responsive to light at trough phases that are reached during the night. In order to explore this further, in this work we investigated the light-responsiveness at night of two P. vulgaris evening phased genes, the orthologs of TOC1 and ELF4. Our results demonstrate that the oscillation of their expression is symphasic under all applied photic conditions. Thus, under photoperiod peak phases are obtained in the evening (LD 12:12) or early at night (LD 6:18). Light application at the beginning of the night under LD 6:18 results in a phase shift of the PvTOC1 and PvELF4 oscillation, while at the end of the night the phase remains unchanged. Moreover, when light is applied at the narrow time window of the peak phase, a significant transient increase in the expression of both PvTOC1 and PvELF4 is caused. These results indicate that, depending on the plant species, evening-phased genes may also participate in the resetting of the circadian clock machinery by light. |
| | |
Authors:
|
Angeliki Galeou; Anastasia Prombona |
Related Documents
:
|
11130648 - Curvature and range of motion of the cervical spine after laminaplasty. 19144558 - The relation between the application angle of spinal manipulative therapy (smt) and res... 20683388 - Mechanical function of vertebral body osteophytes, as revealed by experiments on cadave... 2134418 - Motion characteristic of the normal lumbar spine in young adults: instantaneous axis of... 19865428 - Red-band holographic storage in azo dye sensitized by noncoherent light. 22396098 - The influence of traffic noise on vertebrate road crossing through underpasses. |
Publication Detail:
|
Type: Journal Article Date: 2012-01-03 |
Journal Detail:
|
Title: Plant science : an international journal of experimental plant biology Volume: 184 ISSN: 1873-2259 ISO Abbreviation: Plant Sci. Publication Date: 2012 Mar |
Date Detail:
|
Created Date: 2012-01-30 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9882015 Medline TA: Plant Sci Country: Ireland |
Other Details:
|
Languages: eng Pagination: 141-7 Citation Subset: IM |
Copyright Information:
|
Copyright © 2011 Elsevier Ireland Ltd. All rights reserved. |
Affiliation:
|
Institute of Biology, Chronobiology Laboratory, NCSR Demokritos, 15310 Aghia Paraskevi, Attiki, Greece. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: N-Acylethanolamines and related compounds: Aspects of metabolism and functions.
Next Document: Abstracts presented at the 7th World Alliance for Risk Factor Surveillance (WARFS) Global Conference...