PIF4 Integrates Multiple Environmental and Hormonal Signals for Plant Growth Regulation in Arabidopsis
| Autor: | Eunkyoo Oh, Hyunmo Choi |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
signaling integration Circadian clock Arabidopsis PIF4 Regulator Plant Development Endogeny Cell Growth Processes Biology high temperature 03 medical and health sciences chemistry.chemical_compound Plant Growth Regulators Gene Expression Regulation Plant Auxin Circadian Clocks Botany Basic Helix-Loop-Helix Transcription Factors Brassinosteroid Gene Regulatory Networks Molecular Biology Transcription factor chemistry.chemical_classification Arabidopsis Proteins fungi Environmental Exposure Cell Biology General Medicine biology.organism_classification Cell biology 030104 developmental biology chemistry brassinosteroid Minireview Signal transduction light Signal Transduction |
| Zdroj: | Molecules and Cells |
| ISSN: | 0219-1032 1016-8478 |
| DOI: | 10.14348/molcells.2016.0126 |
| Popis: | As sessile organisms, plants must be able to adapt to the environment. Plants respond to the environment by adjusting their growth and development, which is mediated by sophisticated signaling networks that integrate multiple environmental and endogenous signals. Recently, increasing evidence has shown that a bHLH transcription factor PIF4 plays a major role in the multiple signal integration for plant growth regulation. PIF4 is a positive regulator in cell elongation and its activity is regulated by various environmental signals, including light and temperature, and hormonal signals, including auxin, gibberellic acid and brassinosteroid, both transcriptionally and post-translationally. Moreover, recent studies have shown that the circadian clock and metabolic status regulate endogenous PIF4 level. The PIF4 transcription factor cooperatively regulates the target genes involved in cell elongation with hormone-regulated transcription factors. Therefore, PIF4 is a key integrator of multiple signaling pathways, which optimizes growth in the environment. This review will discuss our current understanding of the PIF4-mediated signaling networks that control plant growth. |
| Databáze: | OpenAIRE |
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