Corynebacterium zhongnanshanii sp. nov. isolated from trachea of Marmota himalayana, Corynebacterium lujinxingii sp. nov. and Corynebacterium wankanglinii sp. nov. from human faeces

Author(s):  
Gui Zhang ◽  
Jing Yang ◽  
Xin-He Lai ◽  
Dong Jin ◽  
Shan Lu ◽  
...  

Six novel facultatively anaerobic, Gram-stain-positive, rod-shaped, non-haemolytic bacteria (zg-320T/zg-336, zg-917T/zg-910 and zg-913T/zg-915) isolated from animal tissues and human faeces were found to belong to the genus Corynebacterium based on the phylogenetic analyses of 16S rRNA gene and 262 core genes set. Based on the greatest degree of 16S rRNA similarity, zg-320T/zg-336 had the highest 16S rRNA gene similarity to Corynebacterium falsenii DSM 44353T (97.51 %), zg-917T/zg-910 to Corynebacterium coyleae DSM 44184T (98.68 %), and zg-913T/zg-915 to Corynebacterium afermentans subsp. lipophilum CIP 103500T (98.79 %). The three novel type strains had a relatively high DNA G+C content (61.2–64.4 mol%), low DNA relatedness and ANI values with their respective neighbours: 23.5/72.7 %, 25.0/72.3%and 22.6/73.1 % (zg-320T vs. Corynebacterium auriscanis CIP 106629T, Corynebacterium resistens DSM 45100T and Corynebacterium suicordis DSM 45110T); 24.4/82.3% and 23.7/81.3 % (zg-917T vs. C. coyleae DSM 44184T and Corynebacterium jeddahense JCBT); 26.8/83.7% and 27.7/84.4 % (zg-913T vs. Corynebacterium mucifaciens ATCC 700355T and C. afermentans subsp. lipophilum CCUG 32105T). The three novel species had C16 : 0, C18 : 0, C18 : 1  ω9c and C18 : 0 ante/C18 : 2  ω6,9c as the major cellular fatty acids; MK-8(H2) in strain zg-917T and MK-9(H2) in strains zg-320T and zg-913T were found to be the major respiratory quinones. For the three novel species, the detected major polar lipids included diphosphatidylglycerol, phosphatidyl inositol mannoside, phosphatidylglycerol and phosphatidylinositol, the cell-wall peptidoglycan was based on meso-DAP, and the whole-cell sugars mainly included ribose, arabinose and galactose. The three novel species grew optimally at 35–37 °C, 0.5 % (w/v) NaCl and pH 7.0–8.0; notably, they were tolerant of 10.5 % (w/v) NaCl. Based on the results of these comprehensive analyses, three novel species in the genus Corynebacterium are proposed, aptly named Corynebacterium zhongnanshanii sp. nov. (zg-320T = GDMCC 1.1719T = JCM 34106T), Corynebacterium lujinxingii sp. nov. (zg-917T = GDMCC 1.1707T = JCM 34094T) and Corynebacterium wankanglinii sp. nov. (zg-913T = GDMCC 1.1706T = JCM 34398T).

2013 ◽  
Vol 63 (Pt_9) ◽  
pp. 3287-3292 ◽  
Author(s):  
Akio Tani ◽  
Nurettin Sahin

Pink-pigmented, facultatively methylotrophic bacteria, strains 87eT and 99bT, were isolated from the bryophytes Haplocladium microphyllum and Brachythecium plumosum, respectively. The cells of both strains were Gram-reaction-negative, motile, non-spore-forming rods. On the basis of 16S rRNA gene sequence similarity, strains 87eT and 99bT were found to be related to Methylobacterium organophilum ATCC 27886T (97.1 % and 97.7 %, respectively). Strains 87eT and 99bT showed highest 16S rRNA gene similarity to Methylobacterium gnaphalii 23eT (98.3 and 99.0 %, respectively). The phylogenetic similarities to all other species of the genus Methylobacterium with validly published names were less than 97 %. Major cellular fatty acids of both strains were C18 : 1ω7c and C18 : 0. The results of DNA–DNA hybridization, phylogenetic analyses based on 16S rRNA and cpn60 gene sequences, fatty acid profiles, whole-cell matrix-assisted, laser-desorption/ionization time-of-flight mass spectrometry (MALDI-TOF/MS) analysis, and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strains 87eT and 99bT from their phylogenetically closest relatives. We propose that strains 87eT and 99bT represent novel species within the genus Methylobacterium , for which the names Methylobacterium haplocladii sp. nov. (type strain 87eT = DSM 24195T = NBRC 107714T) and Methylobacterium brachythecii sp. nov. (type strain 99bT = DSM 24105T = NBRC 107710T) are proposed.


