Dyadobacter sandarakinus sp. nov., isolated from Arctic tundra soil, and emended descriptions of Dyadobacter alkalitolerans, Dyadobacter koreensis and Dyadobacter psychrophilus

2021 ◽  
Vol 71 (11) ◽  
Author(s):  
Yongping Zhang ◽  
Xiaoya Peng ◽  
Kun Qin ◽  
Jia Liu ◽  
Qiang Xu ◽  
...  
Keyword(s):  
Type Species ◽  
Arctic Tundra ◽  
Rrna Gene ◽  
Aerobic Bacterium ◽  
Tundra Soil ◽  
Unidentified Phospholipid ◽  
Polar Lipid Profile ◽  
Content Type ◽  
Link Type ◽  
Arctic Tundra Soil

Strain Q3-56T, isolated from Arctic tundra soil, was found to be a Gram-stain-negative, yellow-pigmented, oxidase- and catalase-positive, non-motile, non-spore-forming, rod-shaped and aerobic bacterium. Strain Q3-56T grew optimally at pH 7.0 and 28 °C. The strain could tolerate up to 1 % (w/v) NaCl with optimum growth in the absence of NaCl. The strain was not sensitive to oxacillin and ceftazidime. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain Q3-56T belonged to the genus Dyadobacter . Strain Q3-56T showed the highest sequence similarities to Dyadobacter luticola T17T (96.58 %), Dyadobacter ginsengisoli Gsoil 043T (96.50 %), Dyadobacter flavalbus NS28T (96.43 %) and Dyadobacter bucti QTA69T (96.43 %). The predominant respiratory isoprenoid quinone was identified as MK-7, The polar lipid profile of strain Q3-56T was found to contain one phosphatidylethanolamine, three unidentified aminolipids, three unidentified lipids and one unidentified phospholipid. The G+C content of the genomic DNA was determined to be 49.1 mol%. The main fatty acids were summed feature 3 (comprising C16 : 1  ω7c/C16 : 1  ω6c), iso-C15 : 0, C16 : 1  ω5c and iso-C16 : 1 3-OH. On the basis of the evidence presented in this study, a novel species of the genus Dyadobacter , Dyadobacter sandarakinus sp. nov., is proposed, with the type strain Q3-56T (=CCTCC AB 2019271T=KCTC 72739T). Emended descriptions of Dyadobacter alkalitolerans , Dyadobacter koreensis and Dyadobacter psychrophilus are also provided.

scholarly journals Bacillus acidinfaciens sp. nov., isolated from farmland soil

2019 ◽  
Vol 69 (4) ◽  
pp. 1075-1080 ◽  
Author(s):  
Leni Sun ◽  
Yan Chen ◽  
Wei Tian ◽  
Lunguang Yao ◽  
Zhaojin Chen ◽  
...  
Keyword(s):  
Type Species ◽  
Phylogenetic Analyses ◽  
Draft Genome ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Unidentified Phospholipid ◽  
Polar Lipid Profile ◽  
Content Type ◽  
Link Type ◽  
Farmland Soil

A Gram-stain-positive, rod-shaped, motile bacterial strain, designated 3-2-2T, was isolated from field topsoil collected from a western suburb of Nanyang city, Henan province, China. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain 3-2-2T was a member of the genus Bacillus and most closely related to Bacillus fortis R-6514T (98.9 % similarity), Bacillus terrae RA9T (98.0 %) and Bacillus fordii R-7190T (97.7 %). A draft genome sequence determined for strain 3-2-2T revealed a DNA G+C content of 42.2 mol%. The average nucleotide identity and digital DNA–DNA hybridization values between 3-2-2T and the closely related Bacillus species ranged 79.4–84.2 % and 23.4–24.6 %. The major fatty acids of strain 3-2-2T were iso-C15 : 0, anteiso-C15 : 0, iso-C14 : 0 and iso-C16 : 0. The major isoprenoid quinone was MK-7. meso-Diaminopimelic acid was detected in the peptidoglycan. The polar lipid profile consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, an unidentified phospholipid and an unidentified lipid. The results of phylogenetic analyses, in silico genomic comparisons, and chemotaxonomic and phenotypic analyses clearly indicated that strain 3-2-2T represents a novel species within the genus Bacillus , for which the name Bacillus acidinfaciens sp. nov. is proposed. The type strain is 3-2-2T (=CGMCC 1.13685T=LMG 30839T).

