Description of strain 3CB-1, a genomovar of Thauera aromatica, capable of degrading 3-chlorobenzoate coupled to nitrate reduction

Bongkeun Song, Norberto J. Palleroni, Max M. Häggblom

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28 Scopus citations

Abstract

A Gram-negative bacterium, strain 3CB-1, isolated from a 3- chlorobenzoate enrichment culture inoculated with a sediment sample is capable of degrading various aromatic compounds and halogenated derivatives with nitrate as electron acceptor. Compounds capable of serving as carbon and energy sources include 3-chlorobenzoate, 3-bromobenzoate, 2-fluorobenzoate, 4-fluorobenzoate, benzoate, 3-hydroxybenzoate, 4-hydroxybenzoate, 3- aminobenzoate, protocatechuate, m-cresol and p-cresol. Oxygen, nitrate and nitrite were used as electron acceptors for growth. Cells are Gram-negative short rods with peritrichous flagellation. The predominant fatty acids are cis-9-hexadecenoic acid (16: 1ω7c), hexadecanoic acid (16:0), octadecanoic acid (18:0), octadecenoic acid (18:1), 3-hydroxydecanoic acid (10:0 3OH) and dodecanoic acid (12:0). The sequence of the 16S rRNA gene, as well as the fatty acid composition, indicate that the strain is a member of the genus Thauera in the β-subclass of the Proteobacteria and very close to Thauera aromatica. DNA-DNA hybridization and nutrient screening indicate that strain 3CB-1 is a genomovar of Thauera aromatica with the proposed name Thauera aromatica genomovar chlorobenzoica.

Original languageEnglish (US)
Pages (from-to)551-558
Number of pages8
JournalInternational Journal of Systematic and Evolutionary Microbiology
Volume50
Issue number2
DOIs
StatePublished - Mar 2000

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Ecology, Evolution, Behavior and Systematics

Keywords

  • 3- chlorobenzoate degradation
  • Nitrate reduction
  • Thauera aromatica genomovar chlorobenzoica

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