Two Marine Desulfotomaculum spp. of Different Origin are Capable of Utilizing Acetone and Higher Ketones

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Current Microbiology. Springer. 2021, 78(5), pp. 1763-1770. ISSN 0343-8651. eISSN 1432-0991. Available under: doi: 10.1007/s00284-021-02441-9
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Degradation of acetone and higher ketones has been described in detail for aerobic and nitrate-reducing bacteria. Among sulfate-reducing bacteria, degradation of acetone and other ketones is still an uncommon ability and has not been understood completely yet. In the present work, we show that Desulfotomaculum arcticum and Desulfotomaculum geothermicum are able to degrade acetone and butanone. Total proteomics of cell-free extracts of both organisms indicated an involvement of a thiamine diphosphate-dependent enzyme, a B12-dependent mutase, and a specific dehydrogenase during acetone degradation. Similar enzymes were recently described to be involved in acetone degradation by Desulfococcus biacutus. As there are so far only two described sulfate reducers able to degrade acetone, D. arcticum and D. geothermicum represent two further species with this capacity. All these bacteria appear to degrade acetone via the same set of enzymes and therefore via the same pathway.

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ISO 690FREY, Jasmin, Sophie KASSNER, Bernhard SCHINK, 2021. Two Marine Desulfotomaculum spp. of Different Origin are Capable of Utilizing Acetone and Higher Ketones. In: Current Microbiology. Springer. 2021, 78(5), pp. 1763-1770. ISSN 0343-8651. eISSN 1432-0991. Available under: doi: 10.1007/s00284-021-02441-9
BibTex
@article{Frey2021-05Marin-53405,
  year={2021},
  doi={10.1007/s00284-021-02441-9},
  title={Two Marine Desulfotomaculum spp. of Different Origin are Capable of Utilizing Acetone and Higher Ketones},
  number={5},
  volume={78},
  issn={0343-8651},
  journal={Current Microbiology},
  pages={1763--1770},
  author={Frey, Jasmin and Kaßner, Sophie and Schink, Bernhard}
}
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