Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 370793
Title Atypical one-carbon metabolism of an acetogenic and hydrogenogenic Moorella thermoacetica strain
Author(s) Jiang, B.; Henstra, A.M.; Paulo, P.L.; Balk, M.; Doesburg, W.C.J. van; Stams, A.J.M.
Source Archives of Microbiology 191 (2009)2. - ISSN 0302-8933 - p. 123 - 131.
Department(s) Microbiological Laboratory
Publication type Refereed Article in a scientific journal
Publication year 2009
Keyword(s) performance liquid-chromatography - clostridium-thermoaceticum - sp-nov. - carboxydothermus-hydrogenoformans - thermophilic bacterium - gen. nov. - methanol - thermoautotrophicum - dna - purification
Abstract A thermophilic spore-forming bacterium (strain AMP) was isolated from a thermophilic methanogenic bioreactor that was fed with cobalt-deprived synthetic medium containing methanol as substrate. 16S rRNA gene analysis revealed that strain AMP was closely related to the acetogenic bacterium Moorella thermoacetica DSM 521T (98.3% sequence similarity). DNA¿DNA hybridization showed 75.2 ± 4.7% similarity to M. thermoacetica DSM 521T, suggesting that strain AMP is a M. thermoacetica strain. Strain AMP has a unique one-carbon metabolism compared to other Moorella species. In media without cobalt growth of strain AMP on methanol was only sustained in coculture with a hydrogen-consuming methanogen, while in media with cobalt it grew acetogenically in the absence of the methanogen. Addition of thiosulfate led to sulfide formation and less acetate formation. Growth of strain AMP with CO resulted in the formation of hydrogen as the main product, while other CO-utilizing Moorella strains produce acetate as product. Formate supported growth only in the presence of thiosulfate or in coculture with the methanogen. Strain AMP did not grow with H2/CO2, unlike M. thermoacetica (DSM 521T). The lack of growth with H2/CO2 likely is due to the absence of cytochrome b in strain AMP
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