Author(s):  
Mingchao Xu ◽  
Yan Dai ◽  
Yuyuan Huang ◽  
Jing Yang ◽  
Xin-He Lai ◽  
...  

Two pairs of aerobic, Gram-stain-positive, rod-shaped strains (HY164T/HY044, HY168T/HY211) were isolated from bat faecal samples. Strains HY164T and HY044 were motile with a polar flagellum, and had 16S rRNA gene similarity of 95.1–98.6 % to Haloactinobacterium album YIM 93306T and Haloactinobacterium glacieicola T3246-1T; strains HY168T and HY211 were most similar to Ruania albidiflava DSM 18029T (96.6 %). Phylogenetic trees based on 16S rRNA gene and whole genome sequences revealed affiliation of strains HY164T and HY168T to the family Ruaniaceae , representing novel lineages in the genera Haloactinobacterium and Ruania , respectively, which was also supported by the results for average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH). For all isolates, the principal cellular fatty acids were anteiso-C15 : 0 and iso-C14 : 0. HY164T and HY168T had MK-8(H4) as the predominant isoprenoid quinone, diphosphatidylglycerol, phosphatidylglycerol, several unidentified phospholipids and glycolipids as common polar lipids while the latter strain additionally contained one unidentified aminophospholipid and one unidentified phosphoglycolipid. Besides sharing alanine, glutamic acid and lysine with HY164T, HY168T additionally contained 2,4-diaminobutyric acid in the cell-wall peptidoglycan. The whole-cell sugars of HY164T were ribose and rhamnose, while HY168T only included the latter. The DNA G+C contents of HY164T and HY168T were 71.0 and 69.1 mol%, respectively. Combining the polyphasic taxonomic data, HY164T (=CGMCC 4.7606T=JCM 33464T) is classified as representing a novel species of the genus Haloactinobacterium with the proposed name Haloactinobacterium kanbiaonis sp. nov., and HY168T (=CGMCC 1.16970T=JCM 33465T) is proposed to represent a novel species of the genus Ruania with the name Ruania zhangjianzhongii sp. nov.


2012 ◽  
Vol 62 (Pt_5) ◽  
pp. 1145-1150 ◽  
Author(s):  
Maki Kitahara ◽  
Mitsuo Sakamoto ◽  
Sayaka Tsuchida ◽  
Koh Kawasumi ◽  
Hiromi Amao ◽  
...  

Strains of Gram-negative anaerobic rods were isolated from chinchilla (Chinchilla lanigera) faeces, and three strains, ST161T, ST33 and ST37T, were investigated taxonomically. Based on phylogenetic analyses and specific phenotypic characteristics, the three strains were allocated to the genus Bacteroides . Phylogenetic analyses of their 16S rRNA gene sequences revealed that strain ST161T formed a distinct line of descent, with highest sequence similarity to strain ST33 (98.7 %) and Bacteroides oleiciplenus JCM 16102T (97.7 %). High levels of DNA–DNA relatedness (79–89 %) were found between strains ST161T and ST33, but low levels were found between strain ST161T and B. oleiciplenus JCM 16102T (33–37 %) and between strain ST33 and B. oleiciplenus JCM 16102T (33–37 %). These data clearly indicated that strains ST161T and ST33 represent a single novel species. 16S rRNA gene sequence analyses showed that strain ST37T also formed a distinct line of descent, with highest sequence similarity to Bacteroides acidifaciens JCM 10556T (96.5 %) and Bacteroides caccae JCM 9498T (95.6 %). Analysis of hsp60 gene sequences also supported these relationships. Based on phenotypic and phylogenetic characteristics, two novel species, Bacteroides stercorirosoris sp. nov. and Bacteroides faecichinchillae sp. nov., are thus proposed. The type strains of B. stercorirosoris and B. faecichinchillae are ST161T ( = JCM 17103T = CCUG 60872T) and ST37T ( = JCM 17102T = CCUG 60873T), respectively. The DNA G+C contents of strains ST161T and ST37T were 45.7 and 41.0 mol%, respectively.


