Aestuariibaculum suncheonense gen. nov., sp. nov., a marine bacterium of the family Flavobacteriaceae isolated from a tidal flat and emended descriptions of the genera Gaetbulibacter and Tamlana

2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 332-338 ◽  
Author(s):  
Sang Hyeon Jeong ◽  
Moon Su Park ◽  
Hyun Mi Jin ◽  
Kangseok Lee ◽  
Woojun Park ◽  
...  

A Gram-staining-negative, yellow-pigmented, strictly aerobic bacterium, designated strain SC17T, was isolated from sediment of a tidal flat of Suncheon bay in South Korea. Cells were halotolerant, catalase- and oxidase-positive and non-motile rods. Growth of strain SC17T was observed at 5–40 °C (optimum, 25–30 °C), at pH 6.0–8.5 (optimum, pH 7.0) and in the presence of 1–8 % (w/v) NaCl (optimum, 1–2 %). The major cellular fatty acids were iso-C15 : 0, summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c and/or iso-C15 : 0 2-OH), iso-C17 : 0 3-OH, iso-C15 : 1 G and anteiso-C15 : 0. The polar lipid content consisted of phosphatidylethanolamine and unidentified amino lipids and lipids. The G+C content of the genomic DNA was 46.4 mol% and the only respiratory quinone detected was menaquinone-6 (MK-6). Phylogenetic inference based on 16S rRNA gene sequences showed that strain SC17T formed a distinct phyletic lineage within the family Flavobacteriaceae and was most closely related to members of the genera Gaetbulibacter and Tamlana with 95.0–95.8 % sequence similarity. On the basis of phenotypic and molecular features, strain SC17T represents a novel genus of the family Flavobacteriaceae , for which the name Aestuariibaculum suncheonense gen. nov., sp. nov. is proposed. The type strain is SC17T ( = KACC 16186T = JCM 17789T). Emended descriptions of the genera Gaetbulibacter and Tamlana are also proposed.

2013 ◽  
Vol 63 (Pt_8) ◽  
pp. 2872-2878 ◽  
Author(s):  
Sang Hyeon Jeong ◽  
Hyun Mi Jin ◽  
Che Ok Jeon

A Gram-staining-negative, yellow-pigmented, strictly aerobic bacterial strain motile by gliding, designated BS12T, was isolated from a tidal flat at Boseong, Korea. Cells were moderately halotolerant, catalase- and oxidase-positive rods. Growth was observed at 5–40 °C (optimum, 25 °C), at pH 5.5–9.0 (optimum, pH 7.0–7.5) and in the presence of 1–11 % (w/v) NaCl (optimum, 2–4 %). The major cellular fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH, iso-C17 : 1ω9c and anteiso-C15 : 0. The polar lipid pattern comprised phosphatidylethanolamine, four unidentified aminolipids and three unidentified lipids. The G+C content of the genomic DNA was 42.3 mol% and the only respiratory quinone was menaquinone 6. Phylogenetic inference based on 16S rRNA gene sequences showed that strain BS12T formed a tight phyletic lineage with members of the genus Gramella . Strain BS12T was most closely related to ‘ Gramella jeungdoensis’ HMD3159 with sequence similarity of 97.5 %, but the DNA–DNA relatedness value between the two strains was only 22.1±2.2 %. On the basis of phenotypic and molecular features, strain BS12T was shown to represent a novel species of the genus Gramella , for which the name Gramella aestuarii sp. nov. is proposed. The type strain is BS12T ( = KACC 16188T = JCM 17790T). An emended description of Gramella echinicola is also proposed.


2013 ◽  
Vol 63 (Pt_3) ◽  
pp. 971-976 ◽  
Author(s):  
Sang Hyeon Jeong ◽  
Hyun Mi Jin ◽  
Hyo Jung Lee ◽  
Che Ok Jeon

A Gram-stain-negative, ochre-pigmented, strictly aerobic bacterium, designated strain KJ7T, was isolated from a tidal flat of the Gangjin bay in South Korea. Cells were halotolerant, non-motile, catalase- and oxidase-positive rods. Growth of strain KJ7T was observed at 5–35 °C (optimum, 25 °C), at pH 6.0–9.5 (optimum, pH 6.5–7.0) and in the presence of 0–9 % (w/v) NaCl (optimum, 2 %). The major cellular fatty acids were C18 : 1ω7c, C17 : 1ω6c, summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c) and C16 : 0. The polar lipid pattern indicated the presence of phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, a sphingoglycolipid, an unidentified phospholipid and two unidentified lipids. The G+C content of the genomic DNA was 60.2±0.9 mol% and the predominant respiratory quinone was Q-10. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain KJ7T formed a phyletic lineage distinct from other members of the genus Altererythrobacter and was most closely related to Altererythrobacter luteolus SW-109T and Altererythrobacter namhicola KYW48T (95.6 and 95.0 % 16S rRNA gene sequence similarity, respectively). On the basis of phenotypic, chemotaxonomic and molecular features, strain KJ7T represents a novel species of the genus Altererythrobacter , for which the name Altererythrobacter gangjinensis sp. nov. is proposed. The type strain is KJ7T ( = KACC 16190T = JCM 17802T).


2012 ◽  
Vol 62 (Pt_7) ◽  
pp. 1528-1535 ◽  
Author(s):  
Dong-Heon Lee ◽  
Sun Ja Cho ◽  
Suk Min Kim ◽  
Sun Bok Lee

A Gram-staining-negative, strictly aerobic, non-motile, yellow-pigmented bacterium, designated strain M091T, was isolated from seawater at Damupo beach in Pohang, Republic of Korea, and investigated using a polyphasic taxonomic approach. The novel strain grew optimally at 25 °C, pH 7.0–8.0, and in the presence of 3 % (w/v) NaCl. In a phylogenetic analysis based on 16S rRNA gene sequences, strain M091T formed a lineage within the family Flavobacteriaceae that was distinct from the most closely related genera of Flaviramulus (95.1 % sequence similarity), Algibacter (94.9–93.9 %), Mariniflexile (94.8–94.2 %), Winogradskyella (94.8–93.2 %), Lacinutrix (94.7–93.8 %) and Tamlana (94.7–92.9 %). The polar lipid profile of the novel strain comprised phosphatidylethanolamine, two unidentified aminolipids, one unidentified phospholipid and seven unidentified lipids. The predominant cellular fatty acids were iso-C15 : 0 (20.5 %), iso-C17 : 0 3-OH (15.4 %), iso-C15 : 0 3-OH (12.4 %), C15 : 0 (10.9 %) and iso-C15 : 1 G (9.9 %). The genomic DNA G+C content of strain M091T was 34.4 mol% and the major respiratory quinone was MK-6. Based on phenotypic and genotypic data, strain M091T represents a new genus and novel species in the family Flavobacteriaceae , for which the name Postechiella marina gen. nov., sp. nov. is proposed. The type strain of the type species is M091T ( = KCTC 23537T = JCM 17630T).


2014 ◽  
Vol 64 (Pt_8) ◽  
pp. 2805-2811 ◽  
Author(s):  
Zhang Zhen-Li ◽  
Zhang Xin-Qi ◽  
Wu Nan ◽  
Zhang Wen-Wu ◽  
Zhu Xu-Fen ◽  
...  

