Maribaculum marinum gen. nov., sp. nov., isolated from deep seawater.
A taxonomic study was carried out on strain P38(T), which was isolated from an enriched polycyclic aromatic hydrocarbon-degrading consortium from a deep seawater sample collected from the Indian Ocean. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain P38(T) formed a distinct evolutionary lineage within the family Hyphomonadaceae. Strain P38(T) was most closely related to members of the genera Hyphomonas (92.3-93.5 % 16S rRNA gene sequence similarity), Hirschia (88.8 %), Maricaulis (88.3-88.6 %), Hellea (87.5 %), Oceanicaulis (87.4 %) and Robiginitomaculum (86.7 %) of the family Hyphomonadaceae. The DNA G+C content of strain P38(T) was 61.0 mol% and the predominant cellular fatty acids were C(16 : 0) (20 %), C(17 : 0) (5.7 %), C(18 : 1)omega7c (37.7 %), C(18 : 0) (6.3 %) and C(18 : 1)omega7c 11-methyl (7.1 %). Strain P38(T) was distinguishable from members of phylogenetically related genera by differences in several phenotypic properties. On the basis of the phenotypic and phylogenetic data, strain P38(T) represents a novel species of a new genus, for which the name Maribaculum marinum gen. nov., sp. nov. is proposed. The type strain of Maribaculum marinum is P38(T) (=CCTCC AB 208227(T)=LMG 24711(T)=MCCC 1A01086(T)).
Lai
Qiliang
Q
Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration, PR China.
Yuan
Jun
J
Shao
Zongze
Z
D020561:Alphaproteobacteria / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism; D004269:DNA, Bacterial / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D005227:Fatty Acids / Q000737:chemistry / Q000378:metabolism; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology*
D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S