scholarly journals Sneathiella aquimaris sp. nov., isolated from aquaculture seawater

2020 ◽  
Vol 70 (6) ◽  
pp. 3824-3831 ◽  
Author(s):  
Guizhen Li ◽  
Qiliang Lai ◽  
Peisheng Yan ◽  
Li Gu ◽  
Zongze Shao
Keyword(s):  
Type Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Chromosomal Dna ◽  
Phenotypic Data ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
Major Respiratory Quinone ◽  
Type Strains

A novel marine bacterium, designated strain 216LB-ZA1-12T, was isolated from a Penaeus vannamei aquaculture seawater sample. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain 216LB-ZA1-12T belonged to the genus Sneathiella , with the highest sequence similarity to Sneathiella glossodoripedis MKT133T (97.7 %), followed by Sneathiella limimaris GH1-24T (97.0 %), Sneathiella chungangensis CAU 1294T (96.6 %) and Sneathiella chinensis LMG 23452T (96.1 %). The average nucleotide identity and the DNA–DNA hybridization estimate values between strain 216LB-ZA1-12T and four close type strains were between 69.2–71.3% and 16.7–17.8 %, respectively. The bacterium was Gram-stain-negative, facultatively anaerobic, oxidase and catalase positive, oval- to rod-shaped, and motile. Growth was observed at pH 7–9, salinities of 1–15% and temperatures of 4–42 °C. The G+C content of the chromosomal DNA was 48.50 mol%. The major respiratory quinone was determined to be Q-10. The principal fatty acids were summed feature 8 (C18 : 1  ω7c/ω6c) and C16 : 0. The major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine and aminophospholipid. The combined genotypic and phenotypic data show that strain 216LB-ZA1-12T represents a novel species within the genus Sneathiella , for which the name Sneathiella aquimaris sp. nov. is proposed, with the type strain 216LB-ZA1-12T (=MCCC 1A14570T=KCTC 72144T).

Jannaschia marina sp. nov., isolated from the gut of a gastropod, Onchidium reevesii

2021 ◽  
Author(s):  
Si Chen ◽  
Mengyuan He ◽  
Qiliang Lai ◽  
Ying Xu ◽  
Chenjing Shang
Keyword(s):  
Type Species ◽  
Sequence Similarity ◽  
Amino Acid Identity ◽  
Rrna Gene ◽  
Chromosomal Dna ◽  
Phenotypic Data ◽  
Unidentified Phospholipid ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type

A taxonomic study was carried out on strain SHC163T, which was isolated from the gut of Onchidium reevesii. The bacterium was Gram-stain-negative, oxidase-positive, catalase-negative and rod-shaped. Growth was observed at salinities of 0–4.0 % NaCl and at temperatures of 15–35 °C. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SHC163T belonged to the genus Jannaschia , with the highest sequence similarity to Jannaschia seosinensis CL-SP26T (97.9%), followed by Jannaschia faecimaris DSM 100420T (97.8 %), Jannaschia rubra CECT 5088T (97.5%) and eight species of the genus Jannaschia (94.7−97.1 %). The average amino acid identity, average nucleotide identity and the digital DNA–DNA hybridization estimate values between strain SHC163T and the type strains of the genus Jannaschia were 64.33−79.78 %, 71.0−78.4 % and 19.2−21.0%, respectively. The principal fatty acids (>5 %) were summed feature 8 (C18 : 1  ω7c/C18 : 1  ω6c, 56.5 %), C18 : 1  ω7c 11-methyl (23.1 %), C18 : 0 (8.7 %). The G+C content of the chromosomal DNA was 67.8 mol%. The respiratory quinone was determined to be Q-10 (100 %). The polar lipids were phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, an unidentified phospholipid, an unidentified aminolipid and aminophospholipid. The combined genotypic and phenotypic data show that strain SHC163T represents a novel species within the genus Jannaschia , for which the name Jannaschia marina sp. nov. is proposed, with the type strain SHC163T (=MCCC 1K04032T=KCTC 72524T).

scholarly journals Flavobacterium suzhouense sp. nov., isolated from farmland river sludge

