铁载体(siderophore)是由微生物(细菌、真菌)产生的对铁具有高亲和性的小分子化合物。微生物需要铁合成细胞代谢所需物质,所以铁对于微生物来说至关重要。但三价铁离子及其衍生物溶解性较低,故大多数微生物难以直接利用,需通过合成并分泌铁载体来满足细 Siderophores are small molecule compounds produced by microorganisms (bacteria, fungi) that have a high affinity for iron. Microorganisms require the material needed for the metabolism of iron-synthesizing cells, so iron is crucial to the microorganisms. However, ferric ions and their derivatives are less soluble, so most of the microorganisms are difficult to utilize directly, and the iron carrier needs to be synthesized and secreted to satisfy the requirement of fine