Individual versus Combinatorial Effects of Silicon, Phosphate, and Iron Deficiency on the Growth of Lowland and Upland Rice Varieties.

Nanthana Chaiwong (1, 2, 3) , Chanakan Prom-U-Thai (1, 2, 3) , Nadia Bouain (4) , Benoît Lacombe (4) , Hatem Rouached (4)

1 Department of Plant and Soil Sciences
2 Faculty of Agriculture
3 CMU - Chiang Mai University
4 BPMP - Biochimie et Physiologie Moléculaire des Plantes

), and Pi root-to-shoot translocation in these two rice varieties grown under individual or combinatorial nutrient stress conditions were determined. The phenotypic, physiological, and molecular data of this study revealed an interesting tripartite Pi-Fe-Si homeostasis interaction that influences plant growth in contrasting manners in the two rice varieties. These results not only reveal the involvement of Si in modulating rice growth through an interaction with essential micro- and macronutrients, but, more importantly, they opens new research avenues to uncover the molecular basis of Pi-Fe-Si signaling crosstalk in plants.

Mots clés: iron; mineral nutrient homeostasis; rice ecotypes; silicon; development; rice; siloxane polymer; inorganic phosphates

Mots clés: développement; oryza; absorption du fer; silicone; phosphate

Domaines: Biologie végétale

Nanthana Chaiwong, Chanakan Prom-U-Thai, Nadia Bouain, Benoît Lacombe, Hatem Rouached. Individual versus Combinatorial Effects of Silicon, Phosphate, and Iron Deficiency on the Growth of Lowland and Upland Rice Varieties.. International Journal of Molecular Sciences, 2018, 19 (3), pp.899. ⟨10.3390/ijms19030899⟩. ⟨hal-01764386⟩