2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 370-374 ◽  
Author(s):  
Hao Zhang ◽  
Ming-gen Cheng ◽  
Bin Sun ◽  
Su-hui Guo ◽  
Man Song ◽  
...  
Keyword(s):  
Type Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Major Polar Lipid ◽  
Strictly Aerobic ◽  
Phenotypic Data ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
Major Respiratory Quinone

A Gram-stain-negative bacterium, designated XIN-1T, was isolated from a farmland river sludge sample in Suzhou, China. Cells of strain XIN-1T were strictly aerobic, non-motile and rod-shaped. Strain XIN-1T grew optimally at pH 7.0 and 28 °C. Phylogenetic analysis of the 16S rRNA gene sequences showed that strain XIN-1T was most closely related to Flavobacterium hauense BX12T (98.2 % sequence similarity), followed by Flavobacterium beibuense F44-8T (96.3 %). The major respiratory quinone was menaquinone-6 and the major polar lipid was phosphatidylethanolamine. The major fatty acids (>5 %) were summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c), summed feature 4 (comprising iso-C17 : 1 I and/or anteiso-C17 : 1 B), iso-C15 : 0, C16 : 0 and iso-C17 : 0 3-OH. The genomic DNA G+C content of strain XIN-1T was 39.8 mol%. Strain XIN-1T showed low DNA–DNA relatedness with F. hauense BX12T (38.7±0.5 %). On the basis of genotypic and phenotypic data, strain XIN-1T is considered to represent a novel species of the genus Flavobacterium , for which the name Flavobacterium suzhouense sp. nov. is proposed. The type strain is XIN-1T ( = CCTCC AB 2014200T = KCTC 42107T).

scholarly journals Antarcticibacterium arcticum sp. nov., a bacterium isolated from marine sediment of the Canadian Beaufort Sea

2020 ◽  
Vol 70 (4) ◽  
pp. 2912-2917 ◽  
Author(s):  
Yung Mi Lee ◽  
Kiwoon Baek ◽  
Dong-Hun Lee ◽  
Yerin Park ◽  
Seung Chul Shin ◽  
...  
Keyword(s):  
Type Species ◽  
Sequence Similarity ◽  
Beaufort Sea ◽  
Rrna Gene ◽  
Phenotypic Data ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
Major Respiratory Quinone ◽  
Surface Sediment Sample

A Gram-stain-negative, aerobic, yellow-pigmented, flexirubin-negative, rod-shaped and non-motile bacterial strain, PAMC 28998T, was isolated from a surface sediment sample collected from the Canadian Beaufort Sea. Strain PAMC 28998T grew at 4–37 °C (optimum, 25 °C), at pH 7.0–9.0 (optimum, pH 7.5) and in the presence of 1.0–10.0 % (w/v) NaCl. Phylogenetic analysis based on the 16S rRNA gene sequence revealed that strain PAMC 28998T belongs to the genus Antarcticibacterium showing the highest sequence similarity (96.8 %) with Antarcticibacterium flavum JB01H24T. The average nucleotide identity and genome-to-genome distance values between PAMC 28998T and the most closely related species ( A. flavum JB01H24T) were 74.1 and 18.5 %, respectively, indicating that strain PAMC 28998T is clearly distinguished from A. flavum . The genomic DNA G+C content calculated from genome sequences was 39.8 %. The major fatty acids (>10 %) were iso-C15 : 0 (19.5 %), anteiso-C15 : 0 (18.0 %), iso-C16 : 0 (11.6 %) and summed feature 3 (C16:1 ω6c and/or C16:1 ω7c; 11.4 %). The major polar lipids were phosphatidylethanolamine, aminoglycolipid, two unidentified aminolipids, three unidentified phospholipids and four unidentified lipids. The major respiratory quinone was MK-6. Based on the phylogenetic, genomic and phenotypic data presented here, strain PAMC 28998T is considered to represent a novel species of the genus Antarcticibacterium , for which the name Antarcticibacterium arcticum sp. nov. is proposed with the strain PAMC 28998T (=KCCM 43316 T=JCM 33514T).

