Publication details

Acinetobacter bohemicus sp nov widespread in natural soil and water ecosystems in the Czech Republic

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Year of publication 2014
Type Article in Periodical
Magazine / Source Systematic and Applied Microbiology
MU Faculty or unit

Central European Institute of Technology

Field Microbiology, virology
Keywords rpoB; gyrB; 16S rRNA gene; ANI; Carbon source assimilation; MALDI-TOF MS
Description We investigated the taxonomic status of a phenetically unique group of 25 Acinetobacter strains which were isolated from multiple soil and water samples collected in natural ecosystems in the Czech Republic. Based on the comparative sequence analyses of the rpoB, gyrB, and 16S rRNA genes, the strains formed a coherent and well separated branch within the genus Acinetobacter. The genomic uniqueness of the group at the species level was supported by the low average nucleotide identity values (<= 77.37%) between the whole genome sequences of strain ANC 3994(T) (NCBI accession no. APOH00000000) and the representatives of the known Acinetobacter species. Moreover, all 25 strains created a tight cluster clearly separated from all hitherto described species based on whole-cell protein profiling by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and shared a unique combination of metabolic and physiological properties. The capacity to assimilate L-histidine and the inability to grow at 35 degrees C differentiated them from their phenotypically closest neighbor, Acinetobacter johnsonii. We conclude that the 25 strains represent a novel Acinetobacter species, for which the name Acinetobacter bohemicus sp. nov. is proposed. The type strain of A. bohemicus is ANC 3994(T) (=CIP 110496(T) = CCUG 63842(T) = CCM 8462(T)).
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