Arsenoriboside degradation in marine systems: the use of bacteria culture incubation experiments as model systems

Authors

Elliott G. Duncan, University of CanberraFollow
William A. Maher, University of Canberra
Simon D. Foster, University of Canberra
Katarina M. Mikac, University of WollongongFollow
Frank Krikowa, University of Canberra
Anthea Florance, University of Canberra

RIS ID

85101

Publication Details

Duncan, E. G., Maher, W. A., Foster, S. D., Mikac, K. M., Krikowa, F. & Florance, A. (2014). Arsenoriboside degradation in marine systems: the use of bacteria culture incubation experiments as model systems. Chemosphere, 95 635-638.

Abstract

Arsenoribosides (as glycerol; phosphate; sulfate and sulfonate) persisted in all bacteria-inoculated cultures irrespective of the source of bacteria (seawater, macro-algae surface) or the culture media used (DIFCO Marine Broth 2216 or novel blended Hormosira banksii tissue-based). This is unlike observations from traditional macro-algae tissue decomposition studies or in nature. In addition known arsenoriboside degradation products such as dimethylarsenoethanol (DMAE), dimethylarsenate (DMA), methylarsenate (MA) and arsenate - As(V) were not detected in any cultures. Consequently, the use of bacterial culture incubation experiments to explain the fate of arsenoribosides in marine systems appears limited as the processes governing arsenoriboside degradation in these experiments appear to be different to those in macro-algae tissue decomposition studies or in nature.