scholarly journals Zoogloea dura sp. nov., a N2-fixing bacterium isolated from forest soil and emendation of the genus Zoogloea and the species Zoogloea oryzae and Zoogloea ramigera

2020 ◽  
Vol 70 (10) ◽  
pp. 5312-5318 ◽  
Author(s):  
Ram Hari Dahal ◽  
Dhiraj Kumar Chaudhary ◽  
Dong-Uk Kim ◽  
Jaisoo Kim
Keyword(s):  
Forest Soil ◽  
Type Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
Major Respiratory Quinone ◽  
Type Strains ◽  
Zoogloea Ramigera

A motile, Gram-stain-negative, rod-shaped bacterium, designated G-4-1-14T, was obtained from forest soil sampled at Gwanggyo mountain, Gyeonggi-do, Republic of Korea. Cells were colourless, aerobic, grew optimally at 28–35 °C and hydrolysed DNA and casein. Phylogenetic analysis based on its 16S rRNA gene sequence revealed that strain G-4-1-14T formed a lineage within the genus Zoogloea . The closest members were Zoogloea resiniphila ATCC 70068T (98.6 % sequence similarity), Zoogloea caeni EMB43T (98.2 %), Zoogloea oryzae A-7T (97.7 %), Zoogloea ramigera IAM 12136T (96.9 %) and Zoogloea oleivorans BucT (96.2 %). The major respiratory quinone was ubiquinone-8 and the principal polar lipids were phosphatidylethanolamine, phosphatidyl-N-methylethanolamine, diphosphatidylglycerol and phosphatidylglycerol. The predominant cellular fatty acids were summed feature 3 (iso-C15 :0 2-OH/C16  : 1 ω7c) and C16 : 0. The DNA G+C content was 65.9 mol%. The average nucleotide identity and digital DNA–DNA hybridization relatedness values between strain G-4-1-14T and other type strains were ≤81.6 and ≤24.9 %, respectively, which are below the species demarcation thresholds. Based on the results of phenotypic, phylogenetic and genomic analyses, strain G-4-1-14T represents a novel species in the genus Zoogloea , for which the name Zoogloea dura sp. nov. is proposed. The type strain is G-4-1-14T (=KACC 21618T=NBRC 114358T). In addition, we propose emendation of the genus Zoogloea and the species Zoogloea oryzae and Zoogloea ramigera .

Croceimicrobium hydrocarbonivorans gen. nov., sp. nov., a novel marine bacterium isolated from a bacterial consortium that degrades polyethylene terephthalate

2021 ◽  
Vol 71 (4) ◽  
Author(s):  
Renju Liu ◽  
Qiliang Lai ◽  
Li Gu ◽  
Peisheng Yan ◽  
Zongze Shao
Keyword(s):  
Polyethylene Terephthalate ◽  
Type Species ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Rrna Gene ◽  
Phenotypic Data ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
The Family

A novel Gram-stain-negative, aerobic, gliding, rod-shaped and carotenoid-pigmented bacterium, designated A20-9T, was isolated from a microbial consortium of polyethylene terephthalate enriched from a deep-sea sediment sample from the Western Pacific. Growth was observed at salinities of 1–8 %, at pH 6.5–8 and at temperatures of 10–40 °C. The results of phylogenetic analyses based on the genome indicated that A20-9T formed a monophyletic branch affiliated to the family Schleiferiaceae , and the 16S rRNA gene sequences exhibited the maximum sequence similarity of 93.8 % with Owenweeksia hongkongensis DSM 17368T, followed by similarities of 90.4, 90.1 and 88.8 % with Phaeocystidibacter luteus MCCC 1F01079T, Vicingus serpentipes DSM 103558T and Salibacter halophilus MCCC 1K02288T, respectively. Its complete genome size was 4 035 598 bp, the genomic DNA G+C content was 43.2 mol%. Whole genome comparisons indicated that A20-9T and O. hongkongensis DSM 17368T shared 67.8 % average nucleotide identity, 62.7 % average amino acid identity value, 46.6% of conserved proteins and 17.8 % digital DNA–DNA hybridization identity. A20-9T contained MK-7 as the major respiratory quinone. Its major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and phospatidylcholine; and the major fatty acids were iso-C15 : 0 (37.5 %), iso-C16 : 0 3-OH (12.4 %), and summed feature 3 (C16 : 1ω7c /C16 : 1ω6c, 11.6 %). Combining the genotypic and phenotypic data, A20-9T could be distinguished from the members of other genera within the family Schleiferiaceae and represents a novel genus, for which the name Croceimicrobium hydrocarbonivorans gen. nov., sp. nov. is proposed. The type strain is A20-9T (=MCCC 1A17358T =KCTC 72878T).

Tsuneonella suprasediminis sp. nov., isolated from the Pacific Ocean

2019 ◽  
Vol 71 (3) ◽  
Author(s):  
Yan Gao ◽  
Guangyu Li ◽  
Chen Fang ◽  
Zongze Shao ◽  
Yue-Hong Wu ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Type Species ◽  
Sequence Similarity ◽  
Cellular Fatty Acid ◽  
Rrna Gene ◽  
Overlying Water ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
Type Strains

A Gram-stain-negative, rod-shaped and aerobic bacterial strain, named Ery12T, was isolated from the overlying water of the Lau Basin in the Southwest Pacific Ocean. Strain Ery12T showed high 16S rRNA gene sequences similarity to Tsuneonella flava MS1-4T (99.9 %), T. mangrovi MCCC 1K03311T (98.1 %), Altererythrobacter ishigakiensis NBRC 107699T (97.3 %) and exhibited ≤97.0 % sequence similarity with other type strains of species with validly published names. Growth was observed in media with 0–10.0 % NaCl (optimum 0–1.0 %, w/v), pH 5.0–9.5 (optimum 6.0–7.0) and 10–42 °C (optimum 30–37 °C). The predominant respiratory quinone was ubiquinone 10 (Q-10). The major cellular fatty acid was summed feature 8 (C18 : 1  ω7c and/or C18 : 1  ω6c). The major polar lipids were sphingoglycolipid, phosphatidyglycerol, diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, three unidentified glycolipids, one unidentified aminoglycolipid and one unidentified lipid. The DNA G+C content was 60.8 %. The ANI and in silico DDH values between strain Ery12T and the type strains of its closely related species were 71.0- 91.8 % and 19.5- 44.6 %, respectively. According to the phenotypic, chemotaxonomic, phylogenetic and genomic data, strain Ery12T represents a novel species of the genus Tsuneonella , for which the name Tsuneonella suprasediminis is proposed. The type strain is Ery12T (=CGMCC 1.16500 T=MCCC 1A04421T=KCTC 62388T). We further propose to reclassify Altererythrobacter rhizovicinus and Altererythrobacter spongiae as Pelagerythrobacter rhizovicinus comb. nov. and Altericroceibacterium spongiae comb. nov., respectively.

Flavobacterium compostarboris sp. nov., isolated from leaf-and-branch compost, and emended descriptions of Flavobacterium hercynium , Flavobacterium resistens and Flavobacterium johnsoniae

2012 ◽  
Vol 62 (Pt_8) ◽  
pp. 2018-2024 ◽  
Author(s):  
Joong-Jae Kim ◽  
Eiko Kanaya ◽  
Hang-Yeon Weon ◽  
Yuichi Koga ◽  
Kazufumi Takano ◽  
...  
Keyword(s):  
Type Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Major Polar Lipid ◽  
Strictly Aerobic ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
Flavobacterium Johnsoniae ◽  
Major Respiratory Quinone

