AI Article Synopsis
- A novel Gram-stain-negative bacterium, YJPS3-2, was discovered in saltern sediment from the Yellow Sea, showing adaptability to various pH levels (5.0-10.0), temperatures (4-40 °C), and salt concentrations (1-15% NaCl).
- Genetic analysis linked YJPS3-2 closely with other strains but still indicated it is a new species, with significant differences in average nucleotide identity and DNA hybridization values.
- Characterization revealed its dominant respiratory quinone as Q-9, key fatty acids present, and a DNA G+C content of 68.1 mol%, supporting its classification as a new member of a specific genus.
Article Abstract
A novel Gram-stain-negative, rod-shaped, cream-coloured, motile, halotolerant bacterium, designated as YJPS3-2, was isolated from saltern sediment of the Yellow sea in Yongyu-do, Republic of Korea. Strain YJPS3-2 grew at pH 5.0-10.0 (optimum, pH 7.0), 4-40 °C (optimum, 30 °C) and with 1-15% (w/v) NaCl (optimum 3 %). The 16S rRNA gene sequence analysis indicated that strain YJPS3-2 was closely related to those of F5-7 (98.75 %), F8-11 (98.74 %), AAD6 (98.66 %), G-16.1 (98.34 %), SS20 (97.98 %) and NTU-107 (96.93 %). The average nucleotide identity and digital DNA-DNA hybridization values between YJPS3-2 and related type strains were 86.9-91.6 % and 32.0-44.8 %. Strain YJPS3-2 was characterized as having Q-9 as the predominant respiratory quinone and the principal fatty acids (>10 %) were C (31.4 %), C 8 cyclo (16.3 %), C cyclo (11.9 %) and C 3-OH (10.4 %). The polar lipids consisted of phosphatidylcholine, diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol. The DNA G+C content of strain YJPS3-2 is 68.1mol %. Based on the polyphasic taxonomic evidence presented in this study, YJPS3-2 should be classified as representing a novel species within the genus , for which name is proposed, with the type strain YJPS3-2 (= KCTC 92124=KACC 22561=JCM 35085).
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| http://dx.doi.org/10.1099/ijsem.0.005634 | DOI Listing |
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