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Pigmentiphaga daeguensis sp. nov., isolated from wastewater of a dye works, and emended description of the genus Pigmentiphaga

¹ Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea
² Department of Microbiology, College of Medicine, Chungang University, 221 Heukseok-dong, Seoul, Korea

Correspondence
Jung-Hoon Yoon
jhyoon{at}kribb.re.kr

A Gram-negative, non-spore-forming, rod-shaped Pigmentiphaga-like bacterial strain, K110^T, was isolated from wastewater collected from a dye works in Korea and was subjected to a polyphasic taxonomic analysis. Strain K110^T grew optimally at pH 7.0–-8.0 and 37 °C in the presence of 0.5 % (w/v) NaCl. It contained Q-8 as the predominant ubiquinone and C_{16 : 0}, cyclo C_{17 : 0} and cyclo C_{19 : 0}8c as the major fatty acids. The major polar lipids were phosphatidylglycerol, phosphatidylethanolamine and two unidentified aminolipids. The DNA G+C content was 67.4 mol%. In a neighbour-joining phylogenetic tree constructed on the basis of 16S rRNA gene sequences, strain K110^T joined Pigmentiphaga kullae, the sole species of the genus, at a bootstrap confidence level of 100 %. Strain K110^T exhibited a 16S rRNA gene sequence similarity of 99.4 % with respect to the type strain of P. kullae. Although strain K110^T was found to be similar to P. kullae in terms of phenotypic properties, it differed in terms of motility, polar lipids, DNA–DNA relatedness and repetitive extragenic palindromic PCR genomic fingerprinting patterns. On the basis of phenotypic, phylogenetic and genetic data, strain K110^T represents a novel species of the genus Pigmentiphaga, for which the name Pigmentiphaga daeguensis sp. nov. is proposed. The type strain is K110^T (=KCTC 12838^T=JCM 14330^T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain K110^T is EF100696.

rep-PCR fingerprints and cellular fatty acid compositions for strain K110^T and P. kullae DSM 13608^T are available as supplementary material with the online version of this paper.

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				J.-H. Yoon, S.-J. Kang, S. Park, and T.-K. Oh Daeguia caeni gen. nov., sp. nov., isolated from sludge of a textile dye works Int J Syst Evol Microbiol, January 1, 2008; 58(1): 168 - 172. [Abstract] [Full Text] [PDF]