A strictly aerobic, Gram-negative, yellow-pigmented, non-spore-forming rod, designated 15C3T, was isolated from aerobic leaf-and-branch compost at EXPO Park in Osaka, Japan. Growth was observed at 9–33 °C (optimum 25 °C) and pH 5.6–7.9 (optimum pH 6.1–7.0). No growth occurred with >2 % (w/v) NaCl. Strain 15C3T reduced nitrate to nitrogen and showed catalase activity but not oxidase activity. The predominant fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH and summed feature 3 (comprising C16 : 1ω7c and/or iso-C15 : 0 2-OH). The isolate contained phosphatidylethanolamine as the major polar lipid and menaquinone-6 as the major respiratory quinone. The G+C content of the genomic DNA of strain 15C3T was 33.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain 15C3T belonged to the genus Flavobacterium and was most closely related to Flavobacterium hercynium WB 4.2-33T (96.9 % sequence similarity). On the basis of phenotypic and phylogenetic distinctiveness, strain 15C3T is considered to represent a novel species in the genus Flavobacterium , for which the name Flavobacterium compostarboris sp. nov. is proposed. The type strain is 15C3T ( = KACC 14224T  = JCM 16527T). Emended descriptions of F. hercynium , Flavobacterium resistens and Flavobacterium johnsoniae are also given.

scholarly journals Marinobacter changyiensis, sp. nov., isolated from offshore sediment

2020 ◽  
Vol 70 (5) ◽  
pp. 3004-3011 ◽  
Author(s):  
Guangyu Li ◽  
Shanshan Wang ◽  
Yingbao Gai ◽  
Xiupian Liu ◽  
Qiliang Lai ◽  
...  
Keyword(s):  
Type Species ◽  
Sequence Similarity ◽  
Genomic Analysis ◽  
Rrna Gene ◽  
Respiratory Quinone ◽  
Promising Alternative ◽  
Content Type ◽  
Link Type ◽  
Marine Sediment Sample ◽  
Major Respiratory Quinone

An aerobic, Gram-stain-negative bacterium, designated CLL7-20T, was isolated from a marine sediment sample from offshore of Changyi, Shandong Province, China. Cells of strain CLL7-20T were rod-shaped, motile with one or more polar flagella, and grew optimally at pH 7.0, at 28 °C and with 3 % (w/v) NaCl. The principal fatty acids of strain CLL7-20T were C16 : 0 and summed feature 3 (C16 : 1 ω7c/C16 : 1 ω6c). The main polar lipids of strain CLL7-20T were phosphatidylethanolamine (PE), phosphatidylglycerol (PG), diphosphatidylglycerol (DPG) and an unidentified aminolipid (AL). Strain CLL7-20T contained Q-9 as the major respiratory quinone. The G+C content of its genomic DNA was 56.2 mol%. Phylogenetically, strain CLL7-20T branched within the genus Marinobacter , with M. daqiaonensis YCSA40T being its closest phylogenetic relative (96.7 % 16S rRNA gene sequence similarity), followed by M. sediminum R65T (96.6 %). Average nucleotide identity and in silico DNA–DNA hybridization values between strain CLL7-20T and the closest related reference strains were 73.2% and 19.8 %, respectively. On the basis of its phenotypic, phylogenetic and chemotaxonomic characteristics, we suggest that strain CLL7-20T (=MCCC 1A14855T=KCTC 72664T) is the type strain of a novel species in the genus Marinobacter , for which the name Marinobacter changyiensis sp. nov. is proposed. Based on the genomic analysis, siderophore genes were found from strain CLL7-20T, which indicate its potential as a promising alternative to chemical fertilizers in iron-limitated environments such as saline soils.

Litoreibacter roseus sp. nov., a novel bacteriochlorophyll a-containing bacterium

2021 ◽  
Author(s):  
Masataka Kanamuro ◽  
Yuki Sato-Takabe ◽  
So Muramatsu ◽  
Setsuko Hirose ◽  
Yuki Muramatsu ◽  
...  
Keyword(s):  
Type Strain ◽  
Type Species ◽  
Near Infrared ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Strictly Aerobic ◽  
Phenotypic Data ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type

