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1 Department of Microbiology, University of Georgia, Athens, GA 30602-2605, USA
2 Department of Natural Sciences, Clayton College and State University, Morrow, GA 30260-1250, USA
3 Center for Biomarker Analysis, University of Tennessee, Knoxville, TN 37932-2575, USA
4 Institute of Ecology, University of Georgia, Athens, GA 30602-2360, USA
Correspondence
William B. Whitman
Whitman. whitman{at}arches.uga.edu
A novel bacterium, strain B33D1T, isolated from agricultural soil, was characterized taxonomically and phylogenetically. Strain B33D1T was a Gram-positive, aerobic rod of medium length that formed long chains on a common laboratory medium. However, B33D1T grew poorly on the surface of agar plates and was sensitive to desiccation. The optimal growth temperature was 30 °C (range 1938 °C). The organism grew well on a variety of sugars and was capable of utilizing a few amino acids as sole carbon sources. Phylogenetically, the most closely related described species to strain B33D1T was Rubrobacter xylanophilus, which possessed 86 % 16S rRNA sequence similarity. However, a number of 16S rRNA gene clones derived from soil samples possessed up to 93 % sequence similarity. These results placed strain B33D1T within the subclass Rubrobacteridae of the phylum Actinobacteria. The novel genus and species Solirubrobacter pauli gen. nov., sp. nov. is proposed, with strain B33D1T (=ATCC BAA-492T=DSM 14954T) as the type strain.
Published online ahead of print on 9 September 2002 as DOI 10.1099/ijs.0.02438-0.
The GenBank/EMBL/DDBJ accession number for the nearly complete 16S rRNA gene sequence of strain B33D1T is AY039806.
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