Abstract
A Gram-positive actinobacterium, strain IV-75(T), was isolated by using R2A agar from the ultrapure water system of a power plant in Hungary. The strain exhibited a rod-coccus cell cycle, and was strictly aerobic, non-motile, catalase-positive and oxidase-negative. 16S rRNA gene sequence analysis revealed that strain IV-75(T) belonged to the suborder Micrococcineae and clustered with members of the family Intrasporangiaceae. Its closest phylogenetic neighbour was Arsenicicoccus bolidensis CCUG 47306(T) (94.3% 16S rRNA gene sequence similarity). The peptidoglycan of strain IV-75(T) contained meso-diaminopimelic acid and MK-10(H(4)) was the major menaquinone. The polar lipid pattern contained phosphatidylglycerol, two unidentified phospholipids, one glycolipid and several other lipid components. The major fatty acids were anteiso-C(15:0), C(18:1)ω9c and C(16:0). Based on the moderate levels of 16S rRNA gene sequence similarity to all members of the family Intrasporangiaceae and the unique combination of chemotaxonomic characteristics, strain IV-75(T) is considered to represent a novel species of a new genus, for which the name Aquipuribacter hungaricus gen. nov., sp. nov. is proposed. The type strain of Aquipuribacter hungaricus is IV-75(T) (=DSM 21674(T)=NCAIM B 02333(T)).
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