PMID: 9523457Apr 2, 1998Paper

Effect of the siderophore alcaligin E on the bioavailability of Cd to Alcaligenes eutrophus CH34

Journal of Industrial Microbiology & Biotechnology
A GilisD van Der Lelie

Abstract

Alcaligin E, the siderophore of the heavy metal-resistant A. eutrophus strain CH34, was shown to interact with Cd and consequently affect its bioavailability and toxicity. The addition of alcaligin E markedly stimulated the growth in the presence of Cd of an alcaligin E-deficient CH34 derivative. Using bioluminescence assays, this effect could be assigned to a decrease in bioavailability of Cd in the presence of alcaligin E. However, Cd-uptake studies showed no influence of alcaligin E on the cellular concentration of Cd. Furthermore, by scanning electron microscopy, the morphology of precipitated Cd crystals was shown to be altered by alcaligin E. These data suggest that alcaligin E, besides its function in iron supply to the cell, provides a protection against heavy metal toxicity. A link between the A. eutrophus CH34 siderophore system and the czc-mediated Cd-efflux system is hypothesized.

Citations

Oct 23, 2013·Ecotoxicology and Environmental Safety·Milind Mohan Naik, Santosh Kumar Dubey
Feb 13, 2002·Hybridoma and Hybridomics·F MelchiorJ A Falla
Sep 3, 2011·Environmental Microbiology·Isabelle J SchalkArmelle Braud
Jul 5, 2005·Bioresource Technology·R Z Sayyed, S B Chincholkar
Dec 15, 2007·Biotechnology and Bioengineering·Varun GuptaAditya Mittal
Apr 12, 2016·Metallomics : Integrated Biometal Science·Dietrich H Nies

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