2012 ◽  
Vol 62 (Pt_9) ◽  
pp. 2163-2168 ◽  
Author(s):  
Yong-Taek Jung ◽  
Ji-Hoon Kim ◽  
So-Jung Kang ◽  
Tae-Kwang Oh ◽  
Jung-Hoon Yoon

A Gram-staining-negative, non-flagellated, non-gliding and pleomorphic bacterial strain, designated DPG-25T, was isolated from seawater in a seaweed farm in the South Sea in Korea and its taxonomic position was investigated by using a polyphasic approach. Strain DPG-25T grew optimally at 25 °C, at pH 7.0–7.5 and in the presence of 2 % (w/v) NaCl. Flexirubin-type pigments were not produced. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain DPG-25T formed a cluster with the type strains of Actibacter sediminis , Aestuariicola saemankumensis and Lutimonas vermicola . Strain DPG-25T exhibited 16S rRNA gene sequence similarity values of 95.3, 93.1 and 93.6 % to the type strains of Actibacter sediminis , Aestuariicola saemankumensis and L. vermicola , respectively. Strain DPG-25T contained MK-6 as the predominant menaquinone and iso-C15 : 0 and iso-C17 : 0 3-OH as the major fatty acids. The major polar lipids detected in strain DPG-25T were phosphatidylethanolamine and one unidentified lipid. The DNA G+C content was 39.9 mol%. Differential phenotypic properties and the phylogenetic distinctiveness of strain DPG-25T demonstrated that this strain is distinguishable from Actibacter sediminis , Aestuariicola saemankumensis and L. vermicola . On the basis of the data presented here, strain DPG-25T represents a novel species in a novel genus of the family Flavobacteriaceae , for which the name Namhaeicola litoreus gen. nov., sp. nov. is proposed. The type strain of Namhaeicola litoreus is DPG-25T ( = KCTC 23702T  = CCUG 61485T).


2013 ◽  
Vol 63 (Pt_4) ◽  
pp. 1370-1375 ◽  
Author(s):  
Isabel Snauwaert ◽  
Bart Hoste ◽  
Katrien De Bruyne ◽  
Karolien Peeters ◽  
Luc De Vuyst ◽  
...  

Two lactic acid-producing, Gram-stain-positive rods were isolated from a microbial mat actively growing in the littoral zone of an Antarctic lake (Forlidas Pond) in the Pensacola mountains and studied using a polyphasic taxonomic approach. The isolates were examined by phylogenetic analysis of the 16S rRNA gene, multilocus sequence analysis of pheS, rpoA and atpA, and biochemical and genotypic characteristics. One strain, designated LMG 26641, belonged to Carnobacterium alterfunditum and the other strain, designated LMG 26642T, could be assigned to a novel species, with Carnobacterium funditum DSM 5970T as its closest phylogenetic neighbour (99.2 % 16S rRNA gene sequence similarity). Carnobacterium iners sp. nov. could be distinguished biochemically from other members of the genus Carnobacterium by the lack of acid production from carbohydrates. DNA–DNA relatedness confirmed that strain LMG 26642T represented a novel species, for which we propose the name Carnobacterium iners sp. nov. (type strain is LMG 26642T  = CCUG 62000T).


2015 ◽  
Vol 65 (Pt_4) ◽  
pp. 1207-1212 ◽  
Author(s):  
Hong-Fei Wang ◽  
Yong-Guang Zhang ◽  
Ji-Yue Chen ◽  
Jian-Wei Guo ◽  
Li Li ◽  
...  