A strictly aerobic, bacteriochlorophyll (BChl) a-containing alphaproteobacterium, designated strain K6T, was isolated from seawater around an aquaculture site in the Uwa Sea in Japan. The novel strain grew optimally at 30 °C at pH 7.0–7.5 and in the presence of 2.0 % (w/v) NaCl. The nonmotile and coccoid or rod-shaped cells formed pink-pigmented colonies on agar plates containing organic compounds. Cells showed an in vivo absorption maximum at 870 nm in the near-infrared region, indicating the presence of BChl a in the light-harvesting 1 complex. The new bacterial strain was Gram-stain-negative and oxidase- and catalase-positive. Phylogenetic analysis based on the 16S rRNA gene sequence showed that strain K6T was closely related to species in the genus Litoreibacter . The closest phylogenetic relatives of strain K6T were Litoreibacter ponti GJSW-31T (98.56 % sequence similarity), Litoreibacter janthinus KMM 3842T (97.63 %) and Litoreibacter albidus KMM 3851T (96.88 %). The G+C content of the genomic DNA was 58.26 mol%. The average nucleotide identity value of strain K6T with the type strain of L. ponti was 77.16 % (SD 4.79 %). The digital DNA−DNA hybridization value of strain K6T with the type strain of L. ponti was 19.40 %. The respiratory quinone was ubiquinone-10. The major cellular fatty acids were C18 : 1 ω7c, C16 : 0 and 11-methyl C18 : 1 ω7c. The dominant polar lipids were phosphatidylcholine and phosphatidylglycerol. On the basis of the genetic and phenotypic data obtained in the present study, we propose a new species in the genus Litoreibacter : Litoreibacter roseus sp. nov., whose type strain is K6T (=DSM 110109T=NBRC 114114T). Strain K6T represents the first confirmed species that produces BChl a within the genus Litoreibacter .

scholarly journals Algibacter psychrophilus sp. nov., a psychrophilic bacterium isolated from marine sediment

2015 ◽  
Vol 65 (Pt_6) ◽  
pp. 1735-1740 ◽  
Author(s):  
You-Jung Jung ◽  
Yung Mi Lee ◽  
Kiwoon Baek ◽  
Chung Yeon Hwang ◽  
Yirang Cho ◽  
...  
Keyword(s):  
Marine Sediment ◽  
Type Species ◽  
Ross Sea ◽  
Rrna Gene ◽  
Psychrophilic Bacterium ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
Major Respiratory Quinone ◽  
Type Strains

A Gram-stain-negative, aerobic, yellow-pigmented, flexirubin-negative, rod-shaped, non-motile and psychrophilic bacterial strain, PAMC 27237T, was isolated from marine sediment of the Ross Sea, Antarctica. Strain PAMC 27237T grew at 0–20 °C (optimally at 17 °C), at pH 5.0–9.5 (optimally at pH 7.0) and in the presence of 0–3.5 % (w/v) NaCl (optimally at 1.5–2.5 %). The major fatty acids (≥5 %) were iso-C17 : 0 3-OH, C17 : 0 2-OH, anteiso-C15 : 0, summed feature 3 (C16 : 1ω6c/C16 : 1ω7c), iso-C15 : 0 3-OH, anteiso-C17 : 1ω9c, anteiso-C15 : 1 A, iso-C16 : 0 3-OH and iso-C15 : 1 G. The major polar lipids were phosphatidylethanolamine, two unidentified aminolipids, four unidentified lipids and a glycolipid. The major respiratory quinone was MK-6. Phylogenetic analysis based on the 16S rRNA gene sequence revealed that strain PAMC 27237T belongs to the genus Algibacter, showing high similarities with the type strains of Algibacter agarivorans (97.2 %), Algibacter agarilyticus (97.0 %) and Algibacter mikhailovii (96.4 %). Average nucleotide identity values between strain PAMC 27237T and the type strains of A. agarivorans and A. agarilyticus were 83.1 and 84.2 %, respectively, and mean genome-to-genome distances were 22.4–24.2 %, indicating that strain PAMC 27237T is clearly distinguished from the most closely related species of the genus Algibacter . The genomic DNA G+C content calculated from genome sequences was 33.5 mol%. Based on the phenotypic, chemotaxonomic and phylogenetic data presented, strain PAMC 27237T is considered to represent a novel species of the genus Algibacter , for which the name Algibacter psychrophilus sp. nov. is proposed. The type strain is PAMC 27237T ( = KCTC 42130T = JCM 30370T).

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