Degradation of catecholate, hydroxamate, and carboxylate model siderophores by extracellular enzymes.

ABSTRACT: Siderophores are low-molecular weight biomolecules with a high affinity for ferric iron (FeIII) that can impact plant and microbial growth. Although their formation and biology have been investigated in detail, little is known about the environmental fate of siderophores, including their potential reactions with common degradative enzymes, which may influence or hinder the ability to promote the uptake of Fe for plants and microbes. In this study, we examined the ability of the model extracellular enzymes phenol oxidase, protease, and horseradish peroxidase to degrade apo siderophores and FeIII siderophore complexes. The siderophores were selected to represent the natural diversity of siderophore structures: the bacterial triscatecholamide siderophore protochelin; the bacterial trishydroxa

SUBMITTER: Chukwuma CE 

PROVIDER: S-EPMC12364333 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature