scholarly journals Pelagihabitans pacificus gen. nov., sp. nov., a member of the family Flavobacteriaceae isolated from a deep-sea seamount

2020 ◽  
Vol 70 (8) ◽  
pp. 4569-4575 ◽  
Author(s):  
Qian Wang ◽  
Feng Liu ◽  
De-Chao Zhang

The Gram-stain-negative, orange-pigmented, non-spore-forming, non-motile, strictly aerobic, rod-shaped bacterial strain, designated TP-CH-4T, was isolated from a seamount near the Yap Trench in the tropical western Pacific. The optimal growth conditions were determined to be at pH 7–8, 25–30 °C and in the presence of 2 % (w/v) NaCl. The major respiratory quinone was MK-6. The polar lipid profile contained phosphatidylethanolamine, two unidentified aminolipids, two unidentified phospholipids and three unidentified polar lipids. The predominant cellular fatty acids were iso-C15 : 0 and summed feature 1 (composed of C13 : 03-OH and/or iso-C15 : 1H). Phylogenetic analysis of 16S rRNA gene sequences revealed that strain TP-CH-4T was a member of the family Flavobacteriaceae and formed a distinct lineage. Strain TP-CH-4T displayed highest sequence similarities to Pseudozobellia thermophila KMM 3531T (95.1 %) and Flagellimonas flava A11T (93.9 %). Genome sequencing revealed the strain TP-CH-4T has a genome size of 4.5 Mbp and a G+C content of 44.5 mol%. Collectively, based on phenotypic, chemotaxonomic, phylogenetic and genomic evidence, strain TP-CH-4T represents a novel species of a novel genus of the family Flavobacteriaceae , for which the name Pelagihabitans pacificus gen. nov., sp. nov. is proposed. The type strain of Pelagihabitans pacificus is TP-CH-4T (=CGMCC 1.17120T=KCTC 72434T).

2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 134-140 ◽  
Author(s):  
Wen-Ming Chen ◽  
Shwu-Harn Yang ◽  
Chiu-Chung Young ◽  
Shih-Yi Sheu

A bacterial strain, designated NSW-5T, was isolated from a water sample taken from Niao-Song Wetland Park in Taiwan and characterized using a polyphasic taxonomic approach. Cells of strain NSW-5T were strictly aerobic, Gram-stain-negative, non-motile and polymorphic, being straight, vibrioid, curved and spiral-shaped rods surrounded by a thick capsule and forming light pink-coloured colonies. Some rings consisting of several cells were present. Growth occurred at 10–40 °C (optimum, 25 °C), with 0–3.0 % NaCl (optimum, 0 %) and at pH 6.0–8.0 (optimum, pH 7.0). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain NSW-5T belonged to the genus Arcicella with sequence similarities of 98.6, 98.0 and 97.3 % with Arcicella aquatica NO-502T, Arcicella rosea TW5T and Arcicella aurantiaca TNR-18T, respectively. The predominant cellular fatty acids were summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c; 20.8 %), C16 : 0 (14.6 %), iso-C15 : 0 (13.8 %), C16 : 1ω5c (12.5 %) and C18 : 0 (11.4 %), and the only respiratory quinone was MK-7. The polar lipid profile consisted of phosphatidylethanolamine and several uncharacterized glycolipids, aminolipids, phospholipids and aminophospholipids. The DNA G+C content of strain NSW-5T was 44.1 mol%. The DNA–DNA relatedness of strain NSW-5T with respect to recognized species of the genus Arcicella was less than 70 %. On the basis of phylogenetic inference and phenotypic data, strain NSW-5T should be classified as a representative of a novel species, for which the name Arcicella rigui sp. nov. is proposed. The type strain is NSW-5T ( = KCTC 23307T = BCRC 80260T). Emended descriptions of the genus Arcicella and of Arcicella aquatica , Arcicella rosea and Arcicella aurantiaca are also proposed.


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_9) ◽  
pp. 3040-3045 ◽  
Author(s):  
Soo-Jin Kim ◽  
Joo-Hyeon Park ◽  
Jun-Muk Lim ◽  
Jae-Hyung Ahn ◽  
Rangasamy Anandham ◽  
...  

