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Int J Syst Evol Microbiol 57 (2007), 1823-1827; DOI  10.1099/ijs.0.65053-0
© 2007 International Union of Microbiological Societies

Pseudoxanthomonas spadix sp. nov., isolated from oil-contaminated soil

Chiu Chung Young1, Mann-Jing Ho1, A. B. Arun1, Wen-Ming Chen2, Wei-An Lai1, Fo-Ting Shen1, P. D. Rekha1 and A. F. Yassin3

1 College of Agriculture and Natural Resources, Department of Soil and Environmental Sciences, National Chung Hsing University, Taichung 402, Taiwan, Republic of China
2 Laboratory of Microbiology, Department of Seafood Science, National Kaohsiung Institute of Marine Technology, Nan-Tzu, Kaohsiung 811, Taiwan, Republic of China
3 Institut für Medizinische Mikrobiologie und Immunologie der Universität Bonn, 53127 Bonn, Germany

Correspondence
A. F. Yassin
yassin{at}mibi03.meb.uni-bonn.de

A bacterial isolate from a sample of oil-contaminated soil was characterized using a polyphasic taxonomic approach. Comparative analysis of the 16S rRNA gene sequence showed that this isolate constituted a distinct phyletic line within the genus Pseudoxanthomonas, displaying >3.7 % sequence divergence with respect to recognised Pseudoxanthomonas species. The genus assignment was confirmed by a chemotaxonomic analysis, which revealed the presence of a fatty acid profile characteristic of members of the genus Pseudoxanthomonas (straight-chain saturated, unsaturated and branched-chain fatty acids of the iso/anteiso type and 3-hydroxylated fatty acids) and the presence of a ubiquinone with eight isoprene units (Q-8) as the predominant respiratory quinone. The novel isolate was distinguishable from other members of the genus Pseudoxanthomonas on the basis of a combination of phenotypic properties. The genotypic and phenotypic data show that the strain represents a novel species of the genus Pseudoxanthomonas, for which the name Pseudoxanthomonas spadix sp. nov. is proposed. The type strain is IMMIB AFH-5T (=DSM 18855T=CCUG 53828T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of isolate IMMIB AFH-5T is AM418384.






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