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Suzuki, S. (author), Kuenen, J.G. (author), Schipper, K. (author), Van der Velde, S. (author), Ishii, S. (author), Wu, A. (author), Sorokin, D.Y. (author), Tenney, A. (author), Meng, X.Y. (author), Morrill, P.L. (author), Kamagata, Y. (author), Muyzer, G. (author), Nealson, K.H. (author)Serpentinization, or the aqueous alteration of ultramafic rocks, results in challenging environments for life in continental sites due to the combination of extremely high pH, low salinity and lack of obvious electron acceptors and carbon sources. Nevertheless, certain Betaproteobacteria have been frequently observed in such environments. Here...journal article 2014
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Chen, B.S. (author), Otten, L.G. (author), Resch, V. (author), Muyzer, G. (author), Hanefeld, U. (author)Rhodococcus rhodochrous ATCC 17895 possesses an array of mono- and dioxygenases, as well as hydratases, which makes it an interesting organism for biocatalysis. R. rhodochrous is a Gram-positive aerobic bacterium with a rod-like morphology. Here we describe the features of this organism, together with the complete genome sequence and annotation....journal article 2013
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Sorokin, D.Y. (author), Tourova, T.P. (author), Sukhacheva, M.V. (author), Muyzer, G. (author)An anaerobic enrichment culture inoculated with a sample of sediments from soda lakes of the Kulunda Steppe with elemental sulfur as electron acceptor and formate as electron donor at pH 10 and moderate salinity inoculated with sediments from soda lakes in Kulunda Steppe (Altai, Russia) resulted in the domination of a Gram-positive, spore...journal article 2012
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Sorokin, D.Y. (author), Tourova, T.P. (author), Abbas, B. (author), Suhacheva, M.V. (author), Muyzer, G. (author)Four strains of lithotrophic sulfate-reducing bacteria (SRB) have been enriched and isolated from anoxic sediments of hypersaline chloride–sulfate lakes in the Kulunda Steppe (Altai, Russia) at 2 M NaCl and pH 7.5. According to the 16S rRNA gene sequence analysis, the isolates were closely related to each other and belonged to the genus...journal article 2012
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Belila, A. (author), Abbas, B. (author), Fazaa, I. (author), Saidi, N. (author), Snoussi, M. (author), Hassen, A. (author), Muyzer, G. (author)Several wastewater stabilization ponds (WSP) in Tunisia suffer periodically from the ‘red-water’ phenomenon due to blooming of purple sulfur bacteria, indicating that sulfur cycle is one of the main element cycles in these ponds. In this study, we investigated the microbial diversity of the El Menzeh WSP and focused in particular on the...journal article 2012
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Sorokin, D.Y. (author), Tourova, T.P. (author), Panteleeva, A.N. (author), Kaparullina, E.N. (author), Muyzer, G. (author)Anaerobic enrichments at pH 10, with pectin and polygalacturonates as substrates and inoculated with samples of sediments of hypersaline soda lakes from the Kulunda Steppe (Altai, Russia) demonstrated the potential for microbial pectin degradation up to soda-saturating conditions. The enrichments resulted in the isolation of six strains of...journal article 2012
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Bassin, J.P. (author), Pronk, M. (author), Muyzer, G. (author), Kleerebezem, R. (author), Dezotti, M. (author), Van Loosdrecht, M.C.M. (author)The long- and short-term effects of salt on biological nitrogen and phosphorus removal processes were studied in an aerobic granular sludge reactor. The microbial community structure was investigated by PCR-denaturing gradient gel electrophoresis (DGGE) on 16S rRNA and amoA genes. PCR products obtained from genomic DNA and from rRNA after...journal article 2011
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Sorokin, D.Y. (author), Panteleeva, A.N. (author), Tourova, T.P. (author), Kaparullina, E.N. (author), Muyzer, G. (author)Anaerobic enrichment with pectin at pH 10 and moderate salinity inoculated with sediments fromsoda lakes of the Kulunda Steppe (Altai, Russia) resulted in the isolation of a novel member of the Bacteroidetes, strain AP1T. The cells are long, flexible, Gram-negative rods forming pink carotenoids. The isolate is an obligate anaerobe, fermenting...journal article 2011
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Bassin, J.P. (author), Kleerebezem, R. (author), Muyzer, G. (author), Rosado, A.S. (author), Van Loosdrecht, M.C.M. (author), Dezotti, M. (author)The effect of salinity on the activity of nitrifying bacteria, floc characteristics, and microbial community structure accessed by fluorescent in situ hybridization and polymerase chain reaction–denaturing gradient gel electrophoresis techniques was investigated. Two sequencing batch reactors (SRB1 and SBR2) treating synthetic wastewater were...journal article 2011
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Vejmelkova, D. (author), Sorokin, D.Y. (author), Abbas, B. (author), Kovaleva, O.L. (author), Kleerebezem, R. (author), Kampschreur, M.J. (author), Muyzer, G. (author), Van Loosdrecht, M.C.M. (author)The ammonia-oxidizing bacterial community (AOB) was investigated in two types of laboratory-scale bioreactors performing partial oxidation of ammonia to nitrite or nitrate at high (80 mM) to extremely high (428 mM) concentrations of ammonium bicarbonate. At all conditions, the dominant AOB was affiliated to the Nitrosomonas europaea lineage as...journal article 2011