Kaistella flava sp. nov., isolated from Antarctic tundra soil, and emended descriptions of Kaistella yonginensis, Kaistella jeonii, Kaistella antarctica and Kaistella chaponensis

2021 ◽  
Author(s):  
Xiaoya Peng ◽  
Yumin Zhang ◽  
Yijing Lu ◽  
Xueyin Zhou ◽  
Zhourui Wei ◽  
...  
Keyword(s):  
Type Species ◽  
Rrna Gene ◽  
Aerobic Bacterium ◽  
Polar Lipid Profile ◽  
Content Type ◽  
Link Type ◽  
The Family ◽  
Optimum Ph ◽  
Genome Level ◽  
Sequence Similarities

A rod-shaped, yellow-pigmented, Gram-stain-negative, non-motile and aerobic bacterium, designated 7-3AT, was isolated from soil from King George Island, maritime Antarctica, and subjected to a polyphasic taxonomic study. Growth occurred at 4–37 °C (optimum, 20°C) and at pH 5.0–9.0 (optimum, pH 7.0–8.0). Tolerance to NaCl was up to 4 % (w/v) with optimum growth in the absence of NaCl. The results of phylogenetic analysis based on 16S rRNA gene sequences indicated that strain 7-3AT represented a member of the family Flavobacteriaceae . Strain 7-3AT showed the highest sequence similarities with Kaistella yonginensis HMD 1043T (96.65 %), Kaistella carnis NCTC 13525T (96.53 %), Kaistella chaponensis DSM 23145T (96.27 %), Kaistella antarctica LMG 24720T (96.13 %) and Kaistella jeonii DSM 17048T (96.06 %). A whole genome-level comparison of 7-3AT with K. jeonii DSM 17048T, K. antarctica LMG 24720T, K. chaponensis DSM 23145T, and Kaistella palustris DSM 21579T revealed average nucleotide identity (ANI) values of 79.03, 82.25, 78.12, and 74.42 %, respectively. The major respiratory isoprenoid quinone was identified as MK-6 and a few ubiquinones Q-10 were identified. In addition, flexirubin-type pigments were absent. The polar lipid profile of 7-3AT was found to contain one phosphatidylethanolamine, six unidentified aminolipids (AL) and two unidentified lipids (L). The G+C content of the genomic DNA was determined to be 34.54 mol%. The main fatty acids were iso-C15 : 0, summed feature 9 (comprising iso-C17 : 1ω9c and/or C16 : 0 10-methyl), anteiso-C15 : 0, iso-C13 : 0 and summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c). On the basis of the evidence presented in this study, a novel species of the genus Kaistella , Kaistella flava sp. nov., is proposed, with the type strain 7-3AT (=CCTCC AB 2016141T= KCTC 52492T). Emended descriptions of Kaistella yonginensis , Kaistella jeonii , Kaistella antarctica and Kaistella chaponensis are also given.

Fertoeibacter niger gen. nov., sp. nov. a novel alkaliphilic bacterium of the family Rhodobacteraceae

2019 ◽  
Vol 71 (3) ◽  
Author(s):  
Sára Szuróczki ◽  
Gorkhmaz Abbaszade ◽  
Dominika Buni ◽  
Károly Bóka ◽  
Peter Schumann ◽  
...  
Keyword(s):  
Type Species ◽  
Draft Genome ◽  
Rrna Gene ◽  
Bacterial Strains ◽  
Unidentified Phospholipid ◽  
Polar Lipid Profile ◽  
Novel Genus ◽  
Content Type ◽  
Link Type ◽  
The Family

