Author

Jan Mašek

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Open access Jul 2026

Utilization of cyanobacterial siderophore cyanochelin B by phylogenetically distant heterotrophs suggest its role in mediating microbial interactions

The results indicate that CychB supports a specific subset of co-habiting heterotrophic bacteria during iron starvation, further emphasizing the role of cyanobacteria as key drivers of nutrient flows within globally important microbial soil crust ecosystems, supporting microbial life in nutrient-limited environments.

B. P. Falcao, Martinez Yerena Jose Alberto, T. Galica et al. · bioRxiv · 0 citations

Open access Jul 2026

Cyanochelin uptake reveals an exclusively cyanobacterial class of AMIN-domain TonB-dependent transporters

This study functionally characterise the import system of cyanochelin B, a photolytic β-hydroxy aspartate siderophore produced by several filamentous cyanobacteria, and reports the first functional heterologous expression of a cyanobacterial TonB-dependent transporter and establishes Synechocystis as a promising platform for cyanobacterial xenosiderophore-uptake studies.

Jan Mašek, B. P. Falcao, Lucie Kajan Grodecká et al. · bioRxiv · 0 citations