Abstract

Siderophore is a chelating iron substance secreted by microorganisms at low intracellular iron concentration. Siderophore can be divided into three categories: catechol salts, hydroxamic salts and carboxylates. The transport of siderophore is regulated by Fur, σ factor and quorum sensing signal. In recent years, siderophore has been used in fields such as oil pollution remediation, heavy metal pollution remediation and pulp biological bleaching, and has received extensive attention. This paper reviews the classification of siderophores and their transport regulation mechanism, and the application of siderophore in environmental pollution control and remediation. Furthermore, we address the application of siderophore in the future.

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