Hydrogenophaga carboriunda sp. nov., a tertiary butyl alcohol-oxidizing, psychrotolerant aerobe derived from granular-activated carbon (GAC)

Kimberly M. Reinauer, Jovan Popovic, Christopher D. Weber, Kayleigh A. Millerick, Man Jae Kwon, Na Wei, Yang Zhang, Kevin T. Finneran

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A Gram-negative, rod-shaped bacterium was isolated from a mixed culture that degraded tert-butyl alcohol (TBA) in a granular-activated carbon (GAC) sample from a Biological-GAC reactor. Strain YZ2 T was assigned to the Betaproteobacteria within the family Comamonadaceae based on 16S rRNA gene similarities. The nearest phylogenetic relative (95.0 % similarity) with a valid name was Hydrogenophaga taeniospiralis. The DNA G+C content was 66.4 mol%. DNA:DNA hybridization indicated that the level of relatedness to members of the genus Hydrogenophaga ranged from 1.1 to 10.8 %. The dominant cellular fatty acids were: 18:1 w7c (75 %), 16:0 (4.9 %), 17:0 (3.85 %), 18:0 (2.93 %), 11 methyl 18:1 w7c (2.69 %), Summed Feature 2 (2.27 %), and 18:0 3OH (1.35 %). The primary substrate used was TBA, which is a fuel oxygenate and groundwater contaminant. YZ2 T was non-motile, without apparent flagella. It is a psychrotolerant, facultative aerobe that grew between pH 6.5 and 9.5, and 4 and 30 C. The culture grew on and mineralized TBA at 4 C, which is the first report of psychrotolerant TBA degradation. Hydrogen was used as an alternative electron donor. The culture also grew well in defined freshwater medium with ethanol, butanol, hydroxy isobutyric acid, acetate, pyruvate, citrate, lactate, isopropanol, and benzoic acid as electron donors. Nitrate was reduced with hydrogen as the sole electron donor. On the basis of morphological, physiological, and chemotaxonomic data, a new species, Hydrogenophaga carboriunda is proposed, with YZ2 T as the type strain.

Original languageEnglish
Pages (from-to)510-517
Number of pages8
JournalCurrent Microbiology
Volume68
Issue number4
DOIs
Publication statusPublished - 2014 Apr 1
Externally publishedYes

Fingerprint

Comamonadaceae
tert-Butyl Alcohol
Carbon
Electrons
Hydrogen
DNA
Betaproteobacteria
Butanols
Benzoic Acid
2-Propanol
Flagella
Groundwater
Base Composition
Fresh Water
Pyruvic Acid
rRNA Genes
Citric Acid
Nitrates
Names
Lactic Acid

ASJC Scopus subject areas

  • Microbiology
  • Applied Microbiology and Biotechnology

Cite this

Hydrogenophaga carboriunda sp. nov., a tertiary butyl alcohol-oxidizing, psychrotolerant aerobe derived from granular-activated carbon (GAC). / Reinauer, Kimberly M.; Popovic, Jovan; Weber, Christopher D.; Millerick, Kayleigh A.; Kwon, Man Jae; Wei, Na; Zhang, Yang; Finneran, Kevin T.

In: Current Microbiology, Vol. 68, No. 4, 01.04.2014, p. 510-517.

Research output: Contribution to journalArticle

Reinauer, Kimberly M. ; Popovic, Jovan ; Weber, Christopher D. ; Millerick, Kayleigh A. ; Kwon, Man Jae ; Wei, Na ; Zhang, Yang ; Finneran, Kevin T. / Hydrogenophaga carboriunda sp. nov., a tertiary butyl alcohol-oxidizing, psychrotolerant aerobe derived from granular-activated carbon (GAC). In: Current Microbiology. 2014 ; Vol. 68, No. 4. pp. 510-517.
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AU - Millerick, Kayleigh A.

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AU - Wei, Na

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