title: Pontibacter amylolyticus sp. nov., isolated from a deep-sea sediment hydrothermal vent field.
abstract: A Gram-stain-negative, short rod-shaped bacterium, designated 9-2T, was isolated from a sediment sample collected from a hydrothermal vent field on the south-west Indian Ridge. It formed red colonies, produced carotenoid-like pigments and did not produce bacteriochlorophyll a. Strain 9-2T was positive for hydrolysis of DNA, gelatin and starch, but negative for hydrolysis of aesculin and Tween 60. The sole respiratory quinone was menaquinone-7 (MK-7). The main polar lipids consisted of phosphatidylethanolamine, one unidentified phospholipid and two unidentified polar lipids. The principal fatty acids (>5%) were summed feature 4 (iso-C17:1 I and/or anteiso-C17:1 B), iso-C15:0 and iso-C17:0 3-OH. The genomic DNA G+C content was 49.2 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain 9-2T should be assigned to the genus Pontibacter. Levels of 16S rRNA gene sequence similarity between the new isolate and the type strains of Pontibacter species with validly published names were in the range 94.0-96.5%. On the basis of phenotypic and genotypic data, strain 9-2T represents a novel species of the genus Pontibacter, for which the name Pontibacter amylolyticus sp. nov. is proposed. The type strain is 9-2T (=CGMCC 1.12749T=JCM 19653T=MCCC 1K00278T).
authors.affiliation: Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PRChina.
authors.forename: Yue-Hong
authors.initials: YH
authors.lastname: Wu
authors.affiliation: Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PRChina.
authors.forename: Peng
authors.initials: P
authors.lastname: Zhou
authors.affiliation: Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PRChina.
authors.forename: Shu-Ling
authors.initials: SL
authors.lastname: Jian
authors.affiliation: Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PRChina.
authors.forename: Zhen-Sheng
authors.initials: ZS
authors.lastname: Liu
authors.affiliation: Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PRChina.
authors.forename: Chun-Sheng
authors.initials: CS
authors.lastname: Wang
authors.affiliation: Department of Plant and Environmental Sciences, the Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem 91904, Israel.
authors.forename: Aharon
authors.initials: A
authors.lastname: Oren
authors.affiliation: Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, PRChina.
authors.forename: Xue-Wei
authors.initials: XW
authors.lastname: Xu
mesh_terms: D015373:Bacterial Typing Techniques; D025541:Bacteriochlorophyll A; D001482:Base Composition; D041964:Cytophagaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D004269:DNA, Bacterial / Q000235:genetics; D005227:Fatty Acids / Q000737:chemistry; D019015:Geologic Sediments / Q000382:microbiology; D060086:Hydrothermal Vents / Q000382:microbiology*; D019156:Indian Ocean; D008969:Molecular Sequence Data; D010743:Phospholipids / Q000737:chemistry; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D024482:Vitamin K 2 / Q000031:analogs & derivatives / Q000737:chemistry
chemical_list: D025541:Bacteriochlorophyll A; D004269:DNA, Bacterial; D005227:Fatty Acids; D010743:Phospholipids; D012336:RNA, Ribosomal, 16S; D024482:Vitamin K 2; C062629:menaquinone 7