Context-dependent siderophore exploitability shapes microbial community structure.

Siderophore exploitability in microbial communities depends on context, with Corynebacterium glutamicum accessing diverse xenosiderophores but facing constraints, affecting community stability.

• Why it matters: Understanding how siderophores influence iron competition is crucial because they shape microbial interactions and community structure, yet their ecological roles remain unclear.
• What they did: The study used a synthetic microbial community and mathematical modeling to examine how siderophore compatibility, spatial structure, and initial composition impact iron access and community dynamics.
• The result: Findings reveal that siderophores can either promote coexistence or exclusion depending on the context, with spatial organization and community composition playing key roles in these outcomes.