Euzebya pacifica sp. nov., a novel member of the class Nitriliruptoria

Author(s):  
Shu-Ling Jian ◽  
Lin Xu ◽  
Fan-Xu Meng ◽  
Cong Sun ◽  
Xue-Wei Xu

A Gram-stain-positive, aerobic, chemo-organotrophic, rod-shaped, non-spore-forming strain, which produced convex, circular, pink-pigmented colonies, designated as DY32-46T, was isolated from seawater collected from the Pacific Ocean. DY32-46T was found to grow at 20–40 °C (optimum, 30–35 °C), pH 6.0–8.0 (optimum, pH 6.5) and with 0–5 % (w/v) NaCl (optimum, 1–2 %). The results of chemotaxonomic analysis indicated that the respiratory quinone of DY32-46T was MK-9(H4), and major fatty acids (>10 %) were C17 : 1 ω8c, summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c), C16 : 0 and C15 : 1 ω6c. The polar lipids included diphosphatidylglycerol, phosphatidylglycerol, one unidentified aminophospholipid, three unidentified glycolipids, three unidentified phospholipids, one unidentified phosphoglycolipid and five unidentified lipids. The DNA G+C content of DY32-46T was 70.6 mol%. The results of phylogenetic analysis based on 16S rRNA gene sequences and genomic data indicated that DY32-46T should be assigned to the genus Euzebya . ANI and in silico DNA–DNA hybridization values between strain DY32-46T and type strains of Euzebya species were 73.1–87.2 % and 20.2–32.4 %, respectively. Different phenotypic properties, together with genetic distinctiveness, demonstrated that strain DY32-46T was clearly distinct from recognized species of the genus Euzebya . Therefore, DY32-46T represents a novel species within the genus Euzebya , for which the name Euzebya pacifica sp. nov is proposed. The type strain is DY32-46T (=MCCC 1K03476T=KCTC 49091T).

2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 141-145 ◽  
Author(s):  
John A. O’Halloran ◽  
Teresa M. Barbosa ◽  
John P. Morrissey ◽  
Jonathan Kennedy ◽  
Alan D. W. Dobson ◽  
...  

A Gram-negative, motile, rod-shaped bacterial strain, designated Ad2T, was isolated from a marine sponge, Axinella dissimilis, which was collected from a semi-enclosed marine lake in Ireland. Strain Ad2T grew optimally at 24 °C, at pH 7.0 and in the presence of 3 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain Ad2T clustered with members of the genus Pseudovibrio , and showed 97.3–98.2 % sequence similarity to the type strains of recognized Pseudovibrio species. DNA–DNA relatedness values between strain Ad2T and the type strains of other Pseudovibrio species were <27 %. The DNA G+C content of strain Ad2T was 50.5 mol%. The major fatty acid was 18 : 1ω7c. Differences in phenotypic properties, together with phylogenetic and DNA–DNA hybridization analyses, indicated that strain Ad2T represented a novel species of the genus Pseudovibrio . The name Pseudovibrio axinellae sp. nov. is proposed, with Ad2T ( = DSM 24994T = NCIMB 14761T) as the type strain.


2013 ◽  
Vol 63 (Pt_4) ◽  
pp. 1335-1341 ◽  
Author(s):  
Sang Hyeon Jeong ◽  
Sung-Hyun Yang ◽  
Hyun Mi Jin ◽  
Jeong Myeong Kim ◽  
Kae Kyoung Kwon ◽  
...  

Two novel Gram-stain-negative, chemoheterotrophic and strictly aerobic bacteria, strains GY2T and SPO729T, were isolated from a tidal flat at Gwangyang Bay in Korea and a marine sponge sample from the Pacific Ocean, respectively. The two strains were halotolerant, catalase- and oxidase-positive, and non-motile rods. Optimum temperature and pH for growth of both strains were observed to be 35 °C and pH 7.0–7.5, but optimum salinity for strain SPO729T [2–3 % (w/v)] was slightly higher than that for strain GY2T (1–2 %). The major cellular fatty acids of both strains were C16 : 0, iso-C15 : 0, iso-C17 : 0, iso-C17 : 1ω9c, C18 : 1ω7c, iso-C11 : 0 and iso-C11 : 0 3-OH. The genomic DNA G+C contents of strains GY2T and SPO729T were 55.1 and 57.9 mol%, respectively, and ubiquinone 8 (Q-8) was detected as the sole respiratory quinone from the two strains. Phylogenetic analysis based on 16S rRNA gene sequences showed that strains GY2T and SPO729T formed tight phyletic lineages with members of the genus Microbulbifer . Strain GY2T was closely related to Microbulbifer okinawensis ABABA23T (98.2 %), strain SPO729T (98.0 %) and Microbulbifer donghaiensis CN85T (97.0 %); strain SPO729T was closely related to M. okinawensis ABABA23T (98.3 %) and M. donghaiensis CN85T (98.2 %). The DNA–DNA relatedness values of strain GY2T with M. okinawensis ABABA23T, strain SPO729T and M. donghaiensis CN85T were 40.0±2.1 %, 13.1±3.9 % and 16.2±5.8 %, respectively, whereas those of strain SPO729T with M. okinawensis ABABA23T and M. donghaiensis CN85T were 48.0±4.0 % and 34.6±9.3 %, respectively. On the basis of phenotypic and molecular features, it is concluded that the two strains GY2T and SPO729T represent two novel species of the genus Microbulbifer , for which the names Microbulbifer gwangyangensis sp. nov. and Microbulbifer pacificus are proposed; the type strains are GY2T ( = KACC 16189T = JCM 17800T) and SPO729T ( = KCCM 42667T = JCM 14507T), respectively.


