RRC ID 51006
著者 Fu GY, Yu XY, Zhang CY, Zhao Z, Wu D, Su Y, Wang RJ, Han SB, Wu M, Sun C.
タイトル Mesorhizobium oceanicum sp. nov., isolated from deep seawater.
ジャーナル Int J Syst Evol Microbiol
Abstract A novel Gram-staining-negative, oval-shaped (0.4-0.6×0.8-1.0 µm), non-motile strain without flagella, designated B7T, was isolated from deep seawater in the South China Sea. Strain B7T was able to grow at 25-40 °C (optimum 35 °C), at pH 5.5-9.0 (optimum pH 7.0) and with 0-8 % (w/v) NaCl (optimum 3 %). Chemotaxonomic analysis showed that the predominant isoprenoid quinone was Q-10 and the dominant fatty acids were C19 : 0 cyclo 8c and summed feature 8 (C18 : 1ω7c/C18 : 1ω6c). The polar lipids of strain B7T were diphosphatidyglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, one unknown aminophospholipid, one unknown glycolipid and three unknown lipids. The DNA G+C content of the genomic DNA was 65.1 mol%. Phylogenetic analysis of 16S rRNA gene sequences showed that strain B7T belongs to the genus Mesorhizobium with similarities ranging from 96.2 to 97.5 %. Phylogenetic analyses of housekeeping genes recA, atpD and glnII indicated that strain B7T represented a distinct evolutionary lineage with the genus Mesorhizobium. OrthoANI values between strain B7T and related strains of the genus Mesorhizobium (<80 %) were lower than the threshold value of 95 % ANI relatedness for species demarcation. Therefore, strain B7T is concluded to represent a novel species of the genus Mesorhizobium, for which the name Mesorhizobium oceanicumsp. nov. is proposed. The type strain is B7T (=KCTC 42783T=MCCC 1K02305T).
巻・号 67(8)
ページ 2739-2745
公開日 2017-8-1
DOI 10.1099/ijsem.0.002009
PMID 28853693
MeSH Bacterial Typing Techniques Base Composition China DNA, Bacterial / genetics Fatty Acids / chemistry Glycolipids / chemistry Mesorhizobium / classification* Mesorhizobium / genetics Mesorhizobium / isolation & purification Phospholipids / chemistry Phylogeny* RNA, Ribosomal, 16S / genetics Seawater / microbiology* Sequence Analysis, DNA Ubiquinone / chemistry
IF 2.415
引用数 7
リソース情報
一般微生物 JCM 19897