Streptococcus oricebi sp. nov., isolated from the oral cavity of tufted capuchin

A Gram-stain-positive, catalase-negative, coccus-shaped organism was isolated from the oral cavity of tufted capuchin (Cebus apella). Comparative 16S rRNA gene sequence analysis suggested classification of the organism within the genus Streptococcus. Strain M8^T was related most closely to Streptococcus oralis ATCC 35037^T (96.17 % similarity) followed by Streptococcus massiliensis CCUG 49690^T (95.90 %) based on the 16S rRNA gene. Strain M8^T was related most closely to S. massiliensis CCUG 49690^T (86.58 %) based on the RNA polymerase β subunit-encoding gene (rpoB), and to Streptococcus tigurinus AZ_3a^T (81.26 %) followed by S. massiliensis CCUG 49690^T (80.45 %) based on the 60 kDa heat- shock protein gene (groEL). The phylogenetic trees of 16S rRNA, rpoB and groEL gene sequences showed that strain M8^T was most closely related to S. massiliensis. Based on phenotypic characterization as well as 16S rRNA gene and housekeeping gene (rpoB and groEL) sequence data, a novel taxon, Streptococcus oricebi sp. nov. (type strain M8^T=JCM 30719^T=DSM 100101^T), is proposed.