The Efficiency of Arabidopsis Thaliana (Brassicaceae) Root Hairs in Phosphorus Acquisition

The study on Arabidopsis thaliana demonstrated that root hairs significantly enhanced phosphorus acquisition in low-phosphorus conditions by increasing root surface area, particularly benefiting the WS genotype with longer and denser root hairs. While root hairs improved phosphorus uptake efficiency without high respiratory costs in low-phosphorus environments, they had little impact in high-phosphorus conditions. The research highlighted the adaptive advantage of root hairs in nutrient-poor soils, although the exact costs of root hair development were not fully determined.