scholarly journals Novosphingobium silvae sp. nov., isolated from subtropical forest soil

2020 ◽  
Vol 70 (4) ◽  
pp. 2901-2906 ◽  
Author(s):  
Guang-Da Feng ◽  
Wendi Chen ◽  
Jun Zhang ◽  
Yong-Hong Wang ◽  
Yang Liu ◽  
...  

A novel bacterial strain, designated FGD1T, was isolated from subtropical forest soil of the Nanling National Forest Park located in Guangdong Province, P.R. China. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain FGD1T was most closely related to Novosphingobium lindaniclasticum DSM 25049T (98.8 %), followed by N. barchaimii DSM 25411T (98.7 %), N. guangzhouense DSM 32207T (98.2 %), N. panipatense DSM 22890T (98.1 %) and other species of Novosphingobium (<98 %). The draft genome sequence was 4.58 Mb in length with a G+C content of 65.1 mol%. The calculated average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) values between strain FGD1T and closely related type strains were 77.7‒79.6 % and 21.7–22.9 %, respectively. Major fatty acids were summed feature 8 (C18 : 1  ω7c and/or C18 : 1  ω6c), summed feature 3 (C16 : 1  ω7c and/or C16 : 1  ω6c), C14 : 0 2-OH and C16 : 0. The predominant respiratory quinone was ubiquinone 10 and the major polyamine was spermidine. Polar lipids were composed of sphingoglycolipid, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylmethylethanolamine, diphosphatidylglycerol, an unidentified phospholipid and lipid. The polyphasic taxonomic results indicated that strain FGD1T represents a novel species of the genus Novosphingobium , for which the name Novosphingobium silvae sp. nov. is proposed. The type strain is FGD1T (=GDMCC 1.1761T=KACC 21283T).

Author(s):  
Yuxin Yao ◽  
Xinhua Zhong ◽  
Huixian Li ◽  
Weilin Fan ◽  
Qi Xiang ◽  
...  

A novel bacterial strain, designated K2CV101002-2T, was isolated from forest soil collected at Dinghushan Biosphere Reserve, Guangdong Province, PR China. Phylogenetic analyses based on 16S rRNA gene sequences showed that it belonged to the genus Chitinophaga and was most closely related to Chitinophaga terrae KP01T (99.0 %), followed by Chitinophaga extrema Mgbs1T (98.3 %) and Chitinophaga solisilvae O9T (98.1 %). The draft genome sequence was 6.8 Mb long with a relative low G+C content of 39.8 mol%. The average nucleotide identity and digital DNA–DNA hybridization values between the novel strain and closely related type strains were 71.4‒76.2 % and 18.4‒19.6 %, respectively. Meanwhile the corresponding values between C. extrema Mgbs1T and C. solisilvae O9T were 98.6 and 88.1 %, respectively. The novel strain contained iso-C15:0, C16:1 ω5c and iso-C17:0 3-OH as the major fatty acids and MK-7 as the predominant respiratory quinone. The polyphasic study clearly supported that strain K2CV101002-2T represents a new species of the genus Chitinophaga , for which the name Chtinophaga silvatica sp. nov. (type strain K2CV101002-2T=GDMCC 1.1288T=JCM 32696T) is proposed. In addition, Chitinophaga extrema Goh et al. 2020 should be taken as a later heterotypic synonym of Chitinophaga solisilvae Ping et al. 2020.


Author(s):  
Shan Jiang ◽  
Feng-Bai Lian ◽  
You-Yang Sun ◽  
Xiao-Kui Zhang ◽  
Zong-Jun Du

