Sulfur in dialogue with phosphorus, nitrogen, and iron: regulatory networks in plant nutrient homeostasis.

Reciprocal regulatory networks coordinate sulfur with phosphorus, nitrogen, and iron in plants, with key transcription factors controlling nutrient homeostasis in Arabidopsis thaliana.

• Why it matters: Understanding these interactions is crucial because nutrient homeostasis is complex and essential for plant growth, resilience, and crop productivity, yet remains incompletely understood.
• What they did: The study reviews mechanistic insights from Arabidopsis thaliana, focusing on shared regulatory circuits and hub transcription factors like SULFUR LIMITATION 1, PHOSPHATE STARVATION RESPONSE 1, NIN-LIKE PROTEIN 7, and FER-LIKE IRON DEFICIENCY-INDUCED FACTOR.
• The result: These findings reveal conserved and species-specific regulatory networks, offering systems-level understanding and potential strategies to enhance crop nutrient efficiency and stress tolerance.