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Main conclusion The accumulation of NH4+ in response to Fe deficiency plays a role not only in the remobilization of Fe from the root cell wall, but also in the transportation of Fe from root to shoot. Abstract Ammonium (NH4+) plays an important role in phosphorus-deficiency responses in rice, but its role in responses to Fe deficiency remains unknown. Here, we demonstrate that the accumulation...
Aims The present study was undertaken to investigate the mechanism underlying NaCl-alleviated Fe (iron) deficiency in Arabidopsis thaliana Col-0 (Columbia ecotype). Methods Six-week-old Col-0 with rosettes of similar diameters was grown in full-strength nutrient solution lacking Fe (Fe-deficient) or full-strength nutrient solution (Fe-sufficient) with or without 10 mM NaCl for 7 days. Roots were...
The physiological and molecular mechanisms leading to the competitive interactions between phosphorus (P) and metal elements are a matter of debate. In this study, we found that P deficiency can alleviate cadmium (Cd) toxicity in Arabidopsis thaliana (Col-0). Under P deficiency (−P), less Cd was accumulated in the plants and the root cell walls, indicating the operation of a P-deficiency-induced Cd...
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