Reduction of geomagnetic field (GMF) to near null magnetic field (NNMF) affects some Arabidopsis thaliana clock genes amplitude in a light independent manner

Reduction of geomagnetic field (GMF) to near null magnetic field (NNMF) affects some Arabidopsis thaliana clock genes amplitude in a light independent manner

Copyright © 2018 Elsevier GmbH. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Journal of plant physiology. - 1979. - 232(2019) vom: 01. Jan., Seite 23-26
1. Verfasser: Agliassa, Chiara (VerfasserIn)
Weitere Verfasser: Maffei, Massimo E
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Journal of plant physiology
Schlagworte:Journal Article Arabidopsis thaliana Clock genes Geomagnetic field Internal clock Near null magnetic field Arabidopsis Proteins DNA-Binding Proteins GI protein, Arabidopsis LHY protein, Arabidopsis mehr... PRR7 protein, Arabidopsis Repressor Proteins Transcription Factors
Beschreibung
Zusammenfassung:Copyright © 2018 Elsevier GmbH. All rights reserved.
Plant endogenous clock consists of self-sustained interlocked transcriptional/translational feedback loops whose oscillation regulates many circadian processes, including gene expression. Its free running rhythm can be entrained by external cues, which can influence all clock parameters. Among external cues, the geomagnetic field (GMF) has been demonstrated to influence plant growth and development. We evaluated the quantitative expression (qRT-PCR) of three clock genes (LHY, GI and PRR7) in time-course experiments under either continuous darkness (CD) or long days (LD) conditions in Arabidopsis thaliana seedlings exposed to GMF (∼40 μT) and Near Null Magnetic Field (NNMF; ∼40 nT) conditions. Under both LD and CD conditions, reduction of GMF to NNMF prompted a significant increase of the gene expression of LHY and PRR7, whereas an opposite trend was found for GI gene expression. Exposure of Arabidopsis to NNMF altered clock gene amplitude, regardless the presence of light, by reinforcing the morning loop. Our data are consistent with the existence of a plant magnetoreceptor that affects the Arabidopsis endogenous clock
Beschreibung:Date Completed 22.01.2019
Date Revised 30.09.2020
published: Print-Electronic
Citation Status MEDLINE
ISSN:1618-1328
DOI:10.1016/j.jplph.2018.11.008