Three Gram-stain-negative, non-motile, oxidase- and catalase-positive, rod-shaped, black, facultative phototrophic bacterial strains, RG-N-1aT, DMA-N-7a and RA-N-9 were isolated from the water sample from Lake Fertő/Neusiedler See (Hungary). Phylogenetic analysis based on the 16S rRNA gene sequences revealed that the strains form a distinct linage within the family Rhodobacteraceae and their closest relatives are Tabrizicola piscis K13M18T (96.32%) followed by Cypionkella psychrotolerans PAMC 27389T (96.25%). The novel bacterial strains prefer alkaline environments and grow optimally at 23–33 °C in the presence of NaCl (1–2 w/v%). Bacteriochlorophyll a was detected. Cells contained exclusively ubiquinone Q-10. The major cellular fatty acids were C18 : 1ω7c, C19 : 1iso ω5c, C18 : 0 3-OH and C18 : 1ω7c 11-methyl. The polar lipid profile contains diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, an unidentified phospholipid and four unidentified lipids. The assembled draft genome of RG-N-1aT had 33 contigs with N50 values 315 027 nt, 96× genome coverage, total length of 4 326 551 bp and a DNA G+C content of 64.9%. Genome-based calculations (genome-to-genome distance and DNA G+C percentage) and pairwise amino acid identity (AAI <73.5%) indicate that RG-N-1aT represents a novel genus. RG-N-1aT (=DSM 108317T=NCAIM B.02647T) is suggested as the type strain of a novel genus and species in the family Rhodobacteraceae , for which the name Fertoeibacter niger gen. nov., sp. nov. is proposed.

Entomomonas asaccharolytica sp. nov., isolated from Acheta domesticus

2021 ◽  
Vol 71 (9) ◽  
Author(s):  
Hans-Jürgen Busse ◽  
Peter Kämpfer ◽  
Michael P. Szostak ◽  
Joachim Spergser
Keyword(s):  
Type Species ◽  
Amino Acid Identity ◽  
Acheta Domesticus ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Unidentified Phospholipid ◽  
Polar Lipid Profile ◽  
Content Type ◽  
Link Type ◽  
Diamino Acid

Strain F2AT, isolated from the cricket Acheta domesticus, was subjected to a polyphasic taxonomic characterization. Cells of the strain were rod-shaped, Gram-stain-negative and catalase- and oxidase-positive. It did not assimilate any carbohydrates. The strain's 16S rRNA gene sequence showed highest similarity to Entomomonas moraniae QZS01T (96.4 %). The next highest similarity values were found to representatives of related genera (<93 %). The genome size of strain F2AT was 3.2 Mbp and the G+C content was 36.4 mol%. Average nucleotide identity values based on blast and MUMmer and average amino acid identity values between strain F2AT and E. moraniae QZS01T were 74.29/74.43, 83.88 and 74.70 %, respectively. The quinone system predominantly contained ubiquinone Q-8. In the polar lipid profile, diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol and an unidentified phospholipid were detected. The polyamine pattern consisted of the major compounds putrescine and spermidine. Major fatty acids were C18 : 1 ω7c and C16 : 0 and the hydroxyl acids were C12 : 0 3-OH, C14 : 0 2-OH and C14 : 0 3-OH. The diagnostic diamino acid of the peptidoglycan was meso-diaminopimelic acid. Due to its association with the only species of the genus Entomomonas but its distinctness from E. moraniae we here propose the novel species Entomomonas asaccharolytica sp. nov. F2AT (=CCM 9136T=LMG 32211T).

Bacillus paraflexus sp. nov., isolated from compost

2013 ◽  
Vol 63 (Pt_12) ◽  
pp. 4735-4743 ◽  
Author(s):  
Piyush Chandna ◽  
Shanmugam Mayilraj ◽  
Ramesh Chander Kuhad
Keyword(s):  
Type Species ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Aerobic Bacterium ◽  
Polar Lipid Profile ◽  
Content Type ◽  
Link Type ◽  
Bacillus Flexus ◽  
Diamino Acid ◽  
Physiological Tests