A thermotolerant, Gram-strain-negative, non-spore-forming and strictly aerobic bacterium, designated GU51T, was isolated from Guhai hot spring in Jimsar county, Xinjiang province, north-west China. Each cell of strain GU51T consisted of an oval body and two symmetrical long (3–6 µm) prosthecae. The strain moved by polar flagellum. Oxidase and catalase were produced. Strain GU51T grew within the ranges of 37–65 °C (optimum 48–50 °C), 0.5–7.5 % (w/v) NaCl (optimum 2–3 %) and pH 6.0–9.0 (optimum pH 7.5). The major respiratory quinone detected was ubiquinone 10 (U-10) and the genomic DNA G+C content was 66.7±0.4 mol%. Major fatty acids (>5 %) were C16 : 0, C18 : 1ω7c and 11-methyl C18 : 1ω7c. The polar lipids consisted of diphosphatidylglycerol, five glycolipids, phosphatidylglycerol and an unknown phospholipid. Phylogenetic analysis showed the closest relatives of strain GU51T were members of the genus Parvularcula with 92.3 % 16S rRNA gene sequence similarity. On the basis of this polyphasic taxonomic characterization, it is suggested that strain GU51T represents a novel species of a new genus in the family ‘ Parvularculaceae ’, for which the name Amphiplicatus metriothermophilus gen. nov., sp. nov. is proposed. The type strain of the type species is GU51T ( = CGMCC 1.12710T = JCM 19779T).


2020 ◽  
Vol 70 (8) ◽  
pp. 4562-4568 ◽  
Author(s):  
Thidarat Janthra ◽  
Jihye Baek ◽  
Jong-Hwa Kim ◽  
Jung-Hoon Yoon ◽  
Ampaitip Sukhoom ◽  
...  

A Gram-stain-negative, yellow-pigmented, non-spore-forming, non-motile, rod-shaped, catalase-positive, strictly aerobic bacterial strain, designated CAU 1491T, was isolated from seawater and its taxonomic position was examined using a polyphasic approach. Cells of strain CAU 1491T grew optimally at 30 °C, pH 7.5 and in 2.0 % (w/v) NaCl. Phylogenetic analysis based on the 16S rRNA gene sequence of CAU 1491T showed that it formed a distinct lineage within the family Flavobacteriaceae as a separate deep branch, with 97.0 % or lower sequence similarity to representatives of the genera Lacinutrix , Gaetbulibacter and Aquibacter . The major cellular fatty acids of strain CAU 1491T were iso-C15 : 0, iso-C15 : 1 G, iso-C17 : 0 3-OH and summed feature 3. The polar lipid pattern consisted of diphosphatidylglycerol, phosphatidylserine, phosphatidylethanolamine and an unidentified phospholipid. The strain contained MK-6 as the sole respiratory quinone. Genome sequencing revealed that strain CAU 1491T has a genome size of 3.13 Mbp and a G+C content of 32.4 mol%. On the basis of the phenotypic, chemotaxonomic and genomic data, strain CAU 1491T represents a new genus and species in the family Flavobacteriaceae for which the name Pontimicrobium aquaticum gen. nov., sp. nov. is proposed. The type strain of Pontimicrobium aquaticum is CAU 1491T (=KCTC 72003T=NBRC 113695T).


2015 ◽  
Vol 65 (Pt_4) ◽  
pp. 1199-1206 ◽  
Author(s):  
Ai-Hua Li ◽  
Yu-Guang Zhou

