Activity and diversity of haloalkaliphilic methanogens in Central Asian soda 
lakes

Nolla-Ardevol, V.; Strous, M.; Sorokin, D. Y.; Merkel, A. Y.; Tegetmeyer, H. E.

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Activity and diversity of haloalkaliphilic methanogens in Central Asian soda lakes

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Strous, M.
Microbial Fitness Group, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Tegetmeyer, H. E.
HGF MPG Joint Research Group for Deep Sea Ecology & Technology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Citation

Nolla-Ardevol, V., Strous, M., Sorokin, D. Y., Merkel, A. Y., & Tegetmeyer, H. E. (2012). Activity and diversity of haloalkaliphilic methanogens in Central Asian soda lakes. Journal of Biotechnology, 161(2), 167-173.

Cite as: https://hdl.handle.net/21.11116/0000-0001-C7A8-1

Abstract

Methanogens are of biotechnological interest because of their importance in biogas production. Here we investigate the suitability of sediments from Central Asian soda lakes as inoculum for high pH methane-producing bioreactors. Methane production in these sediments was modest (up to 2.5 μmol mL sediment), with methanol and hydrogen as the preferred substrates. The responsible methanogenic community was characterized based on mcrA gene sequences. McrA gene sequences so far specific to these habitats indicated the presence of two clusters within the orders Methanobacteriales and Methanomicrobiales, one apparently including representatives of the genus Methanocalculus and another distantly related to the genus Methanobacterium.