Alteromonas portus sp. nov., an alginate lyase-excreting marine bacterium. Issue 3 (14th January 2020)

• Record Type: Journal Article
• Authors: Huang, Huiqin; Mo, Kunlian; Li, Shuang; Dongmei, Sun; Zhu, Jun; Zou, Xiaoxiao; Hu, Yonghua; Bao, Shixiang
• Is Part Of: International journal of systematic and evolutionary microbiology. Volume 70:Issue 3(2020)
• Page Start: 1516
• Page End: 1521
• Publication Date: 2020-01-14
• Subjects: Alteromonas portus sp. nov. -- polyphasic taxonomy -- 16S rRNA gene -- alginate lyase; Microbiology -- Periodicals; Microbiology -- Classification -- Periodicals; 579
• DOI: 10.1099/ijsem.0.003884
• Languages: English
• ISSNs: 1466-5026

Abstract

Abstract : An alginate lyase-excreting bacterium, designated strain HB161718 T, was isolated from coastal sand collected from Tanmen Port in Hainan, PR China. Cells were Gram-stain-negative rods and motile with a single polar flagellum. Its major isoprenoid quinone was ubiquinone 8 (Q-8), and its cellular fatty acid profile mainly consisted of C16 : 1 ω7 c and/or C16 : 1 ω6 c, C18 : 1 ω6 c and/or C18 : 1 ω7 c, C16 : 0, C17 : 0 10-methyl and C16 : 0 N alcohol. The G+C content of the genomic DNA was 44.1 mol%. 16S rRNA gene sequence analysis suggested that strain HB161718 T belonged to the genus Alteromonas, sharing 99.5, 99.4, 99.2, 98.9 and 98.5 % sequence similarities to its closest relatives, Alteromonas macleodii JCM 20772 T, Alteromonas gracilis 9a2 T, Alteromonas australica H17 T, Alteromonas marina SW-47 T and Alteromonas mediterranea DE T, respectively. The low values of DNA–DNA hybridization and average nucleotide identity showed that it formed a distinct genomic species. The combined phenotypic and molecular features supported the conclusion that strain HB161718 T represents a novel species of the genus Alteromonas, for which the name Alteromonas portus sp. nov. is proposed. The type strain is HB161718 T (=CGMCC 1.13585 T =JCM 32687 T ).