Three Gram-staining-negative, strictly aerobic, non-pigmented, non-motile, rod-shaped bacterial strains, SP32T ( = SLM-1T), SR68 ( = SLM-3) and SP95 ( = SLM-2), were isolated from two water samples of a cold-water lake in Xinjiang province, China. Growth was observed at 4–25 °C and pH 6.0–9.0, and optimum growth occurred at 18–20 °C and at pH 7.0–7.5. Phylogenetic analysis of 16S rRNA gene sequences revealed that these isolates belonged to the family Rhodobacteraceae , but formed an evolutionary lineage distinct from other species of this family with validly published names. Strain SP32T showed the highest 16S rRNA gene sequence similarity (96.7 %) to Rhodobacter veldkampii ATCC 35703T, and the similarity to members of the genera Defluviimonas , Haematobacter and Pseudorhodobacter was respectively 95.8–96.4, 96.0–96.1 and 95.3–96.1 %. The genomic DNA G+C content of strain SP32T was 67.6 mol%. The major fatty acids (>5 %) were summed feature 8 (C18 : 1ω7c/C18 : 1ω6c) and11-methyl C18 : 1ω7c. Phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylcholine, one unidentified glycolipid and one unidentified polar lipid were the main polar lipids. Ubiquinone 10 (Q-10) was the sole respiratory quinone. Strain SP32T did not produce photosynthetic pigments and did not contain the gene pufM, by which it differed from the phototrophic species of the family Rhodobacteraceae . Based on its distinct phenotypic, chemotaxonomic and phylogenetic properties, strain SP32T represents a novel species in a novel genus within the family Rhodobacteraceae , for which we propose the name Frigidibacter albus gen. nov., sp. nov. The type strain of Frigidibacter albus is strain SP32T ( = SLM-1T = CGMCC 1.13995T = NBRC 109671T).


2014 ◽  
Vol 64 (Pt_5) ◽  
pp. 1481-1487 ◽  
Author(s):  
Ren-Gang Zhang ◽  
Xu Tan ◽  
Xing-Min Zhao ◽  
Jian Deng ◽  
Jie Lv

A Gram-reaction-negative, yellow-pigmented, strictly aerobic bacterium, designated M0116T, was isolated from the sediment of the Mohe Basin in north-east China. Flexirubin-type pigments were produced. Cells were catalase- and oxidase-positive and non-gliding rods. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain M0116T was a member of the family Flavobacteriaceae and was most closely related to members of the genera Empedobacter , Wautersiella and Weeksella with 90.5–91.0 % sequence similarities. The major cellular fatty acids were iso-C15 : 0 and iso-C17 : 0 3-OH. The major respiratory quinone was MK-6 and the major polar lipid was phosphatidylethanolamine. The DNA G+C content was 38.2 mol%. Based on phenotypic, phylogenetic and genotypic data, strain M0116T is considered to represent a novel species of a new genus in the family Flavobacteriaceae , for which the name Moheibacter sediminis gen. nov., sp. nov. is proposed. The type strain is M0116T ( = CGMCC 1.12708T = JCM 19634T). Emended descriptions of Empedobacter brevis , Wautersiella falsenii and Weeksella virosa are also proposed.


2020 ◽  
Vol 70 (9) ◽  
pp. 4890-4896 ◽  
Author(s):  
Ram Hari Dahal ◽  
Dhiraj Kumar Chaudhary ◽  
Dong-Uk Kim ◽  
Jaisoo Kim

A pink-pigmented, non-motile, Gram-stain-negative, rod-shaped bacterium, designated RP-2-7T, was obtained from soil sampled at the Arctic station, Spitsbergen, Svalbard, Norway. Cells were strictly aerobic, psychrotolerant, grew optimally at 15–20 °C and hydrolysed CM-cellulose. Phylogenetic analysis based on its 16S rRNA gene sequence revealed that strain RP-2-7T formed a lineage within the family Hymenobacteraceae and clustered with members of the genus Hymenobacter . Its closest relative was Hymenobacter marinus KJ035T (97.6 % sequence similarity). The sequence similarities to other strains were ≤96.9 %. The principal respiratory quinone was MK-7 and the major polar lipids were phosphatidylethanolamine and an unidentified aminophospholipid. The predominant cellular fatty acids were summed feature 3 (C16 : 1  ω7c and/or C16 : 1  ω6c), anteiso-C15 : 0, iso-C15 : 0, C16 : 1  ω5c and summed featured 4 (iso-C17 : 1 I and/or anteiso-C17 : 1 B). The DNA G+C content was 62.8 mol%. In addition, the average nucleotide identity and in silico DNA–DNA hybridization relatedness values between strain RP-2-7T and closely related strains were lower than species demarcation thresholds. Based on the resuls of genomic, chemotaxonomic, phenotypic and phylogenetic analyses, strain RP-2-7T represents novel species in the genus Hymenobacter , for which the name Hymenobacter polaris sp. nov. is proposed. The type strain is RP-2-7T (=KACC 21670T=NBRC 114391T).


