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1 KACC, Genetic Resources Division, National Institute of Agricultural Biotechnology, Suwon, 441-707, Korea
2 School of Biological Sciences, Seoul National University, Seoul, 151-742, Korea
3 Department of Biological Science, Myong Ji University, Yongin 449-728, Korea
Correspondence
Joo-Won Suh
jwsuh{at}mju.ac.kr
Two actinomycete strains, DSA1T and HD9T, were isolated from a potato tuber and soil from a potato-cultivating field in Jeju, Korea, respectively. A comprehensive 16S rDNA analysis revealed that the isolates belong to the genus Kribbella and share 97·798·6 % sequence similarity to Kribbella species. The strains also contained typical chemotaxonomic markers of the genus Kribbella: LL-diaminopimelic acid, alanine, glycine and glutamic acid in the cell wall peptidoglycan; mannose, glucose, galactose and ribose as whole cell sugars; diphosphatidylglycerol, phosphatidylcholine and phosphatidylinositol as characteristic phospholipids; and the major menaquinone MK-9 (H4). DNADNA hybridization experiments showed that the isolates represented two distinct genomic species. A number of phenotypic properties can be used to differentiate the two isolates from Kribbella species. On the basis of polyphasic evidence, two novel species are proposed: Kribbella solani sp. nov. for strain DSA1T (=KACC 20196T=JCM 12205T) and Kribbella jejuensis sp. nov. for strain HD9T (=KACC 20266T=JCM 12204T).
Published online ahead of print on 30 April 2004 as DOI 10.1099/ijs.0.02953-0.
The GenBank/EMBL/DDBJ accession numbers for the 16S rDNA sequences of strains KACC 20196T, KACC 20248T, KACC 20249T, KACC 20250T and KACC 20266T are AY253862AY253866, respectively.
An extended neighbour-joining tree and a maximum-parsimony tree for the isolates and related actinomycete taxa are available as supplementary data in IJSEM Online.
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