There are various environments where sulfate-reducing bacteria exist. In what kind of natural environments can we find them?
In the aquifers, salt marshes, river sediments, in agricultural soil they can be found.
Hi Simge,
Please check our recent publication " Sulphate in freshwater ecosystems: a review of sources, biogeochemical cycles, ecotoxicological effects and bioremediation ".
The full text can be found in Researchgate, Article Sulphate in freshwater ecosystems: A review of sources, biog...
Best wishes
Haojie
Thank you for your answers. Dilip Kumar Pal Sucharita Ghosh Haojie Liu
Hej Simge,
it seems they can be found for example in all types of wetlands but in some experiments with less decomposed peat we found that high sulphate concentrations in this layer (> 4 mM) were not decreasing (see Zak, D., Gelbrecht, J. (2007) The mobilization of phosphorus, organic carbon and ammonium in the initial stage of fen rewetting (a case study from NE Germany). Biogeochemistry 85: 141-151). One explanation might be that organic carbon as electron donor was lacking in this layer, however unfortunately we not investigated the microbial community and also not the process of sulphate reduction in detail at this time. But there is at least one recent work from an ongoing WETSCAPES project where sulphate reducers were investigated in different types of drained and rewetted peatlands rather detailed: Weil, M., Wang, H., Bengtsson, M., Köhn, D., Günther, A., Jurasinski, G., Couwenberg, J., Negassa, W., Zak, D., Urich., T. (2020) Long-Term Rewetting of Three Formerly Drained Peatlands Drives Congruent Compositional Changes in Pro- and Eukaryotic Soil Microbiomes through Environmental Filtering. Microorganisms 8: 550.
Indeed it would be also interesting to check if they can be found or how active they are in other systems, for example in acid mining lakes having pH values lower than 3 and high sulphate concentrations up to 20 mM and higher. There are some publications available just ask Prof. Google Scholar ;-).
I think it is an interesting topic indeed with a lot of uncertainties!
Good luck with your research!
Dominik
Dear Dr. Dominik Zak , thank you for your answer.
Actually, yes i have searched about the acid mining lakes before; what i really looking for is exactly the environment that have both low pH levels and sulfate reducing bacteria. Currently, i am working with a wastewater with low pH (1-2), and also it has high sulfate value. I want to reduce a bit of sulfate and try to increase the pH level; that's why i want to take seedsludge that sulfate reducing bacteria exist, but i want it from a natural place.
Thank you for your caring answers again.
Have an healthy day,
Simge
Yes, acid sulfate soil. Please read up my papers on https://scholar.google.com.au/citations?user=3wb3m6EAAAAJ&hl=en
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