A Gram-stain-negative, short rod-shaped, non-flagellated, yellow bacterium, designated strain 5GHs7-2T, was isolated from a greenhouse soil sample in South Korea. 16S rRNA gene sequence analysis of strain 5GHs7-2T indicated that the isolate belonged to the family Chitinophagaceae , and exhibited the highest sequence similarities with members of the genera Terrimonas (89.2–92.6 %), Sediminibacterium (90.8–91.4 %) and Chitinophaga (89.2–91.7 %), Filimonas lacunae YT21T (91.7 %), members of the genus Segetibacter (90.2–91.6 %), Parasegetibacter luojiensis RHYL-37T (90.9 %) and Flavihumibacter petaseus T41T (91.2 %). Flexirubin-type pigments were present. The major cellular fatty acids of the novel strain were iso-C15 : 0, iso-C17 : 0 3-OH and iso-C15 : 1 G. The polar lipid profile consisted of a large amount of phosphatidylethanolamine, and moderate and small amounts of several unknown aminolipids and lipids. The only respiratory quinone of strain 5GHs7-2T was MK-7, and the DNA G+C content was 47.6 mol%. On the basis of the evidence presented, it is concluded that strain 5GHs7-2T represents a novel species of a new genus in the family Chitinophagaceae , for which the name Parafilimonas terrae gen. nov., sp. nov. is proposed. The type strain of the type species is 5GHs7-2T ( = KACC 17343T = DSM 28286T).


2014 ◽  
Vol 64 (Pt_3) ◽  
pp. 700-704 ◽  
Author(s):  
Hong-Xing Yang ◽  
Xiang Wang ◽  
Xiao-Wei Liu ◽  
Jun Zhang ◽  
Gui-Qin Yang ◽  
...  

A Gram-negative, strictly aerobic, yellow–orange-pigmented, motile, short rod-shaped, catalase-positive, oxidase-negative bacterium, strain MYL-8T, was isolated from wastewater of the Jin Tai Chemical Factory in Hefei, China. Strain MYL-8T grew optimally at 30 °C, in the absence of NaCl and at pH 7. Menaquinone 6 (MK-6) was the sole respiratory quinone and the major fatty acids were iso-C15 : 0, iso-C15 : 1 G, iso-C17 : 0 3-OH and summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH). The polar lipid profile was composed predominantly of unidentified polar lipids and aminolipids. Minor amounts of phosphatidylethanolamine and unidentified phospholipids were also detectable. The DNA G+C content of strain MYL-8T was 43.5 mol%. The 16S rRNA gene sequence of strain MYL-8T showed the highest similarity to that of Fluviicola taffensis RW 262T (97.03 %), followed by Wandonia haliotis Haldis-1-1T (92.05 %), Lishizhenia caseinilytica UST040201-001T (91.43 %) and Lishizhenia tianjinensis JCM 15141T (90.61 %). DNA–DNA relatedness between strain MYL-8T and F. taffensis RW 262T was 21.35±0.90 %. On the basis of phenotypic, chemotaxonomic, genomic and phylogenetic data, strain MYL-8T is considered to represent a novel species of the genus Fluviicola , for which the name Fluviicola hefeinensis sp. nov. is proposed. The type strain is MYL-8T ( = KACC 16597T = CCTCC AB 2013168T).


2014 ◽  
Vol 64 (Pt_2) ◽  
pp. 533-539 ◽  
Author(s):  
Asif Hameed ◽  
Mariyam Shahina ◽  
Shih-Yao Lin ◽  
Wei-An Lai ◽  
You-Cheng Liu ◽  
...  

