Year: 1994
Type: article
Abstract: During periods when levels of biologically available iron are low, cyanobacteria produce low‐molecular‐weight ferric‐specific chelators (siderophores). We investigated the frequency of siderophore production in iron‐deficient culture of freshwater and marine cyanobacteria and examined the effects of extracellular iron chelators on iron uptake in a coccoid marine species. The results confirm that iron chelate production is prevalent among freshwater and marine species and that some of these iron chelators function as siderophores. The frequent identification of catechol‐type siderophores further indicates that these iron chelators may be as important in high‐affinity iron transport as are the hydroxamic acid‐type siderophores.
Source: Limnology and Oceanography
Authors: Steven W. Wilhelm, Charles G. Trick
Institution: Western University
Language: English
Subfield: Genetics
Domain: Life Sciences
Open Access status: bronze
OpenAlex ID: W2082241688