A Gram-stain-positive, rod-shaped, endospore-forming, aerobic bacterium capable of growing at 15–42 °C (optimum 30 °C) and at pH 5–11 (optimum pH 7) was isolated from compost. Its taxonomic position was deduced using a polyphasic approach and the strain was designated RC2T. 16S rRNA gene sequence analysis showed that the isolate belongs to the division Firmicutes , forming a clade within the cluster containing Bacillus flexus IFO 15715T, and showed highest similarity to B. flexus IFO 15715T (98.1 %). The cell wall contained meso-diaminopimelic acid as the diagnostic diamino acid. The major cellular fatty acids of the novel strain were iso-C15:0 (36.83 %), anteiso-C15:0 (49.19 %) and C16:0 (5.19 %). DNA–DNA hybridization between strain RC2T and B. flexus DSM 1320T showed a level of relatedness of 54.5 %. The polar lipid profile of strain RC2T showed the presence of phosphatidylglycerol, diphosphatidylglycerol and phosphatidylethanolamine. The predominant isoprenoid quinone was MK-7 and the G+C content of strain RC2T was 37.6 mol%. On the basis of phenotypic characteristics, phylogenetic analysis and the results of biochemical and physiological tests, strain RC2T was clearly distinguished from closely related members of the genus, and the strain is assigned to a novel species, for which the name Bacillus paraflexus sp. nov. is proposed. The type strain is RC2T ( = MTCC 9831T = MCC 2100T = KCTC 13724T = CCM 7754T).

scholarly journals Hymenobacter kanuolensis sp. nov., a novel radiation-resistant bacterium

2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 2108-2112 ◽  
Author(s):  
Shiyou Su ◽  
Ming Chen ◽  
Chao Teng ◽  
Shijie Jiang ◽  
Chen Zhang ◽  
...  
Keyword(s):  
16S Rrna ◽  
Type Species ◽  
Tibet Plateau ◽  
Rrna Gene ◽  
Aerobic Bacterium ◽  
Polar Lipid Profile ◽  
Content Type ◽  
Link Type ◽  
Radiation Resistant ◽  
Polyphasic Characterization

A Gram-reaction-negative, rod-shaped, non-motile, red-pigmented, radiation-resistant, aerobic bacterium designated T-3T was isolated from a soil sample from the Qinghai–Tibet Plateau in Tibet, China, after exposure to 10 kGy gamma radiation. Phylogenetic analysis based on 16S rRNA sequences indicated that this isolate represented a novel member of the genus Hymenobacter . Sequence identities of the 16S rRNA gene of strain T-3T with the type strains of species of the genus Hymenobacter with validly published names range from 89 % to 97 %, and the most closely related species is Hymenobacter psychrotolerans Tibet-IIU11T (97 %). The DNA–DNA relatedness between strain T-3T and H. psychrotolerans is 59.10 %. The major fatty acids of strain T-3T were iso-C15 : 0 (27.66 %), summed feature 4 (iso-C17 : 1I and/or anteiso-C17 : 1B, 15.84 %), anteiso-C15 : 0 (14.08 %) and summed feature 3 (C16 : 1ω7c and/orC16 : 1ω6c, 12.38 %). The major menaquinone of strain T-3T was MK-7. Phosphatidylethanolamine (PE) was predominant in the polar lipid profile. The G+C content of the DNA of strain T-3T was 69.17 mol%. On the basis of the results of the polyphasic characterization presented in this study, it is concluded that strain T-3T represents a novel species of the genus Hymenobacter , for which the name Hymenobacter kanuolensis is proposed. The type strain is T-3T ( = ACCC 05760T = KCTC 32407T).

Hoyosella suaedae sp. nov., a novel bacterium isolated from rhizosphere soil of Suaeda aralocaspica (Bunge) Freitag & Schütze

2021 ◽  
Vol 71 (11) ◽  
Author(s):  
Dan-Feng Liu ◽  
Shao-Qi Chen ◽  
Hong-Fei Wang ◽  
Yuan-Guo Xie ◽  
Rui Gao ◽  
...  
Keyword(s):  
Type Species ◽  
Rhizosphere Soil ◽  
Phylogenetic Analyses ◽  
Rrna Gene ◽  
Ph Homeostasis ◽  
Unidentified Phospholipid ◽  
Polar Lipid Profile ◽  
Content Type ◽  
North West ◽  
Link Type

