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Pseudomonas formosensis sp. nov., a gamma-proteobacteria isolated from food-waste compost in Taiwan

By Shih-Yao Lin, Asif Hameed, You-Cheng Liu, Yi-Han Hsu, Wei-An Lai and Chiu-Chung Young

Abstract

A taxonomic study was carried out on a novel aerobic bacterial strain, designated CC-CY503T, isolated from food-waste compost in Taiwan. Cells were Gram-stain-negative short rods, motile by means of a monopolar flagellum. Strain CC-CY503T 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 Pseudomonas, with Pseudomonas pertucinogena ATCC 190T as the closest neighbour, sharing a sequence similarity of 97.9 %. The DNA–DNA relatedness value of strain CC-CY503T with P. pertucinogena ATCC 190T was 37.8±2.3 %. The phylogenetic trees reconstructed based on gyrB and rpoB gene sequences supported the classification of strain CC-CY503T as a novel member of the genus Pseudomonas. 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 C12 : 0, C16 : 0, C17 : 0 cyclo, C19 : 0 cyclo ω8c and summed features 3 and 8 consisting of C16 : 1ω7c/C16 : 1ω6c and C18 : 1ω7c/C18 : 1ω6c, respectively. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and phosphatidylcholine. On the basis of its distinct phylogenetic, phenotypic and chemotaxonomic features, strain CC-CY503T ( = BCRC 80437T = JCM 18415T) is proposed to represent a novel species within the genus Pseudomonas, for which the name Pseudomonas formosensis sp. nov. is proposed

Year: 2014
DOI identifier: 10.1099/ijs.0.049452-0
OAI identifier: oai:ir.lib.nchu.edu.tw:11455/85255
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