1887

Abstract

A Gram-negative, rod-shaped, non-spore-forming bacterium, isolated from placental tissue of a cow, was investigated for its taxonomic position. On the basis of 16S rRNA gene sequence similarities, strain UK34/07-5 was shown to belong to the class , closely related to the type strain of (96.0 % sequence similarity). The polyamine pattern showed the major compound spermidine and moderate amounts of putrescine. The major quinone was ubiquinone Q-10. The polar lipid profile was composed of the major compounds phosphatidylethanolamine, phosphatidylcholine, phosphatidylglycerol and phosphatidylmonomethylethanolamine and moderate amounts of diphosphatidylglycerol, three unidentified aminolipids and an unidentified phospholipid. The profile of major fatty acids, consisting of C cyclo ω8 and Cω7, with C 3-OH as the hydroxylated fatty acid, was very similar to that of M 2040. The results of DNA–DNA hybridization and physiological and biochemical tests allowed both genotypic and phenotypic differentiation of the isolate from . The relatively low 16S rRNA gene sequence similarity of 96.0 % to M 2040 and marked differences in the polar lipid profiles as well as the results of physiological tests and the DNA–DNA hybridization data support the creation of a novel species, for which the name sp. nov. is proposed, with the type strain UK34/07-5 ( = CIP 110303  = CCUG 61094  = DSM 24741  = CCM 7941).

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2012-05-01
2021-10-28
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