Bacteroides reticulotermitis sp. nov., isolated from the gut of a subterranean termite (Reticulitermes speratus)

2013 ◽  
Vol 63 (Pt_2) ◽  
pp. 691-695 ◽  
Author(s):  
Mitsuo Sakamoto ◽  
Moriya Ohkuma

An obligately anaerobic, non-pigmented, non-spore-forming, Gram-staining-negative, rod-shaped bacterium, designated strain Rs-03T, was isolated from the gut of the subterranean termite Reticulitermes speratus. The taxonomic position of the novel strain was determined by following a polyphasic approach. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain Rs-03T was a member of the genus Bacteroides and was most closely related to Bacteroides thetaiotaomicron JCM 5827T (95.0 % sequence similarity), Bacteroides faecis JCM 16478T (94.8 %) and Bacteroides xylanisolvens JCM 15633T (94.3 %). The results of hsp60 gene sequence analysis indicated that the novel strain was different from established members of the genus Bacteroides . Strain Rs-03T was saccharolytic and produced succinic and acetic acids, with small amounts of propionic acid, as metabolic end products. The major cellular fatty acids of strain Rs-03T were anteiso-C15 : 0, C18 : 1ω9c and iso-C17 : 0 3-OH. The major menaquinones were MK-10 and MK-9 and the genomic DNA G+C content was 44.9 mol%. Based on these data, strain Rs-03T represents a novel species in the genus Bacteroides , for which the name Bacteroides reticulotermitis sp. nov. is proposed. The type strain is Rs-03T ( = JCM 10512T = CCUG 62153T).

2012 ◽  
Vol 62 (Pt_12) ◽  
pp. 2844-2850 ◽  
Author(s):  
Sathiyaraj Srinivasan ◽  
Jae-Jin Lee ◽  
Sangyong Lim ◽  
Minho Joe ◽  
Myung Kyum Kim

A Gram-staining-positive, strictly aerobic, spherical, non-motile, red-pigmented bacterium, designated strain MK03T, was isolated from a soil sample collected in South Korea. The taxonomic position of the novel strain was investigated using a polyphasic approach. In phylogenetic analyses based on 16S rRNA gene sequences, strain MK03T was placed in a clade formed by members of the genus Deinococcus in the family Deinococcaceae and appeared to be most closely related to Deinococcus aerolatus 5516T-9T (97.4 % sequence similarity), Deinococcus marmoris AA-63T (97.2 %), Deinococcus radiopugnans ATCC 19172T (97.2 %) and Deinococcus saxicola AA-1444T (96.9 %). The genomic DNA G+C content of the novel strain was 64.5 mol%. The chemotaxonomic characteristics of strain MK03T were typical of members of the genus Deinococcus : MK-8 was identified as the predominant respiratory quinine, the major fatty acids were C16 : 1ω7c, C15 : 1ω6c, C16 : 0 and C15 : 0, ornithine was found to be the diamino acid in the cell-wall peptidoglycan and the novel strain showed resistance to gamma radiation, with a D10 value (i.e. the dose required to reduce the bacterial population by 10-fold) in excess of 9 kGy. In hybridization experiments, only low DNA–DNA relatedness values (11.6–34.5 %) were recorded between the novel strain and its closest relatives in the genus Deinococcus . Based on the phylogenetic, chemotaxonomic, phenotypic and DNA–DNA relatedness data, strain MK03T represents a novel species of the genus Deinococcus , for which the name Deinococcus humi sp. nov. is proposed. The type strain is MK03T ( = KCTC 13619T  = JCM 17915T).


