Description of strain 3CB-1, a genomovar of Thauera aromatica, capable of degrading 3-chlorobenzoate coupled to nitrate reduction.
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 (16:1 omega 7c), 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 beta-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.[1]References
- Description of strain 3CB-1, a genomovar of Thauera aromatica, capable of degrading 3-chlorobenzoate coupled to nitrate reduction. Song, B., Palleroni, N.J., Häggblom, M.M. Int. J. Syst. Evol. Microbiol. (2000) [Pubmed]
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