Siderophore sorption to clays.
Siderophores are low molecular weight organic ligands exuded by some aerobic organisms and plants to acquire Fe under Fe-limited conditions. The hydroxamate siderophores may sorb to aluminosilicate clays through a variety of mechanisms depending upon the nature of the clay and of the siderophore along with solution conditions such as pH, ionic strength, and presence of metal cations. They may also affect metal binding to clays. Here, we review previous studies of siderophore sorption to aluminosilicate clays; briefly discuss how the techniques of X-ray diffractometry, Fourier-transform infrared spectroscopy, and X-ray absorption spectroscopy may be applied to such studies; review effects of siderophores on metal sorption to clays; and highlight some areas for future research.
Maurice
Patricia A
PA
Department of Civil Engineering and Geological Sciences, University of Notre Dame, IN 46556, USA. pmaurice@nd.edu
Haack
Elizabeth A
EA
Mishra
Bhoopesh
B
D000327:Adsorption; D000538:Aluminum Silicates / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D017262:Siderophores / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
D000538:Aluminum Silicates; D017262:Siderophores