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Early transcriptomic changes induced by magnesium deficiency in Arabidopsis thaliana reveal the alteration of circadian clock gene expression in roots and the triggering of abscisic acid-responsive genes

(2010) NEW PHYTOLOGIST. 187(1). p.119-131
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Abstract
Plant growth and development ultimately depend on environmental variables such as the availability of essential minerals. Unravelling how nutrients affect gene expression will help to understand how they regulate plant growth. This study reports the early transcriptomic response to magnesium (Mg) deprivation in Arabidopsis. Whole-genome transcriptome was studied in the roots and young mature leaves 4, 8 and 28 h after the removal of Mg from the nutrient solution. The highest number of regulated genes was first observed in the roots. Contrary to other mineral deficiencies, Mg depletion did not induce a higher expression of annotated genes in Mg uptake. Remarkable responses include the perturbation of the central oscillator of the circadian clock in roots and the triggering of abscisic acid (ABA) signalling, with half of the up-regulated Mg genes in leaves being ABA-responsive. However, no change in ABA content was observed. The specificity of the response of some Mg-regulated genes was challenged by studying their expression after other mineral deficiencies and environmental stresses. The possibility to develop markers for Mg incipient deficiency is discussed here.
Keywords
transcriptomics, FAMILY, STRESS, METAL TRANSPORTER, BEAN-PLANTS, mineral nutrition, magnesium (Mg) deficiency, biomarkers, Arabidopsis thaliana

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Chicago
Hermans, Christian, Marnik Vuylsteke, Frederik Coppens, Adrain Craciun, Dirk Inzé, and Nathalie Verbruggen. 2010. “Early Transcriptomic Changes Induced by Magnesium Deficiency in Arabidopsis Thaliana Reveal the Alteration of Circadian Clock Gene Expression in Roots and the Triggering of Abscisic Acid-responsive Genes.” New Phytologist 187 (1): 119–131.
APA
Hermans, Christian, Vuylsteke, M., Coppens, F., Craciun, A., Inzé, D., & Verbruggen, N. (2010). Early transcriptomic changes induced by magnesium deficiency in Arabidopsis thaliana reveal the alteration of circadian clock gene expression in roots and the triggering of abscisic acid-responsive genes. NEW PHYTOLOGIST, 187(1), 119–131.
Vancouver
1.
Hermans C, Vuylsteke M, Coppens F, Craciun A, Inzé D, Verbruggen N. Early transcriptomic changes induced by magnesium deficiency in Arabidopsis thaliana reveal the alteration of circadian clock gene expression in roots and the triggering of abscisic acid-responsive genes. NEW PHYTOLOGIST. 2010;187(1):119–31.
MLA
Hermans, Christian, Marnik Vuylsteke, Frederik Coppens, et al. “Early Transcriptomic Changes Induced by Magnesium Deficiency in Arabidopsis Thaliana Reveal the Alteration of Circadian Clock Gene Expression in Roots and the Triggering of Abscisic Acid-responsive Genes.” NEW PHYTOLOGIST 187.1 (2010): 119–131. Print.
@article{1008324,
  abstract     = {Plant growth and development ultimately depend on environmental variables such as the availability of essential minerals. Unravelling how nutrients affect gene expression will help to understand how they regulate plant growth.
This study reports the early transcriptomic response to magnesium (Mg) deprivation in Arabidopsis. Whole-genome transcriptome was studied in the roots and young mature leaves 4, 8 and 28 h after the removal of Mg from the nutrient solution.
The highest number of regulated genes was first observed in the roots. Contrary to other mineral deficiencies, Mg depletion did not induce a higher expression of annotated genes in Mg uptake. Remarkable responses include the perturbation of the central oscillator of the circadian clock in roots and the triggering of abscisic acid (ABA) signalling, with half of the up-regulated Mg genes in leaves being ABA-responsive. However, no change in ABA content was observed.
The specificity of the response of some Mg-regulated genes was challenged by studying their expression after other mineral deficiencies and environmental stresses. The possibility to develop markers for Mg incipient deficiency is discussed here.},
  author       = {Hermans, Christian and Vuylsteke, Marnik and Coppens, Frederik and Craciun, Adrain and Inz{\'e}, Dirk and Verbruggen, Nathalie},
  issn         = {0028-646X},
  journal      = {NEW PHYTOLOGIST},
  keyword      = {transcriptomics,FAMILY,STRESS,METAL TRANSPORTER,BEAN-PLANTS,mineral nutrition,magnesium (Mg) deficiency,biomarkers,Arabidopsis thaliana},
  language     = {eng},
  number       = {1},
  pages        = {119--131},
  title        = {Early transcriptomic changes induced by magnesium deficiency in Arabidopsis thaliana reveal the alteration of circadian clock gene expression in roots and the triggering of abscisic acid-responsive genes},
  url          = {http://dx.doi.org/10.1111/j.1469-8137.2010.03258.x},
  volume       = {187},
  year         = {2010},
}

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