Document Type


Publication details

Tohidi Farid, H 2016, 'The effect of the marine cyanobacterium Trichodesmium erythraeum on iron speciation in seawater', PhD thesis, Southern Cross University, Lismore, NSW.

Copyright H Tohidi Farid 2016


Iron is an essential micronutrient for growth of all phytoplankton, and in particular cyanobacteria. It is hypothesised that conditions of iron starvation may influence the relative importance of mechanisms employed by microorganisms including release of superoxide and organic exudates rate into the extracellular environment. Overall, this thesis provides a modified ferrozine method for detection of dissolved total iron in the presence of high concentrations of organic ligands, as well as a better understanding of biochemical mechanisms by which the globally significant diazotrophic cyanobacterium Trichodesmium erythraeum (IMS101) potentially modifies the bioavailability of iron under various iron nutrition scenarios.