| Circadian clock and PIF4-mediated external coincidence mechanism coordinately integrates both of the cues from seasonal changes in photoperiod and temperature to regulate plant growth in Arabidopsis thaliana. | |
| | |
MedLine Citation:
|
PMID: 23154509 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
In Arabidopsis thaliana, the circadian clock regulates the photoperiodic plant growth including the elongation of hypocotyls in a short-days (SDs)-specific manner. The clock-controlled PHYTOCHROME-INTERACTING FACTOR 4 (PIF4) gene encoding a basic helix-loop-helix (bHLH) transcription factor plays crucial roles in this regulation. The SDs-specific elongation of hypocotyls is best explained by accumulation of the active PIF4 proteins at the end of night specifically in SDs due to coincidence between internal (circadian clock) and external (photoperiod) cues. However, this external coincidence model was challenged with the recent finding that the elongation of hypocotyls is markedly promoted at high growth temperature (28 ˚C) even in long-days (LDs), implying that the model to explain the photoperiodic response of plant architecture appears to be conditional on ambient temperature. With regard to this problem, the results of this and previous studies showed that the model holds under a wide range of ambient temperature conditions (16 ˚C to 28 ˚C). We propose that the circadian clock and PIF4-mediated external coincidence mechanism coordinately integrates both of the cues from seasonal changes in photoperiod and temperature to regulate plant growth in natural habitats. |
| | |
Authors:
|
Yuichi Nomoto; Saori Kubozono; Miki Miyachi; Norihito Nakamichi; Takeshi Mizuno; Takafumi Yamashino |
Related Documents
:
|
23295179 - Biocide leaching from cba treated wood - a mechanistic interpretation. 23285179 - Detection and plant monitoring programs: lessons from an intensive survey of asclepias ... 23467719 - Diurnal patterns of gas-exchange and metabolic pools in tundra plants during three phas... 23700269 - Human disturbance threats the red-listed macrolichen seirophora villosa (ach.) frödén... 23240679 - Exploring the role of shelf sediments in the arctic ocean in determining the arctic con... 20709419 - Ochratoxigenic fungi and ochratoxin a in cocoa during farm processing. 20550579 - The effect of resource quantity and resource stoichiometry on microbial carbon-use-effi... 8250949 - Detection of phosphodiester resonances in the perfused heart from vertebrate ectotherms... 21238219 - European dune slacks: strong interactions of biology, pedogenesis and hydrology. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-11-15 |
Journal Detail:
|
Title: Plant signaling & behavior Volume: 8 ISSN: 1559-2324 ISO Abbreviation: Plant Signal Behav Publication Date: 2012 Nov |
Date Detail:
|
Created Date: 2012-11-16 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101291431 Medline TA: Plant Signal Behav Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Laboratory of Molecular and Functional Genomics; School of Agriculture; Nagoya University; Nagoya, Japan. |
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: Possible function of VIPP1 in thylakoids: Protection but not formation?
Next Document: CDC48 function during TMV infection: Regulation of virus movement and replication by degradation?