A Gram-stain-negative, rod-shaped and facultatively aerobic bacterial strain, designated F7430T, was isolated from coastal sediment collected at Jingzi Wharf in Weihai, PR China. Cells of strain F7430T were 0.3–0.4 µm wide, 2.0–2.6 µm long, non-flagellated, non-motile and formed pale-beige colonies. Growth was observed at 4–40 °C (optimum, 30 °C), pH 6.0–9.0 (optimum, pH 7.5–8.0) and at NaCl concentrations of 1.0–10.0 % (w/v; optimum, 1.0 %). The sole respiratory quinone of strain F7430T was ubiquinone 8 and the predominant cellular fatty acids were summed feature 8 (C18 : 1  ω7c / C18 : 1  ω6c; 60.7 %), summed feature 3 (C16 : 1  ω7c/C16 : 1  ω6c; 30.2 %) and C15 : 0 iso (13.9 %). The polar lipids of strain F7430T consisted of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, one unidentified phospholipid and three unidentified lipids. Results of 16S rRNA gene sequences analyses indicated that this strain belonged to the family Halieaceae and had high sequence similarities to Parahaliea aestuarii JCM 51547T (95.3 %) and Halioglobus pacificus DSM 27932T (95.2 %) followed by 92.9–95.0 % sequence similarities to other type species within the aforementioned family. The rpoB gene sequences analyses indicated that the novel strain had the highest sequence similarities to Parahaliea aestuarii JCM 51547T (82.2 %) and Parahaliea mediterranea DSM 21924T (82.2 %) followed by 75.2–80.5 % sequence similarities to other type species within this family. Phylogenetic analyses showed that strain F7430T constituted a monophyletic branch clearly separated from the other genera of family Halieaceae . Whole-genome sequencing of strain F7430T revealed a 3.3 Mbp genome size with a DNA G+C content of 52.6 mol%. The genome encoded diverse metabolic pathways including the Entner–Doudoroff pathway, assimilatory sulphate reduction and biosynthesis of dTDP-l-rhamnose. Based on results from the current polyphasic study, strain F7430T is proposed to represent a novel species of a new genus within the family Halieaceae , for which the name Sediminihaliea albiluteola gen. nov., sp. nov. is proposed. The type strain of the type species is F7430T (=KCTC 72873T=MCCC 1H00420T).


2020 ◽  
Vol 70 (11) ◽  
pp. 5943-5949 ◽  
Author(s):  
Yun-zhen Yang ◽  
Ji-feng Chen ◽  
Wan-ru Huang ◽  
Ran-ran Zhang ◽  
Shuangjiang Liu ◽  
...  

A novel Gram-stain-negative, strictly aerobic, rod-shaped, brick red-pigmented bacterium, designated R-22-1 c-1T, was isolated from water from Baiyang Lake, Hebei Province, PR China. The strain was able to grow at 20–30 °C (optimum, 30 °C) and pH 6–7 (optimum, pH 6) in Reasoner’s 2A medium. 16S rRNA gene sequence and phylogenetic analyses of R-22-1 c-1T revealed closest relationships to Rufibacter immobilis MCC P1T (97.8 %), Rufibacter sediminis H-1T (97.9 %) and Rufibacter glacialis MDT1-10-3T (97.0 %), with other species of the genus Rufibacter showing less than 97.0 % sequence similarity. The predominant polar lipids were phosphatidylethanolamine, two unidentified aminophospholipids and three unidentified lipids. The major cellular fatty acids were iso-C15 : 0, C15 : 1  ω6c, C17 : 1  ω6c, anteiso-C15 : 0, summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1  ω7c and/or C16 : 1  ω6c) and summed feature 4 (iso-C17 : 1I and/or anteiso-C17 : 1B). The respiratory quinone was MK-7. The draft genome of R-22-1 c-1T was 5.6 Mbp in size, with a G+C content of 50.2 mol%. The average nucleotide identity and digital DNA–DNA hybridization relatedness values between strain R-22-1 c-1T and related type strains were R. immobilis MCC P1T (77.2 and 21.8 %), R. sediminis H-1T (81.6 and 21.4 %) and R. tibetensis 1351T (78.5 and 22.9 %). Based on these phylogenetic, chemotaxonomic and genotypic results, strain R-22-1 c-1T represents a novel species in the genus Rufibacter , for which the name Rufibacter latericius sp. nov. is proposed. The type strain is R-22-1 c-1T (=CGMCC 1.13570T=KCTC 62781T).


2019 ◽  
Vol 69 (4) ◽  
pp. 1075-1080 ◽  
Author(s):  
Leni Sun ◽  
Yan Chen ◽  
Wei Tian ◽  
Lunguang Yao ◽  
Zhaojin Chen ◽  
...  

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).


2020 ◽  
Vol 70 (5) ◽  
pp. 3340-3347 ◽  
Author(s):  
Soon Dong Lee ◽  
In Seop Kim ◽  
Peter Schumann ◽  
Gwanpil Song