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Sorokin, D.Y. (author), Tourova, T.P. (author), Kolganova, T.V. (author), Detkova, E.N. (author), Galinski, E.A. (author), Muyzer, G. (author)Soda lake sediments usually contain high concentrations of sulfide indicating active sulfate reduction. Monitoring of sulfate-reducing bacteria (SRB) in soda lakes demonstrated a dominance of two groups of culturable SRB belonging to the order Desulfovibrionales specialized in utilization of inorganic electron donors, such as formate, H2 and...journal article 2011
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Sorokin, D.Y. (author), Kuenen, J.G. (author), Muyzer, G. (author)Soda lakes represent a unique ecosystem with extremely high pH (up to 11) and salinity (up to saturation) due to the presence of high concentrations of sodium carbonate in brines. Despite these double extreme conditions, most of the lakes are highly productive and contain a fully functional microbial system. The microbial sulfur cycle is among...journal article 2011
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Wang, J. (author), Vollrath, S. (author), Behrends, T. (author), Bodelier, P.L.E. (author), Muyzer, G. (author), Meima-Franke, M. (author), Den Oudsten, F. (author), Van Cappellen, P. (author), Laanbroek, H.J. (author)Microbial iron oxidation is an integral part of the iron redox cycle in wetlands. Nonetheless, relatively little is known about the composition and ecology of iron-oxidizing communities in the soils and sediments of wetlands. In this study, sediment cores were collected across a freshwater tidal marsh in order to characterize the iron-oxidizing...journal article 2011
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Sorokin, D.Y. (author), Muyzer, G. (author)Anaerobic enrichment cultures with elemental sulfur as electron acceptor and either acetate or propionate as electron donor and carbon source at pH 10 and moderate salinity inoculated with sediments from soda lakes in Kulunda Steppe (Altai, Russia) resulted in the isolation of two novel members of the bacterial phylum Chrysiogenetes. The...journal article 2010
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Sorokin, D.Y. (author), Muyzer, G. (author)An anaerobic enrichment with pyruvate as electron donor and thiosulfate at pH 10 and 0.6 M Na? inoculated with pasteurized soda lake sediments resulted in a sulfidogenic coculture of two morphotypes of obligately anaerobic haloalkaliphilic endospore-forming clostridia, which were further isolated in pure culture. Strain AHT16 was a thin long rod...journal article 2010
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Sorokin, D.Y. (author), Detkova, E.N. (author), Muyzer, G. (author)Evidence on the utilization of simple fatty acids by sulfate-reducing bacteria (SRB) at extremely haloalkaline conditions are practically absent, except for a single case of syntrophy by Desulfonatronum on acetate. Our experiments with sediments from soda lakes of Kulunda Steppe (Altai, Russia) showed sulfide production with sulfate as electron...journal article 2009
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Sorokin, D.Y. (author), Muyzer, G. (author)A possibility of dissimilatory MnO2 reduction at extremely high salt and pH was studied in sediments from hypersaline alkaline lakes in Kulunda Steppe (Altai, Russia). Experiments with anaerobic sediment slurries demonstrated a relatively rapid reduction of colloidal MnO2 in the presence of acetate and formate as electron donor at in situ...journal article 2009
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Stams, A.J.M. (author), Huisman, J. (author), Garcia Encia, P.A. (author), Muyzer, G. (author)Citrate-containing wastewater is used as electron donor for sulfate reduction in a biological treatment plant for the removal of sulfate. The pathway of citrate conversion coupled to sulfate reduction and the microorganisms involved were investigated. Citrate was not a direct electron donor for the sulfate-reducing bacteria. Instead, citrate was...journal article 2009
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Temudo, M.F. (author), Muyzer, G. (author), Kleerebezem, R. (author), Van Loosdrecht, M.C.M. (author)Anaerobic fermentation by an open mixed culture was investigated at different pH values (4–8.5) and with three substrates (glucose, glycerol and xylose). The populations established in each condition were assessed by denaturing gradient gel electrophoresis analysis of the 16S ribosomal RNA gene fragments. The fermentation pattern and the...journal article 2008
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Chmura, A. (author), Shapovalova, A.A. (author), Van Pelt, S. (author), Van Rantwijk, F. (author), Tourova, T.P. (author), Muyzer, G. (author), Sorokin, D.Y. (author)An enrichment culture from saline soda soils, using acetate as carbon and energy source and 2- phenylpropionitrile as nitrogen source (PPN) at pH 10, resulted in the isolation of strain ANL-?CH3. The strain was identified as a representative of the genus Halomonas in the Gammaproteobacteria. The bacterium was capable of PPN utilization as a...journal article 2008
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