1887

Abstract

A Gram-negative, rod-like, stalk-producing bacterium, designated strain EMB102, was isolated from activated sludge that performed enhanced biological phosphorus removal in a sequencing batch reactor. Cells without stalks were motile with single polar flagella, but cells that did produce stalks were non-motile and lacked polar flagella. Growth of strain EMB102 was observed at temperatures between 15 and 35 °C (optimum, 30 °C) and between pH 6.0 and 9.0 (optimum, pH 7.5–8.5). The predominant fatty acids of strain EMB102 were C , C and C. The predominant polar lipid was phosphatidylglycerol. The G+C content of the genomic DNA was 64.1 mol% and the major quinone was Q-10. Comparative 16S rRNA gene sequence analyses showed that strain EMB102 formed a distinct phyletic lineage within the genus . The levels of 16S rRNA gene sequence similarity between the type strains of species ranged from 95.8 to 97.5 %. DNA–DNA relatedness levels between the EMB102 and closely related species were below 15.0 %. On the basis of chemotaxonomic data and molecular properties, strain EMB102 represents a novel species within the genus , for which the name sp. nov. is proposed. The type strain is EMB102 (=KCTC 12609=DSM 17977).

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2007-07-01
2020-01-22
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Tables showing Biolog assimilation data ( Table S1) and cellular fatty acid composition ( Table S2) for strain EMB102 and some related species are available as Acrobat PDF files.

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Tables showing Biolog assimilation data ( Table S1) and cellular fatty acid composition ( Table S2) for strain EMB102 and some related species are available as Acrobat PDF files.

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