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Updated: Sep 30, 2025

Isolation, Propagation, and Identification of Bacterial Species with Hydrocarbon Metabolizing Properties from Aquatic Habitats
Published on: December 7, 2021
Pseudohalioglobus sediminis sp. nov., isolated from coastal sediment
Ya-Ning Zhang1, Tian-Shu Zhang1, Xu-Yang Chen1
1Marine College, Shandong University, Weihai, Shandong, 264209, People's Republic of China.
Abstract:
A Gram-stain-negative, strictly aerobic, non-motile and rod-shaped bacterial strain, designated NY5T, was isolated from marine sediment collected from coastal area in Weihai, China (122°07' 38.80'' E, 37°33' 57.60'' N). Cells of strain NY5T were 0.6-0.7 μm width and 1.9-2.0 μm length, catalase-positive and oxidase-positive. Growth of NY5T was observed at 25-37 °C (optimum, 28 °C) and pH 6.5-9.5 (optimum, pH 7.5-8.0) and in the presence of 0.5-7.0% (w/v) NaCl (optimum, 2.0%). The isoprenoid quinone was Q-8 and the predominant fatty acids were summed feature 8 (C18:1 ω7c and/or C18:1 ω6c), summed feature 3 (C16:1 ω7c and/or C16:1 ω6c) and C17:1 ω8c. Diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol were the major polar lipids. The DNA G+C content of strain NY5T was 60.1%. Strain NY5T showed the highest 16S rRNA gene sequence similarity (98.2%) with Pseudohalioglobus lutimaris followed by Parahaliea aestuarii (96.9%), Parahaliea maris (96.7%), Parahaliea mediterranea (95.9%), and Halioglobus japonicus (94.9%). Given these phenotypic and chemotaxonomic properties and phylogenetic analyses, strain NY5T was considered to represent a novel species of the genus Pseudohalioglobus, for which the name Pseudohalioglobus sediminis sp. nov. is proposed. The type strain is NY5T (=KCTC 72416T=MCCC 1H00401T).
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