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Arabidopsis thaliana tolerates iron deficiency more than Thellungiella salsuginea by inducing metabolic changes at the root level

100%

Msilini N., Ferhi J., Chebbi M., Lachaal M., Ouerghi Z.

Acta Biologica Cracoviensia. Series Botanica

2015

tom 57

nr 1

Several studies have used A. thaliana as a model to identify the physiological and molecular mechanisms underlying iron deficiency tolerance in plants. Here, Arabidopsis thaliana and Thellungiella salsuginea were used to investigate the differential responses to iron deficiency of these two species. Plants were cultivated in hydroponic medium containing 5 or 0 μM Fe, for 10 days. Results showed that rosette biomass was more reduced in T. salsuginea than in A. thaliana when grown on Fe-deficient medium. As a marker for iron deficiency tolerance, the induction of ferric chelate reductase (FCR) and phosphoenolpyruvate carboxylase (PEPC) activities was observed only in A. thaliana roots. In addition, we found that the accumulation of phenolic acids in roots of N1438 ecotype of A. thaliana was stimulated by Fe deficiency. Furthermore, an increase of flavonoids content in the root and exudates was observed under Fe-deficiency in this ecotype. Unlike other abiotic stresses, it appears that iron deficiency effects were more pronounced in Thellungiella than in Arabidopsis. The higher tolerance of the Arabidopsis plant to iron deficiency may be due to the metabolic changes occurring in the roots.

Effect of salt stress on the antimicrobial activity of Ruta chalepensis essential oils

72%

Amdouni T., Abdallah S. B., Msilini N., Merck F., Chebbi M., Lachaal M., Karray-Boruaoui N., Ouerghi Z., Fernandez X.

Acta Physiologiae Plantarum

2016

tom 38

nr 06

Ograniczanie wyników

1 Acta Biologica Cracoviensia. Series Botanica

1 Acta Physiologiae Plantarum

2 Chebbi M.

2 Lachaal M.

2 Msilini N.

2 Ouerghi Z.

1 Abdallah S. B.

1 Amdouni T.

1 Ferhi J.

1 Fernandez X.

1 Karray-Boruaoui N.

1 Merck F.

1 2016

1 2015

Wyniki wyszukiwania

Arabidopsis thaliana tolerates iron deficiency more than Thellungiella salsuginea by inducing metabolic changes at the root level

Effect of salt stress on the antimicrobial activity of Ruta chalepensis essential oils