Responses of Arabidopsis thaliana to bicarbonate-induced iron deficiency

• Autorzy: Msilini N. , Attia H. , Bouraoui N. , M'rah S. , Kosouri R. , Lachaal M. , Ouerghi Z.
• Języki publikacji: EN

Abstrakty

EN

Morpho-physiological and biochemical responses of Arabidopsis thaliana (accession N1438) to bicarbonate-induced iron deficiency were investigated. Plants were grown in cabinet under controlled conditions, in a nutrient solution containing 5 µM Fe, added or not with 10 mM NaHCO₃. After 30 days, bicarbonate-treated plants displayed significantly lower biomass, leaf number and leaf surface area as compared to control plants, and slight yellowing of their younger leaves was observed. Potassium (K⁺) content was not modified by bicarbonate treatment in roots, whereas it was significantly diminished in shoots. Their content in ferrous iron (Fe²⁺) and in leaf total chlorophylls was noticeably lower than in control plants. Root Fe(III)-chelate reductase and phosphoenolpyruvate carboxylase (PEPC) activities were significantly enhanced, but leaf ribulose 1.5-bisphosphate carboxylase (Rubisco) activity was decreased.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2009
• Tom: 31
• Numer: 4
• Opis fizyczny: p.849-853,fig.,ref.

Twórcy

autor

Msilini N.

• Unite de Physiologie et de Biochimie de la Tolerance au Sel chez les Plantes, Faculte des Sciences de Tunis, Campus Universitaire, 2092 Tunis, Tunisia
• Physiologie et de Biochimie de la Tolerance au Sel chez les Plantes, Faculte des Sciences de Tunis, Campus Universitaire, 2092 Tunis, El Manar, Tunisia

autor

Attia H.

• Unite de Physiologie et de Biochimie de la Tolerance au Sel chez les Plantes, Faculte des Sciences de Tunis, Campus Universitaire, 2092 Tunis, Tunisia

autor

Bouraoui N.

• Unite de Physiologie et de Biochimie de la Tolerance au Sel chez les Plantes, Faculte des Sciences de Tunis, Campus Universitaire, 2092 Tunis, Tunisia

autor

M'rah S.

• Unite de Physiologie et de Biochimie de la Tolerance au Sel chez les Plantes, Faculte des Sciences de Tunis, Campus Universitaire, 2092 Tunis, Tunisia

autor

Kosouri R.

• Laboratorie d'Adaptation des Plantes aux Stress Abiotiques, Centre de Biotechnologies de la Technopole de Borj-Cedria (CBBC), BP 901, 2050 Hammam-Lif, Tunisia

autor

Lachaal M.

• Unite de Physiologie et de Biochimie de la Tolerance au Sel chez les Plantes, Faculte des Sciences de Tunis, Campus Universitaire, 2092 Tunis, Tunisia

autor

Ouerghi Z.

• Unite de Physiologie et de Biochimie de la Tolerance au Sel chez les Plantes, Faculte des Sciences de Tunis, Campus Universitaire, 2092 Tunis, Tunisia

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