Peter Kämpfer

Learn More
An ad hoc committee for the re-evaluation of the species definition in bacteriology met in Gent, Belgium, in February 2002. The committee made various recommendations regarding the species definition in the light of developments in methodologies available to systematists.
Taxonomy relies on three key elements: characterization, classification and nomenclature. All three elements are dynamic fields, but each step depends on the one which precedes it. Thus, the nomenclature of a group of organisms depends on the way they are classified, and the classification (among other elements) depends on the information gathered as a(More)
In the past workers have isolated several pseudomonad strains which have been used for studies of anaerobic aromatic metabolism. The best studied of these strains are strains KB 740T (T = type strain) and K 172T. The taxonomic positions of these two organisms were determined by classical methods, including experiments to determine substrate spectrum,(More)
Minimal standards for describing new taxa within the aerobic endospore-forming bacteria are proposed, following Recommendation 30b of the Bacteriological Code (1990 Revision). These minimal standards are recommended as guidelines to assist authors in the preparation of descriptions for novel taxa. They encourage broad polyphasic characterization and the(More)
Seven soil samples and seven groundwater samples from a site contaminated with fuel-oil were investigated using several chemical and microbiological techniques. In soil samples, 500 to 7,500 mg/kg of total hydrocarbons were found. These samples contained no n-alkanes but iso- and branched chain alkanes. No polychlorinated biphenyls could be detected.(More)
The ionizing-radiation-resistant fractions of two soil bacterial communities were investigated by exposing an arid soil from the Sonoran Desert and a nonarid soil from a Louisiana forest to various doses of ionizing radiation using a (60)Co source. The numbers of surviving bacteria decreased as the dose of gamma radiation to which the soils were exposed(More)
A Gram-positive, rod-shaped, endospore-forming organism, strain CCUG 47242T, was isolated from a sample of industrial starch production in Sweden. 16S rRNA gene sequence analysis demonstrated that this isolate was moderately related to species of the genus Paenibacillus, with <94.4 % sequence similarity to all other hitherto described Paenibacillus species.(More)
Based on published results and investigations done for this study, chemotaxonomic characteristics of all validly described species of the genus Sphingomonas, as well as unnamed strains of this genus and related genera such as Rhizomonas and Blastomonas, are presented. All representatives of this group, here designated as sphingomonads, contain ubiquinone(More)
The Titertek-Enterobac-Automated System (TTE-AS, Flow Laboratories, Meckenheim, FRG) was evaluated for identification of members of the family of Enterobacteriaceae using a total of 816 bacterial strains obtained from stock cultures and clinical specimens. A comparison of the results of the TTE-AS kit with conventional methods was conducted. Identifications(More)
Two airborne bacterial isolates, NS/2 and NS/50(T), were examined in order to determine their taxonomic position. Their almost complete 16S rRNA gene sequences shared 95.9 % similarity. Sequence comparisons demonstrated that their next relatives are species of the genus Hymenobacter (93.6-95.7 % similarity) and the strains 'Taxeobacter chitinovorans'(More)