2013 ◽  
Vol 63 (Pt_8) ◽  
pp. 3024-3029 ◽  
Author(s):  
Luchao Han ◽  
Guiqin Yang ◽  
Xuemei Zhou ◽  
Dehui Yang ◽  
Pei Hu ◽  
...  

A Gram-reaction-positive, facultatively anaerobic, motile, endospore-forming, rod-shaped strain, designated SgZ-7T, was isolated from a windrow compost pile and was characterized by means of a polyphasic approach. Growth occurred with 0–3 % (w/v) NaCl (optimum 1 %), at pH 6.0–10.0 (optimum pH 7.2) and at 40–60 °C (optimum 50 °C). The main respiratory quinone was MK-7. The predominant polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. The major fatty acids were iso-C15 : 0 and anteiso-C15 : 0. The DNA G+C content was 46.6 mol%. The phylogenetic analysis based on 16S rRNA gene sequence comparisons revealed that strain SgZ-7T should be assigned to the genus Bacillus and was related most closely to Bacillus drentensis LMG 21831T (sequence similarity 97.2 %). The result of the DNA–DNA hybridization experiment revealed a low relatedness (27.2 %) between the isolate and B. drentensis LMG 21831T. The results of phenotypic, chemotaxonomic and genotypic analyses clearly indicated that strain SgZ-7T represents a novel species, for which the name Bacillus thermocopriae sp. nov. is proposed. The type strain is SgZ-7T ( = CCTCC AB 2012030T = KACC 16700T).


2012 ◽  
Vol 62 (Pt_4) ◽  
pp. 817-821 ◽  
Author(s):  
Fan Jiang ◽  
Jun Dai ◽  
Yang Wang ◽  
Xiuqing Xue ◽  
Mengbo Xu ◽  
...  

A psychrotolerant Gram-reaction-negative, rod-shaped and orange-pigmented bacterium, designated strain M9-62T, which was motile by means of peritrichous flagella, was isolated from tundra soil sampled near Ny-Ålesund, Svalbard Islands, Norway (78° N). Growth occurred at 4–30 °C (optimum, 25 °C) and pH 5.0–8.0 (optimum, pH 6.0–7.0). Analysis of the 16S rRNA gene sequence of strain M9-62T placed it in the genus Cohnella ; sequence similarities of the isolate with type strains of members of related genera ranged from 92.0 to 96.3 %. Strain M9-62T contained anteiso-C15 : 0 (51.1 %), iso-C16 : 0 (7.5 %) and C16 : 0 (6.1 %) as the major cellular fatty acids and diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and lysyl-phosphatidylglycerol as the main polar lipids. The major respiratory quinone was MK-7 and the DNA G+C content was 50.3 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain M9-62T is considered to represent a novel species of the genus Cohnella , for which the name Cohnella arctica sp. nov. is proposed; the type strain is M9-62T ( = CCTCC AB 2010228T = NRRL B-59459T).


2020 ◽  
Vol 70 (6) ◽  
pp. 3859-3864 ◽  
Author(s):  
Xian-Jiao Zhang ◽  
Guang-Da Feng ◽  
Qing Yao ◽  
Jun Zhang ◽  
Le Thi Bich Phuong ◽  
...  

A novel bacterial strain, designated ysch24T, was isolated from a forest soil sample collected from the Cat Tien National Park, southern Vietnam. Cells were Gram-stain-negative, aerobic, gliding, filamentous or rod-shaped. The results of 16S rRNA gene analyses revealed that strain ysch24T belongs to the genus Chitinophaga , and was most closely related to Chitinophaga silvisoli GDMCC 1.1411T (97.4 %), followed by Chitinophaga oryziterrae JCM 16595T (97.3 %) and Chitinophaga sancti NBRC 15057T (96.9 %). The average nucleotide identity and digital DNA–DNA hybridization values between strain ysch24T and closely related type strains were 72.0–74.0 % and 19.1–19.4 %, respectively. Major fatty acids were iso-C15 : 0, C16 : 1  ω5c and iso-C17 : 0 3-OH and the predominant respiratory quinone was menaquinone 7. Polar lipids consisted of phosphatidylethanolamine, four unidentified aminophospholipids, two unidentified phospholipids and four unidentified lipids. The genomic DNA G+C content was 45.6 mol%. The study clearly showed that strain ysch24T should represent a novel species of the genus Chitinophaga , for which the name Chitinophaga tropicalis sp. nov. is proposed. The type strain is ysch24T (=GDMCC 1.1355T=KACC 21527T).


