scholarly journals Asticcacaulis endophyticus sp. nov., a prosthecate bacterium isolated from the root of Geum aleppicum

2014 ◽  
Vol 64 (Pt_12) ◽  
pp. 3964-3969 ◽  
Author(s):  
Lingfang Zhu ◽  
Mingxiu Long ◽  
Meiru Si ◽  
Linfang Wei ◽  
Changfu Li ◽  
...  

A strictly aerobic, light-yellow-coloured, stalked bacterium, designated strain ZFGT-14T, was isolated from the root of Geum aleppicum Jacq. collected from Taibai Mountain in Shaanxi province, north-west China, and was subjected to a taxonomic study using a polyphasic approach. This novel isolate grew at 7–33 °C (optimum 25–28 °C) and pH 6.0–10.0 (optimum pH 7.0–8.0). Flexirubin-type pigments were not produced. Cells were Gram-stain-negative, rod-shaped and motile with a single polar flagellum. The predominant respiratory quinone was Q-10. The major cellular fatty acids were summed feature 8 (comprising C18 : 1ω7c/C18 : 1ω6c), C16 : 0, C19 : 0 cyclo ω8c and summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c) and the major polar lipids were phosphatidylglycerol and glycolipids. The DNA G+C content was 57.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain ZFGT-14T was most closely related to the genus Asticcacaulis and had low sequence similarity (95.0–95.9 %) with all species with validly published names within the genus Asticcacaulis . Based on the phenotypic, phylogenetic and genotypic data, strain ZFGT-14T is considered to represent a novel species of the genus Asticcacaulis , for which the name Asticcacaulis endophyticus sp. nov. is proposed. The type strain is ZFGT-14T ( = CCTCC AB 2013012T = KCTC 32296T = LMG 27605T).

2014 ◽  
Vol 64 (Pt_8) ◽  
pp. 2805-2811 ◽  
Author(s):  
Zhang Zhen-Li ◽  
Zhang Xin-Qi ◽  
Wu Nan ◽  
Zhang Wen-Wu ◽  
Zhu Xu-Fen ◽  
...  

A thermotolerant, Gram-strain-negative, non-spore-forming and strictly aerobic bacterium, designated GU51T, was isolated from Guhai hot spring in Jimsar county, Xinjiang province, north-west China. Each cell of strain GU51T consisted of an oval body and two symmetrical long (3–6 µm) prosthecae. The strain moved by polar flagellum. Oxidase and catalase were produced. Strain GU51T grew within the ranges of 37–65 °C (optimum 48–50 °C), 0.5–7.5 % (w/v) NaCl (optimum 2–3 %) and pH 6.0–9.0 (optimum pH 7.5). The major respiratory quinone detected was ubiquinone 10 (U-10) and the genomic DNA G+C content was 66.7±0.4 mol%. Major fatty acids (>5 %) were C16 : 0, C18 : 1ω7c and 11-methyl C18 : 1ω7c. The polar lipids consisted of diphosphatidylglycerol, five glycolipids, phosphatidylglycerol and an unknown phospholipid. Phylogenetic analysis showed the closest relatives of strain GU51T were members of the genus Parvularcula with 92.3 % 16S rRNA gene sequence similarity. On the basis of this polyphasic taxonomic characterization, it is suggested that strain GU51T represents a novel species of a new genus in the family ‘ Parvularculaceae ’, for which the name Amphiplicatus metriothermophilus gen. nov., sp. nov. is proposed. The type strain of the type species is GU51T ( = CGMCC 1.12710T = JCM 19779T).


2014 ◽  
Vol 64 (Pt_1) ◽  
pp. 122-127 ◽  
Author(s):  
Tong Yu ◽  
Zenghu Zhang ◽  
Xiaoyang Fan ◽  
Xiaochong Shi ◽  
Xiao-Hua Zhang

A novel Gram-stain-negative, rod-shaped, non-flagellated, strictly aerobic strain with gliding motility, designated XH134T, was isolated from surface seawater of the South Pacific Gyre (45° 58′ S 163° 11′ W) during the Integrated Ocean Drilling Program Expedition 329. The major respiratory quinone of strain XH134T was MK-6. The dominant fatty acids of strain XH134T were iso-C15 : 0, iso-C15 : 1 G, C16 : 1ω6c and/or C16 : 1ω7c, iso-C17 : 0 3-OH, iso-C15 : 0 3-OH and 10-methyl C16 : 0 and/or iso-C17 : 1ω9c. The polar lipids of strain XH134T comprised phosphatidylethanolamine, one unknown aminolipid and three unknown polar lipids. The DNA G+C content of strain XH134T was 32.4 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that the novel strain was related most closely to Aquimarina macrocephali JAMB N27T with 96.9 % sequence similarity. A number of phenotypic characteristics distinguished strain XH134T from described members of the genus Aquimarina . On the basis of combined phenotypic and phylogenetic analyses, strain XH134T represents a novel species of the genus Aquimarina , for which the name Aquimarina megaterium sp. nov. is proposed. The type strain is XH134T ( = CGMCC 1.12186T = JCM 18215T).


