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HOME > J. Microbiol > Volume 49(1); 2011 > Article
Research Support, Non-U.S. Gov't
Acinetobacter oleivorans sp. nov. Is Capable of Adhering to and Growing on Diesel-Oil
Yoon-Suk Kang 1, Jaejoon Jung 1, Che Ok Jeon 2, Woojun Park 1
Journal of Microbiology 2011;49(1):29-34.
DOI: https://doi.org/10.1007/s12275-011-0315-y
Published online: March 3, 2011
1Division of Environmental Science and Ecological Engineering, Korea University, Seoul 136-713 Republic of Korea, 2Department of Life Science, Chung-Ang University, Seoul 156-706, Republic of Korea1Division of Environmental Science and Ecological Engineering, Korea University, Seoul 136-713 Republic of Korea, 2Department of Life Science, Chung-Ang University, Seoul 156-706, Republic of Korea
Corresponding author:  Woojun Park , Tel: +82-2-3290-3067, 
Received: 12 August 2010   • Accepted: 29 September 2010
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Abstract

A diesel-oil and n-hexadecane-degrading novel bacterial strain, designated DR1T, was isolated from a rice paddy in Deok-So, South Korea. The strain DR1T cells were Gram-negative, aerobic coccobacilli, and grew at 20-37°C with the optimal temperature of 30°C, and an optimal pH of 6-8. Interestingly, strain DR1T was highly motile (swimming and swarming motility) using its fimbriae, and generated N-acyl homoserine lactones as quorum-sensing signals. The predominant respiratory quinone as identified as ubiquinone-9 (Q-9) and DNA G+C content was 41.4 mol%. Comparative 16S rRNA gene sequence-based phylogenetic analysis placed the strain in a clade with the species A. calcoaceticus, A. haemolyticus, A. baumannii, A. baylyi, and A. beijerinckii, with which it evidenced sequence similarities of 98.2%, 97.4%, 97.2%, 97.1%, and 97.0%, respectively. DNA-DNA hybridization values between strain DR1T and other Acinetobacter spp. were all less than 20%. The physiological and taxonomic characteristics with the DNA-DNA hybridization data supported the identification of strain DR1T in the genus Acinetobacter as a novel species, for which the name Acinetobacter oleivorans sp. nov. is proposed. The type strain is DR1T (=KCTC 23045T =JCM 16667T).

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    Acinetobacter oleivorans sp. nov. Is Capable of Adhering to and Growing on Diesel-Oil
    J. Microbiol. 2011;49(1):29-34.   Published online March 3, 2011
    DOI: https://doi.org/10.1007/s12275-011-0315-y
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