A Gram-negative, motile, rod-shaped organism, strain AP13T, able to produce yellow-pigmented colonies, was isolated from the drinking water distribution system of Seville (Spain) and was characterized by using a polyphasic taxonomic approach. In 16S rRNA gene sequence comparisons, strain AP13T exhibited 96.9–95.6 % similarity with respect to the five recognized species of the genus Massilia. The DNA G+C content of strain AP13T was 66.0 mol%, a value that supports the affiliation of strain AP13T to the genus Massilia. DNA–DNA hybridization data and phenotypic properties confirmed that strain AP13T represents a novel species of the genus Massilia, for which the name Massilia aurea sp. nov. is proposed. The type strain is AP13T (=CECT 7142T=CCM 7363T=DSM 18055T=JCM 13879T).
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