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J Plant Physiol. 2014 Jan 1;171(1):55-64. doi: 10.1016/j.jplph.2013.07.006. Epub 2013 Aug 30.

Osmotic stress alters the balance between organic and inorganic solutes in flax (Linum usitatissimum).

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  • 1Université de Picardie Jules Verne, EA 3900-BioPI Biologie des Plantes et Innovation, IUT d'Amiens, Département Génie Biologique, Avenue des Facultés, Le Bailly et Faculté de Pharmacie, 1, rue des Louvels, 80025 Amiens cedex, France.


Flax (Linum usitatissimum) is grown for its oil and its fiber. This crop, cultivated in temperate regions, has seen a renewed interest due to the presence of abundant molecules of interest for many applications. Little information is available about the behavior of flax during osmotic stress; yet this is considered a major stress that causes significant yield losses in most crops. To control the presence of this stress better, flax behavior was investigated following the application of osmotic stress and the response was examined by applying increasing concentrations of PEG 8000. This resulted in the reorganization of 32 metabolites and 6 mineral ions in the leaves. The analysis of these two types of solute highlighted the contrasting behavior between a higher metabolite content (particularly fructose, glucose and proline) and a decrease in mineral ions (especially nitrate and potassium) following PEG treatment. However, this reorganization did not lead to a greater accumulation of solutes, with the total amount remaining unchanged in leaves during osmotic stress.

Copyright © 2013 Elsevier GmbH. All rights reserved.


Flax; GC–MS; Inorganic solutes; Metabolite profiling; Osmotic stress

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