Desulfovibrio inopinatus, sp. nov., a new sulfate-reducing bacterium that degrades hydroxyhydroquinone (1,2,4-trihydroxybenzene)

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1997
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Reichenbecher, Wolfram
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Archives of Microbiology. 1997, 168(4), pp. 338-344. ISSN 0302-8933. eISSN 1432-072X
Zusammenfassung

A new sulfate-reducing bacterium was isolated from marine sediment with hydroxyhydroquinone (1,2,4- trihydroxybenzene) as the sole electron and carbon source. Strain HHQ 20 grew slowly with doubling times of > 20 h and oxidized hydroxyhydroquinone, lactate, pyruvate, ethanol, fructose, and ribose incompletely to acetate and carbon dioxide, with concomitant reduction of sulfate to sulfide. Cells were large, vibrio-shaped, and gram-negative with a G+C content of 49.7 mol%, and contained desulfoviridin. Based on analysis of the 16S rRNA sequence, strain HHQ 20 was found to be related to the genus Desulfovibrio but formed a separate line, thus justifying the establishment of a new species within this genus. Hydroxyhydroquinone was the only aromatic compound utilized among numerous hydroxybenzoates, hydroxybenzenes, methoxybenzoates, and methoxybenzenes tested, suggesting that phloroglucinol and resorcinol are not degradation intermediates. Cell-free extracts of strain HHQ 20 did not contain pyrogallol-phloroglucinol transhydroxylase activity. First experiments indicated that this strain uses a new reductive pathway for anaerobic hydroxyhydroquinone degradation.

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Fachgebiet (DDC)
570 Biowissenschaften, Biologie
Schlagwörter
Anaerobic degradation, trihydroxybenzenes, hydroxyhydroquinone, Pelobacter massiliensis, Desulfovibrio sp.
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ISO 690REICHENBECHER, Wolfram, Bernhard SCHINK, 1997. Desulfovibrio inopinatus, sp. nov., a new sulfate-reducing bacterium that degrades hydroxyhydroquinone (1,2,4-trihydroxybenzene). In: Archives of Microbiology. 1997, 168(4), pp. 338-344. ISSN 0302-8933. eISSN 1432-072X
BibTex
@article{Reichenbecher1997Desul-8359,
  year={1997},
  title={Desulfovibrio inopinatus, sp. nov., a new sulfate-reducing bacterium that degrades hydroxyhydroquinone (1,2,4-trihydroxybenzene)},
  number={4},
  volume={168},
  issn={0302-8933},
  journal={Archives of Microbiology},
  pages={338--344},
  author={Reichenbecher, Wolfram and Schink, Bernhard}
}
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