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Updated: Sep 13, 2026

Geomagnetic Field (Gmf) and Plant Evolution: Investigating the Effects of Gmf Reversal on Arabidopsis thaliana Development and Gene Expression
Published on: November 30, 2015
Changes in gravitational forces induce modifications of gene expression in A. thaliana seedlings
S Centis-Aubay1, G Gasset, C Mazars
1Signaux et Messages Cellulaires chez les Végétaux, Centre National de la Recherche Scientifique, Université Paul Sabatier, 24 chemin de Borde Rouge, Auzeville, 31326 Castanet-Tolosan, France.
Abstract:
By comparing the expression patterns of selected genes from Arabidopsis thaliana (L.) Heynh. grown either at 1 g or on a clinostat (horizontally or vertically inverted, 1 rpm), and either used directly or after hypergravity stimulation, we have shown that the pattern of expression did not proceed in a stereotypical manner. Rather, the selected genes fell into different classes. These classes include (i) those insensitive to the gravitational conditions, (ii) those that are regulated in an opposite manner by hypergravity and clinostat conditions, (iii) those that are desensitised to hypergravity by long-term culture on a clinostat, and (iv) those enhanced by such a treatment. Our data suggest that rapid reorientation of gene expression is likely to occur in response to changes in the gravitational conditions.
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