Author(s):  
Yu-feng Chen ◽  
Lin Ye ◽  
Hui-qin Huang ◽  
Ming-guo Jiang ◽  
Yong-hua Hu ◽  
...  

A Gram-stain-positive and motile bacterial strain, designated IB182363T, was isolated from surface seawater of the South China Sea. Cells grew at pH 5.0–9.5 (optimum, pH 7.0–8.0), 20–40 °C (optimum, 30 °C) and with 1–8 % (w/v) NaCl (optimum, 2–4 %). On the basis of 16S rRNA gene sequence analysis, strain IB182363T was affiliated to the genus Paenibacillus and the closest phylogenetically related species was Paenibacillus ginsengarvi DSM18677T with 96.9 % sequence similarity. The values of whole genome average nucleotide identity analysis and digital DNA–DNA hybridization between the isolate and the closely related type strains were less than 86.3 and 25.6 %, respectively. Chemotaxonomic analysis revealed that strain IB182363T possessed meso-diaminopimelic acid in the cell-wall peptidoglycan and contained menaquinone MK-7 as the predominant isoprenoid quinone. The major cellular fatty acids were anteiso-C15 : 0, C16 : 0 and iso-C16 : 0. The polar lipids comprised phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, one unidentified glycolipid, two unidentified aminolipids, two unidentified phospholipids and four unidentified aminophospholipids. The genomic DNA G+C content was 54.5 mol%. On the basis of the above results, strain IB182363T represents a novel species of the genus Paenibacillus , for which we propose the name Paenibacillus oceani sp. nov. with the type strain IB182363T (=MCCC 1K04630T=JCM 34214T).


2014 ◽  
Vol 64 (Pt_12) ◽  
pp. 4068-4072 ◽  
Author(s):  
Young-Ok Kim ◽  
Sooyeon Park ◽  
Doo Nam Kim ◽  
Bo-Hye Nam ◽  
Sung-Min Won ◽  
...  

A Gram-stain-negative, aerobic, non-spore-forming, non-flagellated and rod-shaped or ovoid bacterial strain, designated RA1T, was isolated from faeces collected from Beluga whale (Delphinapterus leucas) in Yeosu aquarium, South Korea. Strain RA1T grew optimally at 25 °C, at pH 7.0–8.0 and in the presence of 2.0 % (w/v) NaCl. Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences revealed that strain RA1T joins the cluster comprising the type strains of three species of the genus Amphritea , with which it exhibited 95.8–96.0 % sequence similarity. Sequence similarities to the type strains of other recognized species were less than 94.3 %. Strain RA1T contained Q-8 as the predominant ubiquinone and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c), C18 : 1ω7c and C16 : 0 as the major fatty acids. The major polar lipids of strain RA1T were phosphatidylethanolamine, phosphatidylglycerol, two unidentified lipids and one unidentified aminolipid. The DNA G+C content of strain RA1T was 47.4 mol%. The differential phenotypic properties, together with the phylogenetic distinctiveness, revealed that strain RA1T is separated from other species of the genus Amphritea . On the basis of the data presented, strain RA1T is considered to represent a novel species of the genus Amphritea , for which the name Amphritea ceti sp. nov. is proposed. The type strain is RA1T ( = KCTC 42154T = NBRC 110551T).


2012 ◽  
Vol 62 (Pt_9) ◽  
pp. 2133-2139 ◽  
Author(s):  
S. Shivaji ◽  
P. Vishnu Vardhan Reddy ◽  
S. S. S. Nageshwara Rao ◽  
Zareena Begum ◽  
Poorna Manasa ◽  
...  

