scholarly journals Pedobacter huanghensis sp. nov. and Pedobacter glacialis sp. nov., isolated from Arctic glacier foreland

2014 ◽  
Vol 64 (Pt_7) ◽  
pp. 2431-2436 ◽  
Author(s):  
Xia Qiu ◽  
Zhihao Qu ◽  
Fan Jiang ◽  
Lvzhi Ren ◽  
Xulu Chang ◽  
...  

Two psychrotolerant, Gram-stain-negative, rod-shaped bacterial strains, designed M1-27T and 8-24T, were subjected to polyphasic taxonomic studies. Strain M1-27T was isolated from the foreland of the Midtre Lovénbreen glacier, whereas strain 8-24T was isolated from the foreland of the Austre Lovénbreen glacier. Both were Arctic glacier forelands, near Ny-Ålesund, Svalbard Archipelago, Norway. Strains M1-27T and 8-24T exhibited 16S rRNA gene sequence similarities of 91.0–96.0 % and 92.3–96.7 %, respectively, to type strains of recognized species of the genus Pedobacter . Phylogenetic analysis based on 16S rRNA gene sequences showed that the two strains were grouped with members of the genus Pedobacter, but represented distinct taxa. Both strains contained MK-7 as the predominant menaquinone. The DNA G+C contents of strains M1-27T and 8-24T were 43.8 % and 39.4 %, respectively. The phenotypic characteristics, biochemical properties and polygenetic analysis, clearly indicated that strains M1-27T ( = CCTCC AB 2012936T = LMG 28205T) and 8-24T ( = CCTCC AB 2012941T = NRRL B-59993T) represent two novel species of the genus Pedobacter , for which the names Pedobacter huanghensis sp. nov. and Pedobacter glacialis sp. nov., respectively, are proposed.

Author(s):  
Soon Dong Lee ◽  
Yeong-Sik Byeon ◽  
Sung-Min Kim ◽  
Hong Lim Yang ◽  
In Seop Kim

Taxonomic positions of four Gram-negative bacterial strains, which were isolated from larvae of two insects in Jeju, Republic of Korea, were determined by a polyphasic approach. Strains CWB-B4, CWB-B41 and CWB-B43 were recovered from larvae of Protaetia brevitarsis seulensis, whereas strain BWR-B9T was from larvae of Allomyrina dichotoma. All the isolates grew at 10–37 °C, at pH 5.0–9.0 and in the presence of 4 % (w/v) NaCl. The 16S rRNA gene phylogeny showed that the four isolates formed two distinct sublines within the order Enterobacteriales and closely associated with members of the genus Jinshanibacter . The first group represented by strain CWB-B4 formed a tight cluster with Jinshanibacter xujianqingii CF-1111T (99.3 % sequence similarity), whereas strain BWR-B9T was most closely related to Jinshanibacter zhutongyuii CF-458T (99.5 % sequence similarity). The 92 core gene analysis showed that the isolates belonged to the family Budviciaceae and supported the clustering shown in 16S rRNA gene phylogeny. The genomic DNA G+C content of the isolates was 45.2 mol%. A combination of overall genomic relatedness and phenotypic distinctness supported that three isolates from Protaetia brevitarsis seulensis are different strains of Jinshanibacter xujianqingii , whereas one isolate from Allomyrina dichotoma represents a new species of the genus Jinshanibacter . On the basis of results obtained here, Jinshanibacter allomyrinae sp. nov. (type strain BWR-B9T=KACC 22153T=NBRC 114879T) and Insectihabitans xujianqingii gen. nov., comb. nov. are proposed, with the emended descriptions of the genera Jinshanibacter , Limnobaculum and Pragia .


2020 ◽  
Vol 70 (12) ◽  
pp. 6195-6202 ◽  
Author(s):  
Heeyoung Kang ◽  
Haneul Kim ◽  
Inseong Cha ◽  
Kiseong Joh

