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Abstract

A taxonomic study was carried out on a novel aerobic bacterial strain, designated CC-CY503, isolated from food-waste compost in Taiwan. Cells were Gram-stain-negative short rods, motile by means of a monopolar flagellum. Strain CC-CY503 was able to grow at 20–50 °C and pH 6.0–10.0 and to tolerate <6 % NaCl (w/v). Phylogenetic analysis of 16S rRNA gene sequences showed that this bacterium belonged to the genus , with ATCC 190 as the closest neighbour, sharing a sequence similarity of 97.9 %. The DNA–DNA relatedness value of strain CC-CY503 with ATCC 190 was 37.8±2.3 %. The phylogenetic trees reconstructed based on and gene sequences supported the classification of strain CC-CY503 as a novel member of the genus . The predominant quinone system was ubiquinone (Q-9) and the DNA G+C content was 63.1±0.4 mol%. The major fatty acids were C, C, C cyclo, C cyclo ω8 and summed features 3 and 8 consisting of Cω7/Cω6 and Cω7/Cω6, respectively. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and phosphatidylcholine. On the basis of its distinct phylogenetic, phenotypic and chemotaxonomic features, strain CC-CY503 ( = BCRC 80437 = JCM 18415) is proposed to represent a novel species within the genus , for which the name sp. nov. is proposed.

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2013-09-01
2020-01-22
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