A novel Gram-stain-negative, horseshoe-shaped, non-motile bacterium, designated strain M12-11BT, was isolated from a marine sediment sample collected at a depth of 200 m from Kongsfjorden, Svalbard. The colony colour was orangish red due to the presence of carotenoids. Fatty acids were dominated by branched and unsaturated fatty acids (90.8 %), with a high abundance of iso-C15 : 0 (14.9 %), anteiso-C15 : 0 (11.4 %), iso-C15 : 1 G (13.1 %), C15 : 1ω6c (5.4 %), C17 : 1ω6c (6.7 %), summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c; 9.3 %) and summed feature 9 (10-methyl C16 : 0 and/or iso-C17 : 1ω9c; 5.9 %). Strain M12-11BT contained MK-7 as the major respiratory quinone. The polar lipids consisted of phosphatidylcholine, phosphatidylethanolamine, one unidentified aminolipid and three unidentified lipids. Based on 16S rRNA gene sequence similarities, the type strains of Cyclobacterium amurskyense , Cyclobacterium marinum and Cyclobacterium lianum were most closely related to M12-11BT with sequence similarities of 98.2, 96.8 and 93.3 %, respectively. Other members of the family Cyclobacteriaceae had sequence similarities of <92.0 %. However, DNA–DNA hybridization with Cyclobacterium amurskyense KCTC 12363T and Cyclobacterium marinum DSM 745T showed relatedness values of only 24.5 and 32.5 % with respect to strain M12-11BT. Based on the results of DNA–DNA hybridization experiments and phenotypic and chemotaxonomic data, it appears that strain M12-11BT represents a novel species of the genus Cyclobacterium , for which the name Cyclobacterium qasimii sp. nov. is proposed; the type strain is M12-11BT ( = KCTC 23011T = NBRC 106168T) and it has a DNA G+C content of 40.5 mol%.


2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 418-423 ◽  
Author(s):  
Shan Gao ◽  
Wen-Bin Zhang ◽  
Xia-Fang Sheng ◽  
Lin-Yan He ◽  
Zhi Huang

A Gram-stain-negative, aerobic, yellow-pigmented, non-motile, non-spore-forming, rod-shaped bacterial strain, Z29T, was isolated from the surface of weathered rock (potassic trachyte) from Nanjing, Jiangsu Province, PR China. Phylogenetic analysis based on 16S rRNA gene sequences suggested that strain Z29T belongs to the genus Chitinophaga in the family Chitinophagaceae . Levels of 16S rRNA gene sequence similarity between strain Z29T and the type strains of recognized species of the genus Chitinophaga ranged from 92.7 to 98.2 %. The main fatty acids of strain Z29T were iso-C15 : 0, C16 : 1ω5c and iso-C17 : 0 3-OH. It also contained menaquinone 7 (MK-7) as the respiratory quinone and homospermidine as the main polyamine. The polar lipid profile contained phosphatidylethanolamine, unknown aminolipids, unknown phospholipids and unknown lipids. The total DNA G+C content of strain Z29T was 51.3 mol%. Phenotypic properties and chemotaxonomic data supported the affiliation of strain Z29T with the genus Chitinophaga . The low level of DNA–DNA relatedness (ranging from 14.6 to 29.8 %) to the type strains of other species of the genus Chitinophaga and differential phenotypic properties demonstrated that strain Z29T represents a novel species of the genus Chitinophaga , for which the name Chitinophaga longshanensis sp. nov. is proposed. The type strain is Z29T ( = CCTCC AB 2014066T = LMG 28237T).


2015 ◽  
Vol 65 (Pt_1) ◽  
pp. 189-194 ◽  
Author(s):  
Antje Rusch ◽  
Shaer Islam ◽  
Pratixa Savalia ◽  
Jan P. Amend

Enrichment cultures inoculated with hydrothermally influenced nearshore sediment from Papua New Guinea led to the isolation of an arsenic-tolerant, acidophilic, facultatively aerobic bacterial strain designated PNG-AprilT. Cells of this strain were Gram-stain-negative, rod-shaped, motile and did not form spores. Strain PNG-AprilT grew at temperatures between 4 °C and 40 °C (optimum 30–37 °C), at pH 3.5 to 8.3 (optimum pH 5–6) and in the presence of up to 2.7 % NaCl (optimum 0–1.0 %). Both arsenate and arsenite were tolerated up to concentrations of at least 0.5 mM. Metabolism in strain PNG-AprilT was strictly respiratory. Heterotrophic growth occurred with O2 or nitrate as electron acceptors, and aerobic lithoautotrophic growth was observed with thiosulfate or nitrite as electron donors. The novel isolate was capable of N2-fixation. The respiratory quinones were Q-8 and Q-7. Phylogenetically, strain PNG-AprilT belongs to the genus Burkholderia and shares the highest 16S rRNA gene sequence similarity with the type strains of Burkholderia fungorum (99.8 %), Burkholderia phytofirmans (98.8 %), Burkholderia caledonica (98.4 %) and Burkholderia sediminicola (98.4 %). Differences from these related species in several physiological characteristics (lipid composition, carbohydrate utilization, enzyme profiles) and DNA–DNA hybridization suggested the isolate represents a novel species of the genus Burkholderia , for which we propose the name Burkholderia insulsa sp. nov. The type strain is PNG-AprilT ( = DSM 28142T = LMG 28183T).


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