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Int J Syst Evol Microbiol 59 (2009), 2464-2467; DOI  10.1099/ijs.0.008540-0
© 2009 International Union of Microbiological Societies

Pseudochrobactrum lubricantis sp. nov., isolated from a metal-working fluid

Peter Kämpfer1, Birgit Huber2, Nicole Lodders1, Isabel Warfolomeow3, Hans-Jürgen Busse2 and Holger C. Scholz4

1 Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, D-35392 Giessen, Germany
2 Institut für Bakteriologie, Mykologie und Hygiene, Veterinärmedizinische Universität, A-1210 Wien, Austria
3 Berufsgenossenschaft Metall Nord Süd – BGM, D-55130 Mainz, Germany
4 Bundeswehr Institute of Microbiology, D-80937 Munich, Germany

Correspondence
Peter Kämpfer
peter.kaempfer{at}umwelt.uni-giessen.de

A Gram-negative, rod-shaped, oxidase-positive, non-spore-forming, non-motile bacterium (KSS 7.8T) was isolated from a water-mixed metal-working fluid. On the basis of 16S rRNA gene and recA sequence similarities, the isolate was clearly grouped in the genus Pseudochrobactrum. This allocation was confirmed by fatty acid data (major fatty acids: C18 : 2{omega}7c and C19 : 0 cyclo {omega}8c), polar lipid profile (major components: phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and phosphatidylcholine, plus moderate amounts of phosphatidylmonomethylethanolamine and unknown aminolipid AL1), quinone system (ubiquinone Q-10) and polyamine pattern (spermidine and putrescine predominant). DNA–DNA pairing with the most closely related Pseudochrobactrum species showed values ranging from 24.2 to 45.7 %, and physiological and biochemical data clearly differentiated this isolate from described Pseudochrobactrum species. This organism represents a novel species of the genus Pseudochrobactrum, for which the name Pseudochrobactrum lubricantis sp. nov. is proposed, with the type strain KSS 7.8T (=CCUG 56963T=CCM 7581T).

The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequence and the recA sequence of strain KSS 7.8T are FM209496 and FM211811, respectively.






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