期刊
出版社
MICROBIOLOGY SOC
DOI: 10.1099/ijsem.0.005798
关键词
Alcanivorax xiamenensis; hydrocarbon degradation; seawater; taxonomy
类别
A novel Alcanivorax-related strain, designated 6-D-6T, was isolated from the surface seawater collected around Xiamen Island. The strain belongs to the genus Alcanivorax and represents a new species, named Alcanivorax xiamenensis sp. nov., based on phenotypic and genotypic characteristics. The type strain is 6-D-6T (=MCCC 1A01359T=KCTC 92480T).
A novel Alcanivorax-related strain, designated 6-D-6T, was isolated from the surface seawater collected around Xiamen Island. The novel strain is Gram- stain- negative, rod- shaped and motile, and grows at 10-45 & DEG;C, pH 6.0-9.0 and in the presence of 0.5-15.0 % (w/v) NaCl. Phylogenetic analysis based on the 16S rRNA gene sequences indicated that it belongs to the genus Alcanivorax, with the highest sequence similarity to Alcanivorax dieselolei B5T (99.9 %), followed by Alcanivorax xenomutans JC109T (99.5 %), Alcanivorax balearicus MACL04T (99.3 %) and other 13 species of the genus Alcanivorax (93.8 %-95.6 %). The digital DNA-DNA hybridization and average nucleotide identity values between strain 6- D- 6T and three close type strains were 40.1-42.9/90.6-91.4 %, and others were below 22.9/85.1 %, respectively. The novel strain contained major cellular fatty acids of C16: 0 (31.0 %), C19:0 & omega;8c cyclo (23.5 %), C17: 0 cyclo (9.7 %), C12: 0 3OH (8.6 %), summed feature 8 (7.6 %) and C12: 0 (5.4 %). The genomic G+C content of strain 6- D- 6T was 61.38 %. Phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, two unidentified phospholipids and one amino- group- containing phospholipid were detected. On the basis of phenotypic and genotypic characteristics, strain 6- D- 6T represents a novel species within the genus Alcanivorax, for which the name Alcanivorax xiamenensis sp. nov. is proposed. The type strain is 6- D- 6T (=MCCC 1A01359T=KCTC 92480T).
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