2013 ◽  
Vol 63 (Pt_4) ◽  
pp. 1421-1426 ◽  
Author(s):  
Byoung-Jun Yoon ◽  
Dong-Heon Lee ◽  
Duck-Chul Oh

A Gram-staining-negative, yellow-pigmented, non-motile, strictly aerobic, rod-shaped bacterium, designated strain CNU001T, was isolated from seawater collected on the coast of Jeju Island, South Korea, and subjected to a polyphasic taxonomic study. The temperature, pH and NaCl ranges for growth were 10–30 °C, pH 6.0–10.0 and 2.0–5.0 %, respectively. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain CNU001T belonged to the genus Erythrobacter in the family Erythrobacteraceae , with Erythrobacter longus DSM 6997T (96.6 % sequence similarity), Erythrobacter gaetbuli SW-161T (96.3 %), Erythrobacter vulgaris 022 2-10T (96.2 %), Erythrobacter nanhaisediminis T30T (96.1 %) and other members of the genus Erythrobacter (<96.0 %) identified as the novel strain’s closest relatives. The major cellular fatty acids were C18 : 1ω7c and C17 : 1ω6c. The polar lipids were found to be diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, phosphatidylglycerol, one sphingoglycolipid, one unidentified aminolipid and six other unidentified lipids. The major respiratory quinone was ubiquinone-10 (UQ-10) and the genomic DNA G+C content of the novel strain was 58.9 mol%. On the basis of phenotypic, phylogenetic and genotypic data, strain CNU001T represents a novel species within the genus Erythrobacter , for which the name Erythrobacter jejuensis sp. nov. is proposed. The type strain is CNU001T ( = KCTC 23090T  = JCM 16677T).


2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3551-3555 ◽  
Author(s):  
Lei Song ◽  
Hongcan Liu ◽  
Ying Huang ◽  
Xin Dai ◽  
Yuguang Zhou

A Gram-staining-negative, strictly aerobic, non-gliding, rod-shaped bacterial strain, designated SW105T, was isolated from a seawater sample collected from the Indian Ocean. The strain produced flexirubin-type pigments and grew at 15–45 °C (optimum, 35 °C), at pH 5.5–8.5 (optimum, pH 7.0–7.5) and in the presence of 0–5.0 % (w/v) NaCl (optimum, 1.0–1.5 %). The predominant cellular fatty acids were iso-C15 : 0, summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c), iso-C17 : 1ω9c and iso-C17 : 0 3-OH. The major menaquinone was menaquinone 6 (MK-6) and the major polar lipids were phosphatidylethanolamine and two unidentified aminophospholipids. The genomic DNA G+C content of strain SW105T was 36.2 mol%. Phylogenetic analyses based on 16S rRNA gene sequences revealed that the novel isolate was related to members of the genus Flavobacterium , showing the highest similarity to Flavobacterium ummariense DS-12T and Flavobacterium ceti CCUG 52969T (94.3 and 93.0 % sequence similarity, respectively). On the basis of phylogenetic inference and phenotypic characteristics, it is proposed that strain SW105T represents a novel species of the genus Flavobacterium , for which the name Flavobacterium marinum sp. nov. is proposed. The type strain is SW105T ( = CGMCC 1.10825T = JCM 18132T).


2012 ◽  
Vol 62 (Pt_7) ◽  
pp. 1625-1629 ◽  
Author(s):  
Guillaume Borrel ◽  
Keith Joblin ◽  
Annie Guedon ◽  
Jonathan Colombet ◽  
Vincent Tardy ◽  
...  

An autotrophic, hydrogenotrophic methanogen, designated strain 17A1T, was isolated from the profundal sediment of the meromictic Lake Pavin, France. The cells of the novel strain, which were non-motile, Gram-staining-negative rods that measured 2–15 µm in length and 0.2–0.4 µm in width, grew as filaments. Strain 17A1T grew in a mineral medium and its growth was stimulated by the addition of yeast extract, vitamins, acetate or rumen fluid. Penicillin, vancomycin and kanamycin reduced growth but did not completely inhibit it. Growth occurred at 14–41 °C (optimum 30 °C), at pH 5.0–8.5 (optimum pH 6.5) and with 0–0.4 M NaCl (optimum 0.1 M). The novel strain utilized H2/CO2 and methanol/H2 as substrates but not formate, acetate, methylamine/H2, isobutanol or 2-propanol. Its genomic DNA G+C content was 37.0 mol%. In phylogenetic analyses based on 16S rRNA gene sequences, strain 17A1T appeared to be a member of the genus Methanobacterium , with Methanobacterium beijingense 8-2T (96.3 % sequence similarity) identified as the most closely related established species. Based on phenotypic and phylogenetic data, strain 17A1T represents a novel species of methanogen within the genus Methanobacterium , for which the name Methanobacterium lacus sp. nov. is proposed. The type strain is 17A1T ( = DSM 24406T = JCM 17760T).