2013 ◽  
Vol 63 (Pt_2) ◽  
pp. 679-684 ◽  
Author(s):  
Sang Hyeon Jeong ◽  
Hyun Mi Jin ◽  
Jeong Myeong Kim ◽  
Che Ok Jeon

A Gram-staining-negative, dark orange, strictly aerobic bacterium, designated strain HP12T, was isolated from a tidal flat at Hampyeong in South Korea. Cells were moderately halotolerant, catalase- and oxidase-positive, non-motile rods. Growth was observed at 5–35 °C (optimum, 25 °C), at pH 6.0–8.5 (optimum, pH 7.0–7.5), and in the presence of 1–6 % (w/v) NaCl (optimum, 1–2 %). The major cellular fatty acids were summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH), iso-C17 : 0 3-OH, C15 : 0, iso-C15 : 1 G and iso-C15 : 0. The polar lipid pattern indicated the presence of phosphatidylethanolamine and two unidentified lipids. The G+C content of the genomic DNA was 37.1 mol% and the predominant respiratory quinone was menaquinone-6. Phylogenetic analysis based on 16S rRNA gene sequences showed that the novel strain formed a tight phyletic lineage with members of the genus Arenibacter and was most closely related to Arenibacter palladensis KMM 3961T, Arenibacter troitsensis KMM 3674T and Arenibacter echinorum KMM 6032T, with 16S rRNA gene sequence similarities of 98.1 %, 98.0 % and 97.8 %, respectively. However, the DNA–DNA relatedness values between strain HP12T and A. palladensis JCM 13509T, A. troitsensis KCTC 12362T and A. echinorum KCTC 22013T were only 20.2±0.3 %, 22.6±0.6 % and 9.1±2.6 %, respectively. On the basis of phenotypic and molecular features, strain HP12T represents a novel species of the genus Arenibacter , for which the name Arenibacter hampyeongensis sp. nov. is proposed. The type strain is HP12T ( = KACC 16193T = JCM 17788T).


2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 381-387 ◽  
Author(s):  
Hyun Mi Jin ◽  
Che Ok Jeon

A Gram-stain-negative, strictly aerobic bacterium, designated strain GY12T, was isolated from a tidal flat of South Korea. Cells were moderately halotolerant, catalase- and oxidase-positive rods with gliding motility, and were devoid of flagella. Growth of strain GY12T was observed at 15–40 °C (optimum 25–30 °C), pH 6.0–8.5 (optimum pH 7.0–7.5) and with 1–5 % (w/v) NaCl (optimum 1–2 %). The major cellular fatty acids were iso-C15 : 1 G, iso-C15 : 0 and iso-C15 : 0 3-OH. The polar lipids consisted almost entirely of phosphatidylethanolamine, two unidentified aminolipids and two unidentified lipids. The G+C content of the genomic DNA was 34.8 mol% and the only respiratory quinone detected was menaquinone-6 (MK-6). Strain GY12T was most closely related to the genera Gaetbulibacter , Flaviramulus , Mariniflexile and Tamlana with 16S rRNA gene sequence similarities of 94–97 %, but phylogenetic inferences based on 16S rRNA gene sequences showed that the strain formed phyletic lineages distinct from these genera within the family Flavobacteriaceae . On the basis of phenotypic and molecular features, strain GY12T represents a novel species of a new genus in the family Flavobacteriaceae , for which the name Litoribaculum gwangyangense gen. nov., sp. nov. is proposed. The type strain of the type species is GY12T ( = KACC 16441T = JCM 18325T).


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