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1 Microbial Genomics and Bioprocessing Research Unit, National Center for Agricultural Utilization Research, USDA Agricultural Research Service, 1815 North University Street, Peoria, IL 61604, USA
2 Livestock Disease Diagnostic Center, Department of Veterinary Science, University of Kentucky, Lexington, KY 40511, USA
3 Golden Vetlab, PO 1537, Alberton, South Africa
Correspondence
D. P. Labeda
labedadp{at}mail.ncaur.usda.gov
Actinomycete strains isolated from lesions on equine placentas from two horses in Kentucky and one in South Africa were subjected to a polyphasic taxonomic study. Chemotaxonomic and morphological characteristics indicated that the isolates are members of the genus Amycolatopsis. On the basis of phylogenetic analysis of 16S rDNA sequences, the isolates are related most closely to Amycolatopsis mediterranei. Physiological characteristics of these strains indicated that they do not belong to A. mediterranei and DNA relatedness determinations confirmed that these strains represent three novel species of the genus Amycolatopsis, for which the names Amycolatopsis kentuckyensis (type strain, NRRL B-24129T=LDDC 9447-99T=DSM 44652T), Amycolatopsis lexingtonensis (type strain, NRRL B-24131T=LDDC 12275-99T=DSM 44653T) and Amycolatopsis pretoriensis (type strain, NRRL B-24133T=ARC OV1 0181T=DSM 44654T) are proposed.
The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequences of Amycolatopsis kentuckyensis NRRL B-24129T, Amycolatopsis lexingtonensis NRRL B-24131T, Amycolatopsis pretoriensis NRRL B-24133T and Amycolatopsis mediterranei NRRL B-3240T are AY183357, AY183358, AY183356 and AY184424, respectively.
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