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2009 | 31 | 4 |

Tytuł artykułu

Responses of Arabidopsis thaliana to bicarbonate-induced iron deficiency

Warianty tytułu

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.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

31

Numer

4

Opis fizyczny

p.849-853,fig.,ref.

Twórcy

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

Bibliografia

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Bibliografia

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