1887

Abstract

Strain LB400 is the best-studied polychlorinated biphenyl (PCB) degrader. This organism has previously been allocated in the genus , since its 16S rRNA gene sequence shows 98·6 % sequence similarity to the type strains of and . A polyphasic study was undertaken to clarify the actual taxonomic position of this biotechnologically important organism and of two strains, one recovered from a blood culture vial and one from a coffee plant rhizosphere, both of which resembled strain LB400 in their whole-cell protein patterns. DNA–DNA hybridization experiments revealed that the three strains represented a single novel species, for which the name sp. nov. is proposed. Strains of this novel species can be differentiated phenotypically from nearly all other species by their inability to assimilate -arabinose. The whole-cell fatty acid profile of strains is consistent with their classification in the genus , with 18 : 17, 16 : 17, 16 : 0, 14 : 0 3OH, 16 : 0 3OH, 17 : 0 cyclo and 14 : 0 being the most abundant fatty acids. The G+C content of the species varies between 62·4 and 62·9 mol%. The type strain of is LB400 (=LMG 21463=CCUG 46959=NRRL B-18064).

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2004-09-01
2021-10-25
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