Two Gram-stain-negative, strictly aerobic, non-motile and rod-shaped bacterial strains, designated as HMF7605T and HMF7616T, were isolated from birch tree, in Yong-in, Republic of Korea. Strains HMF7605T and HMF7616T exhibited the highest 16S rRNA gene sequence similarities of 95.9 and 97.5 % to Adhaeribacter swui 17mud1-7T, 97.9 % between themselves. The values of average nucleotide identity and in silico DNA–DNA hybridization between strains HMF7605T and HMF7616T were 77.6 and 22.0 %, respectively. Phylogenetic analysis of the 16S rRNA gene sequences of the two strains revealed that they belonged to the genus Adhaeribacter within the family Hymenobacteraceae . The predominant fatty acids of both strains were iso-C15 : 0, summed feature 3 (comprising C16 : 1  ω7c and/or C16 : 1  ω6c), C16 : 1  ω5c and summed feature 4 (comprising iso-C17 : 1 I and/or anteiso-C17 : 1 B). The both strains contained menaquinone-7 as the only isoprenoid quinone. The major polar lipid profiles of the two strains were similar with phosphatidylethanolamine, one unidentified aminophosphoglycolipid, one unidentified glycolipid and three unidentified polar lipids. The DNA G+C contents of strains HMF7605T and HMF7616T were 42.0 and 42.8 mol%, respectively. Based on the results of the phenotypic, genotypic, chemotaxonomic and phylogenetic investigation, two novel species, Adhaeribacter arboris sp. nov. and Adhaeribacter pallidiroseus sp. nov. are proposed. The type strains are HMF7605T (=KCTC 62465T=NBRC 113228T) and HMF7616T (=KCTC 62466T=NBRC 113229T), respectively.


Author(s):  
Heeyoung Kang ◽  
Haneul Kim ◽  
Seokhyeon Bae ◽  
Kiseong Joh

Three Gram-stain-negative, strictly aerobic, non-motile and rod-shaped bacterial strains, designated as HME9299T, HMF7410T and HMF7856T, were isolated from freshwater and tree bark collected in Yong-in, Republic of Korea. Strains HME9299T, HMF7410T and HMF7856T exhibited the highest 16S rRNA gene sequence similarities of 97.2, 94.4 and 96.4 % to Mucilaginibacter daejeonensis Jip 10T, Mucilaginibacter terrae CCM 8645T and Mucilaginibacter phyllosphaerae PP-F2F-G21T, respectively. Among themselves, the values were 94.1–95.7 %. Phylogenetic analysis of the 16S rRNA gene sequences of the three isolates revealed that they belonged to the genus Mucilaginibacter within the family Sphingobacteriaceae . The predominant fatty acids of three strains were summed feature 3 (comprising C16 : 1  ω7c and/or C16 : 1  ω6c) and iso-C15 : 0. Strain HME9299T contained a relatively large amount of C16 : 1  ω5c. The predominant respiratory quinone was menaquinone-7. The genome sizes of strains HME9299T, HMF7410T and HMF7856T were 4.33, 4.16 and 3.68 Mbp, respectively, and their DNA G+C contents were 41.6, 38.4 and 43.9 mol%, respectively. Based on the results of the phenotypic, genotypic, chemotaxonomic and phylogenetic investigation, three novel species, Mucilaginibacter aquatilis sp. nov, Mucilaginibacter arboris sp. nov. and Mucilaginibacter ginkgonis sp. nov., are proposed. The type strains are HME9299T (=KCTC 42122T=DSM 29146T), HMF7410T (=KCTC 62464T=NBRC 113227T) and HMF7856T (=KCTC 72782T=NBRC 114275T), respectively.


2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3798-3803 ◽  
Author(s):  
Fan Jiang ◽  
Xia Qiu ◽  
Xulu Chang ◽  
Zhihao Qu ◽  
Lvzhi Ren ◽  
...  

A novel, Gram-stain-negative, aerobic, non-motile and rod-shaped bacterium, designated R9-86T, was isolated from tundra soil collected near Ny-Ålesund, Svalbard Archipelago, Norway (78° N). Growth occurred at 4–28 °C (optimum, 22–25 °C) and at pH 6.0–9.0 (optimum, pH 7.0). Flexirubin-type pigments were absent. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain R9-86T belonged to the genus Terrimonas in the family Chitinophagaceae . 16S rRNA gene sequence similarities between strain R9-86T and the type strains of species of the genus Terrimonas with validly published names ranged from 93.7 to 95.0 %. Strain R9-86T contained iso-C15 : 1-G (25.7 %), iso-C15 : 0 (24.5 %), iso-C17 : 0-3OH (18.3 %) and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c, 8.7 %) as its major cellular fatty acids; phosphatidylethanolamine and an unknown polar lipid as its main polar lipids, and MK-7 as its predominant respiratory quinone. The DNA G+C content was 48.4 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain R9-86T is considered to represent a novel species of the genus Terrimonas , for which the name Terrimonas arctica sp. nov. is proposed. The type strain is R9-86T ( = CCTCC AB 2011004T = NRRL B-59114T).