2013 ◽  
Vol 63 (Pt_5) ◽  
pp. 1639-1645 ◽  
Author(s):  
Lei Zhang ◽  
Xihui Shen ◽  
Yingbao Liu ◽  
Shiqing Li

A Gram-staining-negative, rod-shaped, gliding and pale-pink-pigmented bacterium, designated strain ZLM-10T, was isolated from a soil sample collected from an arid area in Xinjiang province, China, and characterized in a taxonomic study using a polyphasic approach. The novel strain grew optimally at 30–37 °C and in the presence of 2 % (w/v) sea salts. The only respiratory quinone detected was MK-7 and the major cellular fatty acids were summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1ω7c), iso-C15 : 0 and iso-C17 : 0 3-OH. The polar lipids consisted of diphosphatidylglycerol, phosphatidylethanolamine, an unidentified aminolipid and two unidentified aminophospholipids. The DNA G+C content was 45.4 mol%. Flexirubin-type pigments were not produced. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain ZLM-10T was a member of the phylum Bacteroidetes and appeared most closely related to Cesiribacter roseus 311T (90.2 % sequence similarity), Marivirga sericea LMG 13021T (89.2 %), Cesiribacter andamanensis AMV16T (89.1 %) and Marivirga tractuosa DSM 4126T (89.1 %). On the basis of phenotypic and genotypic data and phylogenetic inference, strain ZLM-10T should be classified as a novel species of a new genus in the family Flammeovirgaceae , for which the name Nafulsella turpanensis gen. nov., sp. nov. is proposed. The type strain of the type species is ZLM-10T ( = CCTCC AB 208222T = KCTC 23983T).


2014 ◽  
Vol 64 (Pt_2) ◽  
pp. 431-437 ◽  
Author(s):  
Kyung-Sook Whang ◽  
Jae-Chan Lee ◽  
Hae-Ran Lee ◽  
Song-Ih Han ◽  
Sang-Ho Chung

An exopolysaccharide-producing bacterium, designated strain DRP 35T, was isolated from the rhizosphere soil of a medicinal herb, Angelica sinensis, at Geumsan in Korea. Cells were Gram-staining-negative, non-motile, catalase-positive and oxidase-negative short rods. The isolate grew aerobically from 15 to 45 °C (optimum 30 °C), pH 3.5–7.0 (optimum pH 5.0) and in the presence of 0–1.0 % (w/v) NaCl. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain DRP 35T belongs to the genus Terriglobus in the phylum Acidobacteria with a sequence similarity of 97.2 % and 97.0 % to Terriglobus saanensis SP1PR4T and Terriglobus roseus KBS63T, respectively. The genomic DNA G+C content was 62.1 mol%. DNA–DNA relatedness between strain DRP 35T and the type strains of the other species of the genus Terriglobus , T. saanensis SP1PR4T and T. roseus KBS63T, were 24.6 and 17.2 %, respectively. The predominant menaquinone was MK-8. Major fatty acids were iso-C15 : 0, C16 : 1ω7c and C16 : 0. The polar lipids were phosphatidylethanolamine, unidentified aminophospholipid and unknown phospholipids. On the basis of polyphasic analysis from this study, strain DRP 35T represents a novel species of the genus Terriglobus for which the name Terriglobus tenax sp. nov. is proposed. The type strain is DRP 35T ( = KACC 16474T = NBRC 109677T).


