Hidden players in plant response to sulfur deficit and beyond: insights into the function of the proteins Sulfur Deficiency Induced and Response to Low Sulfur.

The LSU protein family plays a crucial role in plant growth and stress resilience, extending beyond sulfur deficiency responses, with recent evidence highlighting their broader functions.

• Why it matters: Understanding how plants adapt to sulfur scarcity is vital for improving crop resilience and nutrient management, yet many proteins involved remain poorly characterized.
• What they did: The review consolidates experimental data on the roles of Sulfur Deficiency Induced (SDI) and Response to Low Sulfur (LSU) proteins in sulfur metabolism, stress responses, and plant adaptation, emphasizing recent findings on LSU functions.
• The result: These insights reveal that LSU proteins contribute to plant development and stress tolerance beyond sulfur deficiency, opening new avenues for enhancing plant resilience under nutrient stress conditions.