A novel endophytic actinobacterium, designated EGI 6500707T, was isolated from the surface-sterilized root of a halophyte Anabasis elatior (C. A. Mey.) Schischk collected from Urumqi, Xinjiang province, north-west China, and characterized using a polyphasic approach. Cells were Gram-stain-positive, non-motile, short rods and produced white colonies. Growth occurred at 10–45 °C (optimum 25–30 °C), at pH 5–10 (optimum pH 8) and in presence of 0–4 % (w/v) NaCl (optimum 0–3 %). The predominant menaquinone was MK-9. The diagnostic phospholipids were diphosphatidylglycerol and phosphatidylglycerol. The major fatty acids were anteiso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0. The DNA G+C content of strain EGI 6500707T was 69.1 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain EGI 6500707T should be placed in the genus Frigoribacterium (family Microbacteriaceae , phylum Actinobacteria ), and that the novel strain exhibited the highest 16S rRNA gene sequence similarity to Frigoribacterium faeni JCM 11265T (99.1 %) and Frigoribacterium mesophilum MSL-08T (96.5 %). DNA–DNA relatedness between strain EGI 6500707T and F. faeni JCM 11265T was 47.2 %. On the basis of phenotypic and chemotaxonomic characteristics, phylogenetic analysis and DNA–DNA relatedness data, strain EGI 6500707T represents a novel species of the genus Frigoribacterium , for which the name Frigoribacterium endophyticum sp. nov. is proposed. The type strain is EGI 6500707T ( = JCM 30093T = KCTC 29493T).


2020 ◽  
Vol 70 (10) ◽  
pp. 5287-5295 ◽  
Author(s):  
Yajun Ge ◽  
Yuanmeihui Tao ◽  
Jing Yang ◽  
Xin-He Lai ◽  
Dong Jin ◽  
...  

Four unknown strains belonging to the genus Arthrobacter were isolated from plateau wildlife on the Qinghai–Tibet Plateau of PR China. Phylogenetic analysis based on 16S rRNA gene sequences showed that the four isolates were separated into two clusters. Cluster I (strains 785T and 208) had the greatest 16S rRNA gene sequence similarity to Arthrobacter citreus (98.6 and 98.7 %, respectively), Arthrobacter luteolus (98.0 and 98.1%, respectively), Arthrobacter gandavensis (97.9 and 98.0 %, respectively) and Arthrobacter koreensis (97.6 and 97.7 %, respectively). Likewise, cluster II (strains J391T and J915) had the highest sequence similarity to Arthrobacter ruber (98.6 and 98.3 %, respectively) and Arthrobacter agilis (98.1 and 97.9  %, respectively). Average nucleotide identity and the digital DNA–DNA hybridization values illustrated that the two type strains, 785T and J391T, represented two separate novel species that are distinct from all currently recognized species in the genus Arthrobacter . These strains had DNA G+C contents of 66.0–66.1 mol% (cluster I) and 68.0 mol% (cluster II). The chemotaxonomic properties of strains 785T and J391T were in line with those of the genus Arthrobacter : anteiso-C15:0 (79.3 and 40.8 %, respectively) as the major cellular fatty acid, MK-8(H2) (65.8 %) or MK-9(H2) (75.6 %) as the predominant respiratory quinone, a polar lipid profile comprising diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, glycolipids and phospholipid, and A3α or A4α as the cell wall peptidoglycan type. On the basis of our results, two novel species in the genus Arthrobacter are proposed, namely Arthrobacter yangruifuii sp. nov. (type strain, 785T=CGMCC 1.16725T=GDMCC 1.1592T=JCM 33491T) and Arthrobacter zhaoguopingii sp. nov. (type strain, J391T=CGMCC 1.17382T=GDMCC 1.1667T=JCM 33841T).


Author(s):  
Peng Wang ◽  
Yuxin Gao

Chakrabartia godavariana PRB40T was compared with Aestuariisphingobium litorale SYSU M10002T to examine the taxonomic relationship between the two type strains. The 16S rRNA gene sequence of C. godavariana PRB40T had high similarity (99.8 %) to that of A. litorale SYSU M10002T. The results of phylogenetic analyses based on 16S rRNA gene sequences indicated that the two strains formed a tight cluster within the genus Chakrabartia . A draft genomic comparison between the two strains revealed an average nucleotide identity of 97.3 % and a digital DNA–DNA hybridization estimate of 79.5±2.9 %, strongly indicating that the two strains represented a single species. In addition, neither strain displayed any striking differences in metabolic, physiological or chemotaxonomic features. Therefore, we propose that Aestuariisphingobium litorale is a later heterotypic synonym of Chakrabartia godavariana .


