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. 2024 Nov 15;120(6):2639–2655. doi: 10.1111/tpj.17134

Figure 10.

Figure 10

Model for PMR4‐mediated root hair callose deposition in plant adaptation to Pi deficiency.

PMR4 induces callose deposition in root hairs under phosphate deficiency, and thus contributes to shoot Pi accumulation and growth through enhancing Pi uptake and root‐to‐shoot transfer. This contribution alleviates phosphate starvation symptoms, such as root system area reduction and anthocyanin accumulation.