A novel Gram-stain-positive, actinobacterial strain, designated C5-26T, was isolated from soil from a natural cave in Jeju, Republic of Korea, and its taxonomic position was investigated using a polyphasic approach. The organism was aerobic, and cells were non-spore-forming, non-motile cocci that occurred singly, in pairs, in triplets, in tetrads, in short chains or in irregular clusters. Colonies of the cells were circular, convex, entire and white. The peptidoglycan type was A4α with an l-Ser–d-Asp interpeptide bridge. The whole-cell sugars comprised glucose, rhamnose, mannose, arabinose, galactose and ribose. The major menaquinone was MK-8(H4). The polar lipids contained diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol and an unidentified phospholipid. The major fatty acids were iso-C16 : 0 and iso-C16 : 1 h. The size of the draft genome was 5.32 Mbp with depth of coverage of 161×. The G+C content of the genomic DNA was 67.1 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that the novel isolate belonged to the family Dermacoccaceae and formed a distinct subcluster at the base of the radiation of the genus Luteipulveratus . Highest sequence similarities of the novel isolate were found to the type strains of Luteipulveratus halotolerans (96.2 %), Branchiibius hedensis (95.4 %), Luteipulveratus mongoliensis (95.4 %) and Branchiibius cervicis (95.3 %). The whole genome-based phylogeny supported the novelty of the isolate at the genus level in the family Dermacoccaceae . On the basis of data from this polyphasic study, strain C5-26T (=KCTC 39632T=DSM 108676T) represents a novel species of a new genus in the family Dermacoccaceae , for which the name Leekyejoonella antrihumi gen. nov., sp. nov. is proposed.


2019 ◽  
Vol 69 (4) ◽  
pp. 909-913 ◽  
Author(s):  
Chunling Wang ◽  
Yingying Lv ◽  
Anzhang Li ◽  
Guangda Feng ◽  
Gegen Bao ◽  
...  

A Gram-stain-negative, rod-shaped and aerobic bacterium, designated K20C18050901T, was isolated from forest soil collected on 11 September 2017 from Dinghushan Biosphere Reserve, Guangdong Province, PR China (23° 10′ 24′′ N; 112° 32′ 10′′ E). Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain K20C18050901T belongs to the genus Chitinophaga , and showed the highest similarities to Chitinophaga sancti NBRC 15057T (98.6 %) and Chitinophaga oryziterrae JCM 16595T (96.9 %). The major fatty acids (>10 %) were iso-C15 : 0, C16 : 1ω5c, summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c) and iso-C17 : 0 3-OH. The predominant respiratory quinone was menaquinone-7. The major polar lipid was phosphatidylethanolamine. The draft genome size of strain K20C18050901T was 8.36 Mb with a DNA G+C content of 44.7 mol%. The digital DNA–DNA hybridization and average nucleotide identity values between strain K20C18050901T and C. sancti NBRC 15057T were 31.40 and 85.82 %, respectively. On the basis of phenotypic, genotypic and phylogenetic analysis, strain K20C18050901T represents a novel species of the genus Chitinophaga , for which the name Chitinophaga silvisoli sp. nov. is proposed. The type strain is K20C18050901T (=GDMCC 1.1411T=KCTC 62860T).


Author(s):  
Zhou-Qing Zheng ◽  
Ming-Sheng Chen ◽  
Xiao-Rui Yan ◽  
Li Tuo

A Gram-stain-negative, aerobic, short-rod-shaped bacterium, designated strain CBS1P-1T, was isolated from a surface-sterilized bark of Aegiceras corniculatum. Growth of strain CBS1P-1T was observed with between 0 and 12.0 % (w/v) NaCl (optimally with 5.0 %) and at between pH 6.0–9.0. It grew at temperatures between 25–37 °C (optimum, 30 °C). Chemotaxonomic analysis showed that ubiquinone-10 was the respiratory quinone. The lipids comprised diphosphatidylglycerol, phosphatidylglycerol, an unidentified glycolipid, an unidentified phospholipid and an unidentified aminolipid. The major fatty acids of strain CBS1P-1T were C18 : 1  ω7c, C16 : 0 and C19 : 0 cyclo ω8c. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain CBS1P-1T was most related to Pseudooceanicola antarcticus CGMCC 1.12662T with a sequence similarity of 96.5 %. The average nucleotide identity and digital DNA–DNA hybridization values between strain CBS1P-1T and P. antarcticus 1.12662T were 77.5 and 21.1 %, respectively. The G+C content of the genomic DNA was 67.3 mol%. Based on phylogenetic, chemotaxonomic and phenotypic data, strain CBS1P-1T is considered to represent a novel species of the genus Pseudooceanicola , for which the name Pseudooceanicola endophyticus is proposed. The type strain is CBS1P-1T (=KCTC 62836T=CGMCC 1.13743T).


2020 ◽  
Vol 70 (4) ◽  
pp. 2616-2623 ◽  
Author(s):  
Dhanesh Kumar ◽  
Kumar Gaurav ◽  
Jagadeeshwari U ◽  
Deepshikha G ◽  
Sasikala Ch. ◽  
...  