A Gram-stain-positive, non-motile and coccus-shaped bacterium, designated strain LNNU 331112T, was isolated from the composite rhizosphere soil of the halophyte Suaeda aralocaspica (Bunge) Freitag and Schütze, which was collected in Xinjiang, north-west China. Growth occurred at 10–45 °C, pH 6.0–11.0 and in the presence of 0–10 % NaCl (w/v). Phylogenetic analysis based on the 16S rRNA gene sequence suggested that strain LNNU 331112T belonged to the genus Hoyosella and showed 95.6, 95.5 and 95.4 % sequence similarities to Hoyosella altamirensis DSM 45258T, Hoyosella subflava CGMCC 4.3532T and Hoyosella rhizosphaerae CGMCC 1.15478T, respectively. The estimated digital DNA–DNA hybridization relatedness values between strain LNNU 331112T and the type strains of H. altamirensis DSM 45258T, H. subflava CGMCC 4.3532T and H. rhizosphaerae CGMCC 1.15478T were 18.9, 19.3 and 18.3 %, respectively. The average nucleotide identity values between strain LNNU 331112T and H. altamirensis DSM 45258T, H. subflava CGMCC 4.3532T and H. rhizosphaerae CGMCC 1.15478T were 72.6, 72.7 and 72.3 %, respectively. The genome sequence of strain LNNU 331112T showed 69.0–72.3 % average amino acid identity values in comparison with the related genome sequences of three validly published Hoyosella species. The genome of strain LNNU 331112T was 3.47 Mb, with a DNA G+C content of 68.4 mol%. A total of 3182 genes were identified as protein-coding in strain LNNU 331112T. Genomic analysis revealed that a number of genes involved in osmotic pressure regulation, intracellular pH homeostasis and potassium (K+) uptake protein were found in strain LNNU 331112T. The predominant menaquinones were MK-8 (44.6 %) and MK-7 (55.4 %), which differentiated strain LNNU 331112T from other three recognized Hoyosella species. Major fatty acids (>10 %) were C17 : 1 ω8c (33.8 %), C16 : 0 (23.3 %), C17 : 0 (12.8 %) and summed feature 3 (12.9 %), which also clearly separated strain LNNU 331112T from three recognized Hoyosella species. The polar lipid profile of strain LNNU 331112T included diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol, one unidentified glycolipid, one unidentified phospholipid and two unidentified lipids. According to the results of phenotypic, chemotaxonomic and phylogenetic analyses, strain LNNU 331112T is considered to represent a novel species of the genus Hoyosella , for which the name Hoyosella suaedae sp. nov. is proposed. The type strain is LNNU 331112T (=KCTC 39808T=CGMCC 1.17107T=DSM 103463T).

Luteolibacter luojiensis sp. nov., isolated from Arctic tundra soil, and emended description of the genus Luteolibacter

2012 ◽  
Vol 62 (Pt_9) ◽  
pp. 2259-2263 ◽  
Author(s):  
Fan Jiang ◽  
Wenjuan Li ◽  
Mengchen Xiao ◽  
Jun Dai ◽  
Wenjing Kan ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Rrna Gene ◽  
Aerobic Bacterium ◽  
Tundra Soil ◽  
Svalbard Archipelago ◽  
Content Type ◽  
Link Type ◽  
Emended Description

A yellow-pigmented, Gram-reaction-negative, non-motile, aerobic bacterium, designated DR4-30T, was isolated from tundra soil near Ny-Ålesund, Svalbard Archipelago, Norway (78° 58′ N 12° 03′ E). Growth occurred at 4–28 °C (optimum 20–25 °C) and at pH 7–8 (optimum pH 7). Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain DR4-30T belongs to the genus Luteolibacter in the family Verrucomicrobiaceae . The 16S rRNA gene sequence of this strain showed 95.4 and 94.7 % sequence similarity to those of Luteolibacter pohnpeiensis A4T-83T and Luteolibacter algae A5J-41-2T, respectively. The major respiratory quinones were MK-9 and MK-10; the predominant cellular fatty acids were summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c; 20.7 %), iso-C14 : 0 (20.3 %), C17 : 0 (10.7 %), C16 : 0 (8.0 %) and C14 : 0 (6.6 %). The DNA G+C content was 57.3 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain DR4-30T represents a novel species of the genus Luteolibacter , for which the name Luteolibacter luojiensis sp. nov. is proposed. The type strain is DR4-30T ( = CCTCC AB 2010415T  = NRRL B-59669T). An emended description of the genus Luteolibacter is also provided.