Author(s):  
Xiao-Xian Huang ◽  
Jia Shang ◽  
Lian Xu ◽  
Rui Yang ◽  
Ji-Quan Sun

A Gram-stain-negative, non-motile, rod-shaped bacterial strain, named SJ-16T, was isolated from desert soil collected in Inner Mongolia, northern PR China. Strain SJ-16T grew at pH 6.0–11.0 (optimum, pH 8.0–9.0), 4–40 °C (optimum, 30–35 °C) and in the presence of 0–8 % (w/v) NaCl (optimum, 0–2 %). The strain was negative for catalase and positive for oxidase. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain SJ-16T clustered with Luteimonas chenhongjianii 100111T and Luteimonas terrae THG-MD21T, and had 98.8, 98.6, 98.3 and <97.9 % of 16S rRNA gene sequence similarity to strains L. chenhongjianii 100111T, L. terrae THG-MD21T, L. aestuarii B9T and all other type strains of the genus Luteimonas , respectively. The major cellular fatty acids were iso-C15 : 0, iso-C16 : 0, summed feature 3 (C16 : 1  ω7c and/or C16 : 1  ω6c) and summed feature 9 (C16 : 0 10-methyl and/or iso-C17 : 1  ω9c). Diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine were the major polar lipids, and ubiquinone-8 was the only respiratory quinone. The genomic DNA G+C content was 69.3 mol%. The digital DNA–DNA hybridization and average nucleotide identity values of strain SJ-16T to L. chenhongjianii 100111T, L. terrae THG-MD21T, L. rhizosphaerae 4-12T and L. aestuarii B9T were 36.9, 37.5, 24.0 and 21.1 %, and 80.9, 80.6, 80.7 and 76.3 %, respectively. Based on phenotypic, physiological and phylogenetic results, strain SJ-16T represents a novel species of the genus Luteimonas , for which the name Luteimonas deserti is proposed. The type strain is SJ-16T (=CGMCC 1.17694T=KCTC 82207T).


2020 ◽  
Vol 70 (9) ◽  
pp. 4851-4858 ◽  
Author(s):  
Tiphaine Le Roy ◽  
Patrick Van der Smissen ◽  
Adrien Paquot ◽  
Nathalie Delzenne ◽  
Giulio G. Muccioli ◽  
...  

A strictly anaerobic, Gram-stain-negative, non-spore-forming, non-motile, non-pigmented bacterium, strain J115T, was isolated from human faeces. Cells of strain J115T were straight rods, generally 1.8–3.0 µm, but could be up to 18 µm long. Growth occurred below 2 % (w/v) NaCl and 2 % (v/v) bile. Strain J115T produced acid from myo-inositol but not from d-glucose, d-ribose or d-xylose. Butyric acid was the major end-product from myo-inositol. The genomic DNA G+C content was 58.92 mol%. Phylogenetic analysis based on 16S rRNA gene sequencing indicated that the closest cultivated neighbours of strain J115T were Oscillibacter ruminantium GH1T (95.4 % similarity) and Oscillibacter valericigenes Sjm18-20T (94.1 %). Strain J115T was also related to the not-yet-cultured bacterium Oscillospira guilliermondii (92–93 % similarity). Coherently with the 16S rRNA gene sequence results, the ANI scores don't have units of strain J115T to O. ruminantium GH1T and O. valericigenes Sjm18-20T were 73.37 and 73.24, respectively, while in silico estimations of DNA–DNA hybridization were both 20.4 %, with confidence intervals of 18.2–22.9 % and 18.2–22.8 %, respectively. The major fatty acids were iso-C15 : 0 (24.2 %), C18 : 0 DMA (18.4 %), anteiso-C15 : 0 (15.2 %) and C16 : 0 DMA (7.6 %). No respiratory quinone was detected. Based on phenotypic features and phylogenetic position, it is proposed that this isolate represents a novel species in a new genus, Dysosmobacter welbionis gen. nov., sp. nov. The type strain of Dysosmobacter welbionis is J115T (DSM 106889T=LMG 30601T).


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