Strain JC651T was isolated from a sediment sample collected from Chilika lagoon, which is one of the world’s most important brackish water lakes with estuarine characteristics. Colonies of this strain are light pink and cells are Gram-stain negative, spherical to pear shaped and form rosettes. Strain JC651T grows well up to pH 9.0 and tolerates up to 5 % NaCl (w/v). The respiratory quinone is MK6. The detected major fatty acids are C18 : 1 ω9c and C16 : 0. Its polar lipids are diphosphatidylglycerol, an unidentified phospholipid, phosphatidylglycerol and phosphatidylcholine. Strain JC651T shows highest 16S rRNA gene sequence similarity (97.8%) to the type species of the genus Roseimaritima , Roseimaritima ulvae UC8T. The genome size of strain JC651T is 6.2 Mb with a G+C content of 62.4 mol%. For the resolution of the phylogenetic congruence of the novel strain, the phylogeny was also reconstructed with the sequences of 92 core genes. Based on the phylogenetic analyses, low digital DNA–DNA hybridization values (19.5%), low (74.9%) genome average nucleotide identity results, chemotaxonomic characteristics and differential physiological properties, strain JC651T is recognized as a new species of the genus Roseimaritima for which we propose the name Roseimaritima sediminicola sp. nov. The type strain is JC651T (=KCTC 72178T=NBRC 113926T).


Author(s):  
Ram Hari Dahal ◽  
Dhiraj Kumar Chaudhary ◽  
Dong-Uk Kim ◽  
Jaisoo Kim

An aerobic, Gram-stain-negative, oxidase- and catalase-positive, non-motile, non-spore-forming, rod-shaped and yellow-coloured bacterium designated strain G-6-1-13T was isolated from Gwanggyo mountain forest soil. Strain G-6-1-13T could grow at 15–40 °C (optimum, 20–32 °C), pH 4.5–10.5 (optimum, pH 6.0–9.0), at 2 % (w/v) NaCl concentration, and produced flexirubin-type pigments. Phylogenetic analysis based on its 16S rRNA gene sequence showed that strain G-6-1-13T formed a lineage within the genus Chitinophaga that was distinct from other species of the genus. Closest member was Chitinophaga varians 10–7 W-9003T (98.6 % sequence similarity) followed by C. eiseniae DSM 22224T (98.4 %), C. qingshengii JN246T (97.6 %) and C. terrae KP01T (97.4%). The major cellular fatty acids were iso-C15 : 0, C16 : 1  ω5c, and summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1  ω6c). MK-7 was the sole respiratory quinone. The major polar lipids were phosphatidylethanolamine and an unidentified phospholipid. The DNA G+C content of strain G-6-1-13T was 48.7 mol%. Average nucleotide identity and in silico DNA–DNA hybridization were below the species threshold. On the basis of phenotypic, genotypic, phylogenetic and chemotaxonomic characterization, G-6-1-13T represents a novel species in the genus Chitinophaga , for which the name Chitinophaga fulva sp. nov. is proposed. The type strain is G-6-1-13T (=KACC 21624T=NBRC 114361T).


2020 ◽  
Vol 70 (4) ◽  
pp. 2690-2695 ◽  
Author(s):  
Delong Kong ◽  
Qi Zhang ◽  
Xu Jiang ◽  
Qingyun Ma ◽  
Xiaoyan Han ◽  
...  

A Gram-stain-positive, motile, rod-shaped bacterium, designated strain LAM7113T, was isolated from soil sample collected from a birch forest in Xinjiang Uygur Autonomous Region, PR China. Strain LAM7113T grew optimally at pH 8.0, 30 °C and in the presence of 1.0 % NaCl (w/v). Phylogenetic analysis based on 16S rRNA gene sequences showed that strain LAM7113T was closely related to members of the genus Paenibacillus , with the highest similarity to Paenibacillus baekrokdamisoli Back-11T (96.2 %). The genomic DNA G+C content was 43.4 mol%. The values of average nucleotide identity and DNA–DNA hybridization were 66.1 and 27.0 %, respectively, by comparing the draft genome sequences of strain LAM7113T and P. baekrokdamisoli Back-11T. Anteiso-C15 : 0 and iso-C15 : 0 were identified as the major cellular fatty acids. Menaquinone-7 was detected as the predominant respiratory quinone. The major polar lipids were found to be diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol, three unidentified aminophospholipids, three unidentified glycolipids, one unidentified phospholipid and two unknown polar lipids. Based on its phenotypic, phylogenetic and chemotaxonomic characteristics, strain LAM7113T is proposed to represent a novel species of the genus Paenibacillus with the name Paenibacillus solisilvae sp. nov. The type strain is LAM7113T (=CGMCC 1.16619T=JCM 32513T).


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