Author(s):  
Qin Ma ◽  
Rui-Feng Lei ◽  
Yu-Qian Li ◽  
Dilireba Abudourousuli ◽  
Zulihumaer Rouzi ◽  
...  

A bacterial strain, designated YZGR15T, was isolated from the root of an annual halophyte Suaeda aralocaspica, collected from the southern edge of the Gurbantunggut desert, north-west PR China. Cells of the isolate were Gram-stain-positive, facultatively anaerobic, irregular rods. Growth occurred at 4–42 °C (optimum, 30–37 °C), at pH 6.0–9.0 (optimum, pH 7.0–7.5) and in the presence of 0–9 % (w/v) NaCl (optimum, 2–5 %). Phylogenetic analysis using 16S rRNA gene sequences indicated that strain YZGR15T showed the highest sequence similarity to Sanguibacter keddieii (98.27 %), Sanguibacter antarcticus (98.20 %) and Sanguibacter inulinus (98.06 %). Results of genome analyses of strain YZGR15T indicated that the genome size was 3.16 Mb, with a genomic DNA G+C content of 71.9 mol%. Average nucleotide identity and digital DNA–DNA hybridization values between strain YZGR15Tand three type strains were in the range of 76.5–77.8 % and 20.0–22.2 %, respectively. Analysis of the cellular component of strain YZGR15T revealed that the primary fatty acids were anteiso-C15 : 0, C16 : 0, C14 : 0 and iso-C16 : 0 and the polar lipids included diphosphatidylglycerol, phosphatidylglycerol, three unidentified phospholipids and two unidentified glycolipids. The cell-wall characteristic amino acids were glutamic acid, alanine and an unknown amino acid. The whole-cell sugars for the strain were mannose, ribose, rhamnose, glucose and an unidentified sugar. The predominant respiratory quinone was MK-9(H4). Based on the results of genomic, phylogenetic, phenotypic and chemotaxonomic analyses, strain YZGR15T represents a novel species of the genus Sanguibacter , for which the name Sanguibacter suaedae sp. nov. is proposed. The type strain is YZGR15T (=CGMCC 1.18691T=KCTC 49659T)


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).


2013 ◽  
Vol 63 (Pt_2) ◽  
pp. 703-708 ◽  
Author(s):  
Dong-Heon Lee ◽  
Sun Ja Cho ◽  
Suk Min Kim ◽  
Sun Bok Lee

A novel bacterium, designated strain F051-1T, isolated from a seawater sample collected from the coast at Damupo beach in Pohang, Korea, was investigated in a polyphasic taxonomic study. Cells were yellow-pigmented, strictly aerobic, Gram-staining-negative and rod-shaped. The temperature, pH and NaCl ranges for growth were 4–30 °C, pH 6.0–9.0 and 1.0–6.0 % (w/v), respectively. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain F051-1T belongs to the genus Psychroserpens in the family Flavobacteriaceae . Its closest relatives were Psychroserpens burtonensis ACAM 188T (96.8 % 16S rRNA gene sequence similarity) and Psychroserpens mesophilus KOPRI 13649T (95.7 %). The major cellular fatty acids were iso-C15 : 0, iso-C15 : 1 G and anteiso-C15 : 0. The polar lipid profile consisted of a mixture of phosphatidylethanolamine, two unidentified aminolipids, one unidentified phospholipid and eight unidentified lipids. The major respiratory quinone was menaquinone-6 and the genomic DNA G+C content of the strain was 33.5 mol%. On the basis of phenotypic, phylogenetic and genotypic data, strain F051-1T represents a novel species within the genus Psychroserpens , for which the name Psychroserpens damuponensis sp. nov. is proposed. The type strain is F051-1T ( = KCTC 23539T  = JCM 17632T).