2019 ◽  
Vol 69 (4) ◽  
pp. 1093-1098 ◽  
Author(s):  
Junqin Li ◽  
Shan Lu ◽  
Dong Jin ◽  
Jing Yang ◽  
Xin-He Lai ◽  
...  

Two novel aerobic, Gram-staining-positive and non-spore-forming bacterial strains, 194T and S1194, were isolated from faeces of Tibetan antelopes sampled at the Qinghai–Tibet Plateau of China. The strains were able to grow in medium up to 10 % NaCl, similar to the NaCl-resistant property of the genus Salinibacterium members. The 16S rRNA gene sequences of the strains showed the highest similarity to Salinibacterium xinjiangense(98.1–98.2 %), and phylogenetic analysis based on 16S rRNA gene sequences indicated that strains 194T and S1194 represent a new lineage. The DNA G+C contents of strain 194T and S1194 are 64.1 and 64.2 mol%. Their genomes exhibit less than 96 % average nucleotide identity and 70 % DNA–DNA relatedness to known species of Salinibacterium . Strains 194T and S1194 are unable to utilize d-mannose or produce naphthol-AS-BI-phosphohydrolase. The two strains had anteiso-C15 : 0 and anteiso-C17 : 0 as major fatty acids, and their cell walls contained lysine, alanine, glycine and glutamic acid. The predominant menaquinones identified were MK-11 and MK-10, with diphosphatidylglycerol and phosphatidylglycerol as major polar lipids. Overall, the major cellular content profiles of 194T agreed with those of Salinibacterium xinjiangense and Salinibacterium amurskyense, though the proportions were distinct. Based on genotypic, phenotypic and biochemical analyses, the novel species Salinibacterium hongtaonis sp. nov. is proposed. The type strain is 194T (=CGMCC 1.16371T=DSM 106171T).


2020 ◽  
Vol 70 (3) ◽  
pp. 2049-2052 ◽  
Author(s):  
Yang Liu ◽  
Tao Pei ◽  
Honghui Zhu

The present study aimed to examine the taxonomic relationship between two species, Paracoccus bengalensis Ghosh et al. 2006 and Paracoccus versutus (Harrison 1983) Katayama et al. 1996. Comparison of 16S rRNA gene sequences revealed that P. bengalensis JJJT was highly similar (99.9 %) to P. versutus A2T. The results of phylogenetic analysis based on 16S rRNA gene sequences indicated that the two strains formed a tight cluster within the genus Paracoccus . Whole genomic comparison between the two strains showed a digital DNA–DNA hybridization estimate of 82. 0 % and an average nucleotide identity value of 98.2 %, clearly indicating that the two strains were members of the same species. Moreover, the type strains of both species shared similar physiological and biochemical properties and fatty acids profiles. Based on genotypic and phenotypic evidence, we conclude that Paracoccus bengalensis Ghosh et al. 2006 is a later heterotypic synonym of Paracoccus versutus (Harrison 1983) Katayama et al. 1996 according to the priority of publication and validation of the name.


2020 ◽  
Vol 70 (10) ◽  
pp. 5497-5502 ◽  
Author(s):  
Sheng-Chung Chen ◽  
Nai-Hsuan Teng ◽  
Yu-Shih Lin ◽  
Mei-Chin Lai ◽  
Hsin-Hung Chen ◽  
...  

A mesophilic, hydrogenotrophic methanogen, strain FWC-SCC2T, was isolated from deep-sea sediments collected by a real-time video multiple-corer at the C5-6 station near a cold seep at Four-Way Closure Ridge region during R/V Ocean Researcher III ORIII-1900 cruise in 2015. The cells were irregular cocci, non-motile and 0.8–1.2 µm in diameter. The methanogenic substrates utilized by strain FWC-SCC2T were formate or H2+CO2, but not acetate, methanol, ethanol or methylamines. Strain FWC-SCC2T was lysed in SDS (0.01 %, w/v). The M r of surface-layer protein was 116 400. The optimum growth conditions of strain FWC-SCC2T were 37 °C, 0.17 M NaCl and pH 6.7–7.0. The genomic DNA G+C content calculated from the genome sequence of strain FWC-SCC2T was 59.5 mol %. Phylogenetic analysis revealed that strain FWC-SCC2T was a member of the genus Methanofollis , and was most closely related to Methanofollis tationis Chile 9T (97.6 % similarity of 16S rRNA gene sequence) and shared 97.4, 95.9, 95.9 and 95.4 % with Methanofollis liminatans GKZPZT, Methanofollis formosanus ML15T, Methanofollis aquaemaris N2F9704T and Methanofollis ethanolicus HASUT, respectively. The genome relatedness values between strain FWC-SCC2T and M. tationis DSM 2702T were estimated by average nucleotide identity and digital DNA–DNA hybridization analyses and the results were 79.4 and 21.2 %, respectively. Based on the differences in physiological and biochemical properties, 16S rRNA gene phylogeny and genome relatedness presented here, it is suggested that strain FWC-SCC2T represents a novel species of the genus Methanofollis , and the name Methanofollis fontis sp. nov. is proposed. The type strain is FWC-SCC2T (=BCRC AR10052T=DSM 107935T= NBRC 113164T).


