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Ecology of iron-limited cyanobacteria: a review of physiological responses and implications for aquatic systems

1995; Inter-Research Science Center; Volume: 9; Linguagem: Inglês

10.3354/ame009295

1616-1564

SW Wilhelm,

Photosynthetic Processes and Mechanisms

AME Aquatic Microbial Ecology Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials AME 09:295-303 (1995) - DOI: https://doi.org/10.3354/ame009295 Ecology of iron-limited cyanobacteria: a review of physiological responses and implications for aquatic systems Wilhelm SW Recent studies have demonstrated that cyanobacteria are capable of responding to low levels of iron availability through alterations in cellular iron requirements and by increasing their ability to scavenge iron from the environment through the activation of siderophore-mediated high-affinity transport systems. The significant amount of evidence in the literature on siderophore production by cyanobacteria suggests that these iron-chelating compounds may be important in the determination of iron availability in aquatic systems. This review focuses on how cyanobacteria respond to growth-limiting levels of available iron and on how siderophores potentially alter the biological availability of iron in the system thereby allowing the cyanobacteria to exist at low iron availabilities. In the light of recent findings on the amount of organically complexed iron in aquatic systems, it is concluded that the production of siderophores by aquatic organisms may specifically dictate the levels of biologically available iron in some aquatic systems. Cyanobacteria . Iron . Siderophores . Synechococcus Full text in pdf format PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in AME Vol. 09, No. 3. Publication date: December 21, 1995 Print ISSN: 0948-3055; Online ISSN: 1616-1564 Copyright © 1995 Inter-Research.