Abstract
A novel bacterium, PB3-7B(T), was isolated on phenol-supplemented inorganic growth medium from a laboratory-scale wastewater purification system that treated coke plant effluent. 16S rRNA gene sequence analysis revealed that strain PB3-7B(T) belonged to the family Alcaligenaceae and showed the highest pairwise sequence similarity to Parapusillimonas granuli Ch07(T) (97.5%), Candidimonas bauzanensis BZ59(T) (97.3%) and Pusillimonas noertemannii BN9(T) (97.2%). Strain PB3-7B(T) was rod-shaped, motile and oxidase- and catalase-positive. The predominant fatty acids were C(16 : 0), C(17 : 0) cyclo, C(19 : 0) cyclo ω8c and C(14 : 0) 3-OH, and the major respiratory quinone was Q-8. The G+C content of the genomic DNA of strain PB3-7B(T) was 59.7 mol%. The novel bacterium can be distinguished from closely related type strains based on its urease activity and the capacity for assimilation of glycerol and amygdalin. On the basis of the phenotypic, chemotaxonomic and molecular data, strain PB3-7B(T) is considered to represent a new genus and species, for which the name Eoetvoesia caeni gen. nov., sp. nov. is proposed. The type strain of Eoetvoesia caeni is PB3-7B(T) ( = DSM 25520(T) = NCAIM B 02512(T)).
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