2014 ◽  
Vol 64 (Pt_4) ◽  
pp. 1264-1270 ◽  
Author(s):  
Heike Anders ◽  
Peter F. Dunfield ◽  
Kirill Lagutin ◽  
Karen M. Houghton ◽  
Jean F. Power ◽  
...  

A strictly aerobic, thermophilic, moderately acidophilic, non-spore-forming bacterium, strain P373T, was isolated from geothermally heated soil at Waikite, New Zealand. Cells were filamentous rods, 0.2–0.4 µm in diameter and grew in chains up to 80 µm in length. On the basis of 16S rRNA gene sequence similarity, strain P373T was shown to belong to the family Chitinophagaceae (class Sphingobacteriia ) of the phylum Bacteroidetes , with the most closely related cultivated strain, Chitinophaga pinensis UQM 2034T, having 87.6 % sequence similarity. Cells stained Gram-negative, and were catalase- and oxidase-positive. The major fatty acids were i-15 : 0 (10.8 %), i-17 : 0 (24.5 %) and i-17 : 0 3-OH (35.2 %). Primary lipids were phosphatidylethanolamine, two unidentified aminolipids and three other unidentified polar lipids. The presence of sulfonolipids (N-acyl-capnines) was observed in the total lipid extract by mass spectrometry. The G+C content of the genomic DNA was 47.3 mol% and the primary respiratory quinone was MK-7. Strain P373T grew at 35–63 °C with an optimum temperature of 60 °C, and at pH 5.5–8.7 with an optimum growth pH of 7.3–7.4. NaCl tolerance was up to 5 % (w/v) with an optimum of 0.1–0.25 % (w/v). Cell colonies were non-translucent and pigmented vivid yellow–orange. Cells displayed an oxidative chemoheterotrophic metabolism. The distinct phylogenetic position and the phenotypic characteristics separate strain P373T from all other members of the phylum Bacteroidetes and indicate that it represents a novel species in a new genus, for which the name Thermoflavifilum aggregans gen. nov., sp. nov. is proposed. The type strain of the type species is P373T ( = ICMP 20041T = DSM 27268T).


2012 ◽  
Vol 62 (Pt_7) ◽  
pp. 1528-1535 ◽  
Author(s):  
Dong-Heon Lee ◽  
Sun Ja Cho ◽  
Suk Min Kim ◽  
Sun Bok Lee

A Gram-staining-negative, strictly aerobic, non-motile, yellow-pigmented bacterium, designated strain M091T, was isolated from seawater at Damupo beach in Pohang, Republic of Korea, and investigated using a polyphasic taxonomic approach. The novel strain grew optimally at 25 °C, pH 7.0–8.0, and in the presence of 3 % (w/v) NaCl. In a phylogenetic analysis based on 16S rRNA gene sequences, strain M091T formed a lineage within the family Flavobacteriaceae that was distinct from the most closely related genera of Flaviramulus (95.1 % sequence similarity), Algibacter (94.9–93.9 %), Mariniflexile (94.8–94.2 %), Winogradskyella (94.8–93.2 %), Lacinutrix (94.7–93.8 %) and Tamlana (94.7–92.9 %). The polar lipid profile of the novel strain comprised phosphatidylethanolamine, two unidentified aminolipids, one unidentified phospholipid and seven unidentified lipids. The predominant cellular fatty acids were iso-C15 : 0 (20.5 %), iso-C17 : 0 3-OH (15.4 %), iso-C15 : 0 3-OH (12.4 %), C15 : 0 (10.9 %) and iso-C15 : 1 G (9.9 %). The genomic DNA G+C content of strain M091T was 34.4 mol% and the major respiratory quinone was MK-6. Based on phenotypic and genotypic data, strain M091T represents a new genus and novel species in the family Flavobacteriaceae , for which the name Postechiella marina gen. nov., sp. nov. is proposed. The type strain of the type species is M091T ( = KCTC 23537T = JCM 17630T).


2012 ◽  
Vol 62 (Pt_8) ◽  
pp. 2018-2024 ◽  
Author(s):  
Joong-Jae Kim ◽  
Eiko Kanaya ◽  
Hang-Yeon Weon ◽  
Yuichi Koga ◽  
Kazufumi Takano ◽  
...  

