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학술저널
저자정보
Sebei, Khaled (Laboratoire de Biochimie des Lipides et Interactions avec les Macromolecules, Faculte des Sciences de Tunis, Campus Universitaire) Debez, Ahmed (Laboratoire d'Adaptation des Plantes aux Stresses Abiotiques, Centre de Biotechnologie a la Technnopole de Borj-Cedria) Herchi, Wahid (Laboratoire de Biochimie des Lipides et Interactions avec les Macromolecules, Faculte des Sciences de Tunis, Campus Universitaire) Boukhchina, Sadok (Laboratoire de Biochimie des Lipides et Interactions avec les Macromolecules, Faculte des Sciences de Tunis, Campus Universitaire) Kallel, Habib (Laboratoire de Biochimie des Lipides et Interactions avec les Macromolecules, Faculte des Sciences de Tunis, Campus Universitaire)
저널정보
한국식물학회 식물학회지 식물학회지 제50권 제4호
발행연도
2007.1
수록면
447 - 454 (8page)

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Because of its high contents of protein, ${\alpha}-linolenic-rich$ oil, lignans, and fiber, demand is increasing for flax (Linum usitatissimum L.) and flax seed oil as a food source. In this comparative survey, we examined germination and the mobilization of seed storage products (lipids and soluble proteins) of 3-d-old seedlings from two flax cultivars (N 51 and H 52) challenged with moderate salinity (up to 200 mM NaCl). At the highest salt concentration, germination appeared to be cultivar-dependent, with that of 'N 51' being less impaired and delayed than in 'H 52'. Sodium chloride inhibited germination via osmotic and toxic effects, so that seed viability was altered, especially in 'H 52'. At 200 mM NaCl, lipid mobilization was delayed in the earliest germination phases. This response was associated with increased proportions of linolenic acid contents in both cultivars and more linolenic acid-rich molecular species of TAGs. Irrespective of the salt level, soluble protein contents in both cultivars decreased over time, although a salt-related precocity of protein degradation occurred at 200mM NaCl.

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