A Gram-staining-negative, orange-pigmented, strictly aerobic, carotenoid-producing, rod-shaped, non-flagellated, non-spore-forming bacterium, motile by gliding, designated strain CC-AMO-30DT, was isolated from surface seawater collected near Taichung harbour, Taiwan. Strain CC-AMO-30DT shared pairwise 16S rRNA gene sequence similarities of 94.8, 93.7 and 92.5 % with the type strains of the type species of the genera Joostella , Pustulibacterium and Galbibacter , respectively, and formed a distinct monophyletic lineage in phylogenetic trees. The major fatty acids (≥5 % of total) were iso-C15 : 1 G, iso-C15 : 0, iso-C17 : 0 3-OH, iso-C15 : 0 3-OH, iso-C16 : 0 and anteiso-C15 : 0. The polar lipid profile consisted of phosphatidylethanolamine, four unidentified lipids, two unidentified aminolipids and an unidentified phospholipid. The major polyamine was the triamine sym-homospermidine. The DNA G+C content was 47.1 mol% and the predominant respiratory quinone was menaquinone-6 (MK-6). Based on the phylogenetic distinctiveness and distinguishing phenotypic characteristics, strain CC-AMO-30DT represents a novel genus and species of the family Flavobacteriaceae , for which the name Robertkochia marina gen. nov., sp. nov. is proposed; the type strain of the type species Robertkochia marina is CC-AMO-30DT ( = JCM 18552T = BCRC 80469T). Emended descriptions of the genera Joostella and Galbibacter are also proposed.


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).


2020 ◽  
Vol 70 (6) ◽  
pp. 3606-3613 ◽  
Author(s):  
Zixiao Xu ◽  
Yuxiao Zhang ◽  
Yasir Muhammad ◽  
Gejiao Wang

A soil bacterium, designated ZX9611T, was isolated from Taihang Mountain in Henan province, PR China. The strain was Gram-stain-negative and strictly aerobic. The cells were motile, rod-shaped and formed light pink-colored colonies. The 16S rRNA gene sequence of ZX9611T shared the highest similarities with those of Sphingomonas crocodyli CCP-7T (97.0%), Sphingomonas jatrophae S5-249T (96.6%) and Sphingomonas starnbergensis 382T (95.9%). Phylogenetic analyses based on 16S rRNA gene sequences demonstrated that ZX9611T clustered with S. crocodyli CCP-7T, S. jatrophae S5-249T and S. starnbergensis 382T. The average nucleotide identity (ANI) values between ZX9611T and two type strains ( S. crocodyli BCRC 81096T and S. jatrophae DSM 27345T) were 88.3 and 68.6% respectively. ZX9611T exhibited genome-sequence-based digital DNA–DNA hybridization (dDDH) values of 53.3 % and 15.3 %, compared with S. crocodyli BCRC 81096T and S . jatrophae DSM 27345T, respectively. ZX9611T had a genome size of 4.12 Mb and an average DNA G+C content of 64.8 %. ZX9611T had major fatty acids (>5 %) including summed feature 8 (C18 : 1  ω7c and/or C18 : 1  ω6c), C14 : 0 2-OH, C16 : 0 and summed feature 3 (C16 : 1  ω7c and/or C16 : 1  ω6c), and the major polyamine was sym-homospermidine. The only respiratory quinone was ubiquinone-10. The polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine and sphingoglycolipid. On the basis of phenotypic, chemotaxonomic and phylogenetic characteristics, strain ZX9611T represents a novel species of genus Sphingomonas, for which the name Sphingomonas montanisoli sp. nov. is proposed. The type strain is ZX9611T (=KCTC 72622T=CCTCC AB 2019350T).


2014 ◽  
Vol 64 (Pt_2) ◽  
pp. 400-405 ◽  
Author(s):  
Yong Min Kwon ◽  
Sung-Hyun Yang ◽  
Kae Kyoung Kwon ◽  
Sang-Jin Kim