A strictly aerobic, Gram-negative, yellow-pigmented, non-spore-forming rod, designated 15C3T, was isolated from aerobic leaf-and-branch compost at EXPO Park in Osaka, Japan. Growth was observed at 9–33 °C (optimum 25 °C) and pH 5.6–7.9 (optimum pH 6.1–7.0). No growth occurred with >2 % (w/v) NaCl. Strain 15C3T reduced nitrate to nitrogen and showed catalase activity but not oxidase activity. The predominant fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH and summed feature 3 (comprising C16 : 1ω7c and/or iso-C15 : 0 2-OH). The isolate contained phosphatidylethanolamine as the major polar lipid and menaquinone-6 as the major respiratory quinone. The G+C content of the genomic DNA of strain 15C3T was 33.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain 15C3T belonged to the genus Flavobacterium and was most closely related to Flavobacterium hercynium WB 4.2-33T (96.9 % sequence similarity). On the basis of phenotypic and phylogenetic distinctiveness, strain 15C3T is considered to represent a novel species in the genus Flavobacterium , for which the name Flavobacterium compostarboris sp. nov. is proposed. The type strain is 15C3T ( = KACC 14224T  = JCM 16527T). Emended descriptions of F. hercynium , Flavobacterium resistens and Flavobacterium johnsoniae are also given.


2015 ◽  
Vol 65 (Pt_4) ◽  
pp. 1127-1132 ◽  
Author(s):  
Jing Liang ◽  
Ji Liu ◽  
Xiao-Hua Zhang

A Gram-stain-negative, strictly aerobic and rod-shaped motile bacterium with peritrichous flagella, designated strain LZB041T, was isolated from offshore surface seawater of the East China Sea. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain LZB041T formed a lineage within the family ‘ Aurantimonadaceae ’ that was distinct from the most closely related genera Aurantimonas (96.0–96.4 % 16S rRNA gene sequence similarity) and Aureimonas (94.5–96.0 %). Optimal growth occurred in the presence of 1–7 % (w/v) NaCl, at pH 7.0–8.0 and at 28–37 °C. Ubiquinone-10 was the predominant respiratory quinone. The major fatty acids (>10 % of total fatty acids) were C18 : 1ω7c and/or C18 : 1ω6c (summed feature 8) and cyclo-C19 : 0ω8c. The major polar lipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylmonomethylethanolamine, one unknown aminolipid, one unknown phospholipid and one unknown polar lipid. The DNA G+C content of strain LZB041T was 71.3 mol%. On the basis of polyphasic analysis, strain LZB041T is considered to represent a novel species of a new genus in the class Alphaproteobacteria , for which the name Jiella aquimaris gen. nov., sp. nov. is proposed. The type strain of the type species is LZB041T ( = JCM 30119T = MCCC 1K00255T).


Author(s):  
Masataka Kanamuro ◽  
Yuki Sato-Takabe ◽  
So Muramatsu ◽  
Setsuko Hirose ◽  
Yuki Muramatsu ◽  
...  

A strictly aerobic, bacteriochlorophyll (BChl) a-containing alphaproteobacterium, designated strain K6T, was isolated from seawater around an aquaculture site in the Uwa Sea in Japan. The novel strain grew optimally at 30 °C at pH 7.0–7.5 and in the presence of 2.0 % (w/v) NaCl. The nonmotile and coccoid or rod-shaped cells formed pink-pigmented colonies on agar plates containing organic compounds. Cells showed an in vivo absorption maximum at 870 nm in the near-infrared region, indicating the presence of BChl a in the light-harvesting 1 complex. The new bacterial strain was Gram-stain-negative and oxidase- and catalase-positive. Phylogenetic analysis based on the 16S rRNA gene sequence showed that strain K6T was closely related to species in the genus Litoreibacter . The closest phylogenetic relatives of strain K6T were Litoreibacter ponti GJSW-31T (98.56 % sequence similarity), Litoreibacter janthinus KMM 3842T (97.63 %) and Litoreibacter albidus KMM 3851T (96.88 %). The G+C content of the genomic DNA was 58.26 mol%. The average nucleotide identity value of strain K6T with the type strain of L. ponti was 77.16 % (SD 4.79 %). The digital DNA−DNA hybridization value of strain K6T with the type strain of L. ponti was 19.40 %. The respiratory quinone was ubiquinone-10. The major cellular fatty acids were C18 : 1 ω7c, C16 : 0 and 11-methyl C18 : 1 ω7c. The dominant polar lipids were phosphatidylcholine and phosphatidylglycerol. On the basis of the genetic and phenotypic data obtained in the present study, we propose a new species in the genus Litoreibacter : Litoreibacter roseus sp. nov., whose type strain is K6T (=DSM 110109T=NBRC 114114T). Strain K6T represents the first confirmed species that produces BChl a within the genus Litoreibacter .


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