2012 ◽  
Vol 62 (Pt_7) ◽  
pp. 1536-1542 ◽  
Author(s):  
Ming-Hui Chen ◽  
Shih-Yi Sheu ◽  
Chaolun Allen Chen ◽  
Jih-Terng Wang ◽  
Wen-Ming Chen

A bacterial strain designated SW15T was isolated from a sample of the reef-building coral Isopora palifera, collected in southern Taiwan. The novel strain was characterized using a polyphasic taxonomic approach. Cells of strain SW15T were Gram-negative, aerobic, light yellow, rod-shaped and motile by means of a single polar flagellum. In phylogenetic analyses based on 16S rRNA gene sequences, strain SW15T appeared to belong to the genus Idiomarina in the class Gammaproteobacteria and to be most closely related to Idiomarina homiensis PO-M2T (97.6 % sequence similarity). Strain SW15T exhibited optimal growth between 20 and 30 °C, with NaCl between 3 % and 4 % (w/v) and at a pH value between 7 and 8. Predominant cellular fatty acids were iso-C15 : 0 (31.1 %), iso-C17 : 0 (15.4 %), iso-C17 : 1ω9c (10.0 %) and C16 : 0 (8.8 %). The major respiratory quinone was ubiquinone Q-8. The polar lipid profile consisted of a mixture of phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylserine, an uncharacterized aminolipid and several uncharacterized phospholipids. The DNA G+C content was 51.1 mol%. The level of DNA–DNA relatedness between strain SW15T and Idiomarina homiensis PO-M2T was 42.6–56.5 %. The results of physiological and biochemical tests allowed the clear phenotypic differentiation of the novel strain from established species of the genus Idiomarina . Based on the genotypic, phenotypic and chemotaxonomic data, strain SW15T represents a novel species in the genus Idiomarina , for which the name Idiomarina aquimaris sp. nov. is proposed, with SW15T ( = LMG 25374T = BCRC 80083T) as the type strain.


2013 ◽  
Vol 63 (Pt_4) ◽  
pp. 1557-1561 ◽  
Author(s):  
Ying Liu ◽  
Jing-Hua Jin ◽  
Hong-Can Liu ◽  
Zhi-Pei Liu

A Gram-staining-negative, non-endospore-forming, non-flagellated, non-motile and rod-shaped bacterium, designated strain LM2-5T, was isolated from activated sludge in a sequencing batch reactor used for the treatment of triphenylmethane dye effluent. The taxonomy of strain LM2-5T was studied by phenotypic, chemotaxonomic and phylogenetic methods. Strain LM2-5T was aerobic, heterotrophic and positive for oxidase but negative for catalase activity. It grew at 16–37 °C (optimum 25 °C) and at pH 5.0–8.5 (optimum between pH 6.5 and pH 7.0). NaCl was not obligatory for growth but was tolerated at concentrations up to 2.0 % (w/v) NaCl. The novel strain formed yellow colonies on trypticase soy agar. Cells of strain LM2-5T were rods that measured 0.3–0.5 µm in width and 3.0–5.0 µm in length. The predominant respiratory quinone was Q-8. The major fatty acids were iso-C15 : 0 and iso-C17 : 1ω9c. The genomic DNA G+C content was 66.7 mol%. In phylogenetic analyses based on 16S rRNA gene sequences, strain LM2-5T clustered with members of the genus Dokdonella and appeared most closely related to Dokdonella koreensis DS-123T (96.4 % sequence similarity), Dokdonella fugitiva A3T (96.1 %), Dokdonella soli KIS28-6T (95.7 %) and Dokdonella ginsengisoli Gsoil 191T (95.7 %). On the basis of the phenotypic, chemotaxonomic and phylogenetic data, strain LM2-5T was considered to represent a novel species of the genus Dokdonella , for which the name Dokdonella immobilis is proposed. The type strain is LM2-5T ( = CGMCC 1.7659T  = JCM 15763T).


2020 ◽  
Vol 70 (3) ◽  
pp. 1924-1930 ◽  
Author(s):  
Jun Heo ◽  
Hayoung Cho ◽  
Moriyuki Hamada ◽  
Jeong-Seon Kim ◽  
Seung-Beom Hong ◽  
...  