Author(s):  
Lifeng Guo ◽  
Zhiqi Li ◽  
Xi Xu ◽  
Qiuying Pang ◽  
Junwei Zhao

A novel actinobacterium, designated strain NEAU-D428T, was isolated from rhizosphere soil of wheat and characterized using a polyphasic approach. Morphological and chemotaxonomic characteristics of the strain coincided with members of the genus Microbispora . The 16S rRNA gene sequence analysis showed that the isolate was most closely related to Microbispora bryophytorum NEAU-TX2-2T (99.2 %). Phylogenetic analysis based on the 16S rRNA gene sequences indicated that the strain clustered with Microbispora clausenae CLES2T (99.1 %), but formed a separate subclade in the phylogenomic tree within the genus Microbispora . The menaquinones were identified as MK-9(H4), MK-9(H2) and MK-9(H0). The phospholipid profile was found to consist of diphosphatidylglycerol, phosphatidylmonomethylethanolamine, phosphatidylethanolamine, ninhydrin-positive glycophospholipid, phosphatidylinositol and phosphatidylinositol mannoside. The major fatty acids were identified as iso-C16 : 0, C16 : 0, 10-methyl C17 : 0 and C18 : 0. Digital DNA–DNA hybridization and average nucleotide identity values between strain NEAU-D428T and M. bryophytorum NEAU-TX2-2T, Microbispora camponoti 2C-HV3T, M. clausenae CLES2T, ‘Microbispora cellulosiformans’ Gxj-6T and Microbispora fusca NEAU-HEGS1-5T were 47.6 and 92.2 %, 47.5 and 92.2 %, 55.9 and 94.0 %, 33.1 and 86.8 %, and 33.6 and 87.1 %, respectively. These results and some physiological and biochemical properties demonstrated that the strain could be distinguished from its closest relatives. Therefore, it is proposed that strain NEAU-D428T should be classified as representative of a novel species of the genus Microbispora , for which the name Microbispora sitophila sp. nov. is proposed. The type strain is NEAU-D428T (=CGMCC 4.7523T=DSM 109822T).


2012 ◽  
Vol 62 (Pt_9) ◽  
pp. 2259-2263 ◽  
Author(s):  
Fan Jiang ◽  
Wenjuan Li ◽  
Mengchen Xiao ◽  
Jun Dai ◽  
Wenjing Kan ◽  
...  

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.


2012 ◽  
Vol 62 (Pt_9) ◽  
pp. 2140-2144 ◽  
Author(s):  
Chitti Thawai ◽  
Takuji Kudo

A novel actinomycete, strain S7F-02T, which produced primary branched hyphae and fragmented into V- and Y-shaped bacillary cells, was isolated from marine sediment collected in the Andaman Sea, Trang Province, Thailand. Lysine was found to be the diagnostic diamino acid in the cell-wall peptidoglycan. The whole-cell sugars of strain S7F-02T were ribose, arabinose and glucose. The characteristic phospholipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylinositol. The predominant menaquinone was MK-9(H4). The predominant cellular fatty acids were anteiso-C15 : 0 and iso-C15 : 0. The G+C content of the genomic DNA of strain S7F-02T was 70.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain S7F-02T should be classified in the genus Promicromonospora . This strain formed a close association with Promicromonospora citrea DSM 43110T, with which it shared 99.2 % 16S rRNA gene sequence similarity. DNA–DNA hybridization data together with physiological and biochemical properties showed that strain S7F-02T could be readily distinguished from its closest phylogenetic relatives. On the basis of these phenotypic and genotypic data, strain S7F-02T is considered to represent a novel species of the genus Promicromonospora , for which the name Promicromonospora thailandica sp. nov. is proposed. The type strain is S7F-02T ( = BCC 41922T = JCM 17130T).


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