A Gram-negative, proteorhodopsin-containing, orange pigmented, rod-shaped and strictly aerobic bacterium, designated strain AKS622T, was isolated from a glacier core collected from the coast of King George Island, Antarctica. 16S rRNA gene sequence analysis revealed that strain AKS622T was affiliated to the genus Nonlabens of the family Flavobacteriaceae and showed highest similarity to Nonlabens marinus S1-08T (97.9 %). The level of DNA–DNA relatedness between strain AKS622T and N. marinus S1-08T was 46 %. Optimal growth of strain AKS622T was observed at pH 7.0, at 15 °C and with 2.0 % NaCl. The predominant cellular fatty acids were anteiso-C15 : 0, iso-C16 : 0, iso-C16 : 0 3-OH, C17 : 0 2-OH and summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c). The DNA G+C content was 37.9 mol%. The major respiratory quinone was MK-6. Phosphatidylethanolamine, four unidentified glycolipids, three unidentified aminolipids and one unidentified lipid were detected as major polar lipids. On the basis of the data from this polyphasic taxonomic study, it was concluded that strain AKS622T represents a novel species within the genus Nonlabens , for which the name Nonlabens antarcticus sp. nov. is proposed. The type strain is AKS622T ( = KCCM 43019T = JCM 14068T). Emended descriptions of N. marinus Park et al. 2012 and Nonlabens agnitus Yi and Chun 2012 are given.


2014 ◽  
Vol 64 (Pt_1) ◽  
pp. 78-82 ◽  
Author(s):  
Taeyang Kwon ◽  
Kiwoon Baek ◽  
Kiyoung Lee ◽  
Ilnam Kang ◽  
Jang-Cheon Cho

A Gram-staining-negative, chemoheterotrophic, yellow-pigmented, gliding, catalase- and oxidase-positive, flexirubin-negative, strictly aerobic bacterium, designated strain IMCC9485T, was isolated from a seawater sample collected from the Arctic Ocean. Optimal growth of strain IMCC9485T was observed at 25 °C, pH 7–8 and in the presence of 1.5–2.5 % NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain IMCC9485T belonged to the genus Formosa and was closely related to Formosa algae KCTC 12364T (98.2 %) and Formosa agariphila KCTC 12365T (98.0 %). DNA–DNA relatedness between the new isolate and F. algae and F. agariphila was far lower than 70 %, which indicated that strain IMCC9485T is a novel genomic species of the genus Formosa . The major fatty acids (>10 %) were iso-C15 : 1G (13.7 %), C16 : 1ω7c and/or C16 : 1ω6c (13.4 %) and iso-C15 : 0 (12.3 %). The G+C content of the genomic DNA was 37.6 mol%. Strain IMCC9485T contained menaquinone-6 (MK-6) as the respiratory quinone and phosphatidylethanolamine, unknown aminophospholipids and unknown polar lipids as polar lipid constituents. On the basis of phylogenetic analyses and differential phenotypic characteristics, it is suggested that strain IMCC9485T ( = KACC 17484T = KCCM 42937T = NBRC 106080T) be assigned to the genus Formosa as the type strain of a novel species, for which the name Formosa arctica sp. nov. is proposed.


2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 1991-1997 ◽  
Author(s):  
Zenghu Zhang ◽  
Tong Yu ◽  
Tingting Xu ◽  
Xiao-Hua Zhang

A Gram-stain-negative, rod-shaped, non-flagellated, strictly aerobic bacterium with gliding motility, designated strain SW150T, was isolated from surface seawater of the South Pacific Gyre (39° 19′ S 139° 48′ W) during the Integrated Ocean Drilling Program Expedition 329. Optimal growth occurred in the presence of 2–4 % (w/v) NaCl, at pH 7–8 and at 28–30 °C. The dominant fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH, iso-C15 : 1 G, C16 : 1ω6c and/or C16 : 1ω7c and 10-methyl C16 : 0 and/or iso-C17 : 1ω9c. The polar lipids of strain SW150T comprised phosphatidylethanolamine, three unknown polar lipids and one unknown aminolipid. The major respiratory quinone was MK-6. The DNA G+C content of strain SW150T was 33.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that the novel strain was related most closely to Aquimarina macrocephali JAMB N27T and Aquimarina muelleri KMM 6020T with 97.8 and 96.8 % sequence similarities, respectively. The estimated DNA–DNA hybridization values were 21.00±2.33 % between strain SW150T and A. macrocephali JAMB N27T and 20.60±2.32 % between strain SW150T and Aquimarina megaterium XH134T. On the basis of polyphasic analyses, strain SW150T represents a novel species of the genus Aquimarina , for which the name Aquimarina pacifica sp. nov. is proposed. The type strain is SW150T ( = JCM 18214T = CGMCC 1.12180T).


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