scholarly journals Ornithinimicrobium pratense sp. nov., isolated from meadow soil

2020 ◽  
Vol 70 (12) ◽  
pp. 6450-6457
Author(s):  
Qiannan Guo ◽  
Bo Wang ◽  
Zhengfu Zhou ◽  
Xiubin Ke ◽  
Lijuan Zhang ◽  
...  
Keyword(s):  
Type Species ◽  
Rrna Gene ◽  
Unidentified Phospholipid ◽  
Polar Lipid Profile ◽  
Content Type ◽  
Forest Park ◽  
Link Type ◽  
Gene Sequence Analysis ◽  
Diamino Acid ◽  
Genome Analyses

A novel Gram-stain-positive, yellow, short-rod-shaped or coccoid bacterial strain, W204T, was isolated from a soil sample collected from Jiadengyu national forest park in China and characterized using a polyphasic approach. The cell-wall peptidoglycan contained ornithine as the diagnostic diamino acid. 16S rRNA gene sequence analysis indicated that strain W204T was closely related to Ornithinimicrobium flavum CPCC 203535T (97.4 %, similarity), Serinicoccus profundi CGMCC 4.5582T (96.9 %), Serinicoccus sediminis GP-T3-3T (96.8 %), Serinicoccus hydrothermalis JLT9T (96.7 %), Ornithinimicrobium cerasi CPCC 203383T (96.6 %) and Ornithinimicrobium kibberense K22-20T (96.6 %). However, the digital DNA–DNA genome hybridization value between strain W204T and the closest related strain O. flavum CPCC 203535T was 21.90 %. Complete genome analyses revealed that the size of the genome was 3.54 Mb and the genomic DNA G+C content was 70.79 mol%. The polar lipid profile consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, an unidentified glycolipid, an unidentified phospholipid and an unidentified lipid. The major menaquinone was MK-8(H4). The predominant cellular fatty acids were iso-C15 : 0, anteiso-C15 : 0 and C16 : 0. The phenotypic, chemotaxonomic and phylogenetic data suggested that strain W204T should be classified as representative of a novel species of the genus Ornithinimicrobium , for which the name Ornithinimicrobium pratense sp. nov. is proposed. The type strain is W204T (=GDMCC 1.1391T=KCTC 49237T).

scholarly journals Chitinimonas arctica sp. nov., isolated from Arctic tundra soil

2020 ◽  
Vol 70 (5) ◽  
pp. 3455-3461 ◽  
Author(s):  
Qiang Xu ◽  
Fan Jiang ◽  
Xuyang Da ◽  
Yumin Zhang ◽  
Yingchao Geng ◽  
...  
Keyword(s):  
Sequence Similarity ◽  
Arctic Tundra ◽  
Tundra Soil ◽  
16S Rrna Sequence ◽  
Unidentified Phospholipid ◽  
Content Type ◽  
Link Type ◽  
The Family ◽  
Bacterium Strain ◽  
Arctic Tundra Soil

A Gram-stain-negative, rod-shaped, green-pigmented, aerobic and motile bacterium, strain R3-44T, was isolated from Arctic tundra soil. Stain R3-44T clustered closely with members of the genus Chitinimonas , which belongs to the family Burkholderiaceae , and showed the highest 16S rRNA sequence similarity to Chitinimonas naiadis AR2T (96.10%). Strain R3-44T grew optimally at pH 7.0, 28 °C and in the presence of 0–0.5 % (w/v) NaCl. The predominant respiratory isoprenoid quinone of strain R3-44T was identified as ubiquinone Q-8. The polar lipids consisted of phosphatidylglycerol, phosphatidylethanolamine, unidentified aminolipid and unidentified phospholipid. The main fatty acids were summed feature 3 (comprising C16 : 1  ω7c and/or C16 : 1  ω6c, 40.6 %) and C16 : 0 (29.3 %). The DNA G+C content of strain R3-44T was 60.8 mol%. On the basis of the evidence presented in this study, strain R3-44T represents a novel species of the genus Chitinimonas , for which the name Chitinimonas arctica sp. nov. is proposed, with the type strain R3-44T (=CCTCC AB 2010422T=KCTC 72602T).

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