Marine siderophores and microbial iron mobilization
Marine siderophores and microbial iron mobilization
复制标题
DOI：
10.1007/s10534-005-3711-0
复制
发表时间：
2005-08-01
期刊：
影响因子：
3.5
通讯作者：
Butler, A
中科院分区：
文献类型：
--
作者：
Butler, A
铁对几乎所有微生物的生长都是必不可少的，但铁在中性pH值附近仅微溶，许多微生物生长的好氧条件。海水的pH值甚至更高，从而进一步降低溶解的三价铁离子的浓度。使可利用性问题复杂化的是，表层海水中的总铁浓度惊人地低，然而，海洋微生物仍然需要铁来生长。像陆地细菌一样，从开放的海水中分离的细菌通常产生铁载体，这是一种低分子量的螯合配体，有助于微生物获得铁。本文综述了海洋细菌产生的铁载体的结构和区分海洋铁载体的新特征。
Iron is essential for the growth of nearly all microorganisms yet iron is only sparingly soluble near the neutral pH, aerobic conditions in which many microorganisms grow. The pH of ocean water is even higher, thereby further lowering the concentration of dissolved ferric ion. To compound the problem of availability, the total iron concentration is surprisingly low in surface ocean water, yet nevertheless, marine microorganisms still require iron for growth. Like terrestrial bacterial, bacteria isolated from open ocean water often produce siderophores, which are low molecular weight chelating ligands that facilitate the microbial acquisition of iron. The present review summarizes the structures of siderophores produced by marine bacteria and the emerging characteristics that distinguish marine siderophores.