A bacterium that was Gram-staining-positive, facultatively anaerobic, non-motile, rod- or filamentous-shaped, designated as strain 2JSPR-7T, was isolated from a gut of larvae of Allomyrina dichotoma which were raised at the National Institute of Agricultural Sciences, Wanju-gun, Republic of Korea. 2JSPR-7T had the highest 16S rRNA gene sequence similarity to Xylanibacterium ulmi XIL08T (98.1 %), Xylanimicrobium pachnodae NBRC 107786T (97.8 %) and Xylanimonas cellulosilytica DSM 15894T (97.5 %). Optimum growth conditions were at 28–30 °C, pH 7–8 and 0 % salt concentration. The cellular fatty acids mainly consisted of anteiso-C15 : 0, C14 : 0 and C16 : 0. The polar lipids were diphosphatidylglycerol, four unidentified phospholipids and two unidentified glycophospholipids. The major menaquinones were MK-8(H4) and MK-9(H4). The peptidoglycan structure was suggested to be the type A3α (A11.14) l-Lys–l-Ser with the presence of d-Ala, l-Ala, d-Glu, l-Ser and l-Lys. Whole cell sugars were rhamnose, ribose and glucose. The DNA G+C content was 72.7 mol%. We encountered difficulty in selecting a suitable genus to accommodate strain 2JSPR-7T from any of the genera Xylanimonas , Xylanimicrobium and Xylanibacterium based on the polyphasic approach including phylogenetic and phenotypic characterization. Therefore, it is proposed to combine the genera Xylanimicrobium and Xylanibacterium with the genus Xylanimonas considering the priority of publication and to classify strain 2JSPR-7T in the genus as Xylanimonas allomyrinae sp. nov. The type strain of the novel species is 2JSPR-7T (=KACC 19330T=NBRC 113052T). In addition, the description of the genus Xylanimonas is emended, and Xylanibacterium ulmi and Xylanimicrobium pachnodae are reclassified as Xylanimonas ulmi comb. nov. and Xylanimonas pachnodae comb. nov., respectively.


2012 ◽  
Vol 62 (Pt_6) ◽  
pp. 1259-1264 ◽  
Author(s):  
Ming-Hui Chen ◽  
Shih-Yi Sheu ◽  
Chaolun Allen Chen ◽  
Jih-Terng Wang ◽  
Wen-Ming Chen

A bacterial strain, isolated from a sample of reef-building coral (Isopora palifera) collected off the coast of southern Taiwan, was characterized using a polyphasic taxonomic approach. The strain, designated sw-2T, was Gram-staining-negative, aerobic, rod-shaped and motile, with subpolar flagella, and formed greyish pink colonies. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain sw-2T was most closely related to Roseivivax halodurans Och 239T (97.4 % sequence similarity) and Roseivivax halotolerans Och 210T (96.4 %). The novel strain did not require NaCl for growth and exhibited optimal growth at 35–40 °C, at pH 7.5–8.0 and with 3–7 % (w/v) NaCl. It produced bacteriochlorophyll a under aerobic conditions. Summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c; 63.7 %) predominated in the cellular fatty acid profile. The novel strain’s major respiratory quinone was ubiquinone Q-10 and its genomic DNA G+C content was 68.8 mol%. The polar lipid profile consisted of a mixture of phosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, diphosphatidylglycerol, phosphatidyldimethylethanolamine, sulfo-quinovosyl diacylglycerol and three uncharacterized phospholipids. The level of DNA–DNA relatedness between strain sw-2T and Roseivivax halodurans Och 239T was only 15.0 %. The results of physiological and biochemical tests allowed the clear phenotypic differentiation of the novel strain from all established species of the genus Roseivivax . Based on the genotypic, phenotypic and chemotaxonomic data, strain sw-2T represents a novel species in the genus Roseivivax , for which the name Roseivivax isoporae sp. nov. is proposed. The type strain is sw-2T ( = LMG 25204T = BCRC 17966T).


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