Articles | Volume 14, issue 10
Biogeosciences, 14, 2697–2714, 2017
https://doi.org/10.5194/bg-14-2697-2017
Biogeosciences, 14, 2697–2714, 2017
https://doi.org/10.5194/bg-14-2697-2017
Research article
31 May 2017
Research article | 31 May 2017

Functional diversity of microbial communities in pristine aquifers inferred by PLFA- and sequencing-based approaches

Valérie F. Schwab et al.

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Cited articles

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Arts, M. T., Ackman, R. G., and Holub, B. J.: “Essential fatty acids” in aquatic ecosystems: a crucial link between diet and human health and evolution, Can. J. Fish. Aquat. Sci., 58, 122–137, https://doi.org/10.1139/f00-224, 2001.
Bååth, E. and Anderson, T.-H.: Comparison of soil fungal/bacterial ratios in a pH gradient using physiological and PLFA-based techniques, Soil Biol. Biochem., 35, 955–963, https://doi.org/10.1016/S0038-0717(03)00154-8, 2003.
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We used phospholipid fatty acids (PLFAs) to link specific microbial markers to the spatio-temporal changes of groundwater physico-chemistry. PLFA-based functional groups were directly supported by DNA/RNA results. O2 resulted in increased eukaryotic biomass and abundance of nitrite-oxidizing bacteria but impeded anammox, sulphate-reducing and iron-reducing bacteria. Our study demonstrates the power of PLFA-based approaches to study the nature and activity of microorganisms in pristine aquifers.
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