scholarly journals Fodinibius salinus gen. nov., sp. nov., a moderately halophilic bacterium isolated from a salt mine

2012 ◽  
Vol 62 (2) ◽  
pp. 390-396 ◽  
Author(s):  
Yong-Xia Wang ◽  
Ji-Hui Liu ◽  
Wei Xiao ◽  
Xiao-Xia Zhang ◽  
Yi-Qing Li ◽  
...  

A novel, moderately halophilic, rod-shaped bacterium, designated strain YIM D17T, was isolated from a sample of sediment from a salt mine in Yunnan, south-western China. The taxonomy of strain YIM D17T was investigated using a polyphasic approach. Strain YIM D17T was Gram-stain-negative, strictly aerobic and non-motile and formed pink colonies on marine agar. Optimal growth occurred at 37 °C, pH 7.5–8.0 and in the presence of 10–15 % (w/v) NaCl. The major menaquinone was MK-7. The polar lipid profile was composed predominantly of diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, one phospholipid, one glycolipid and one aminolipid. Minor amounts of other lipids were also detectable. The predominant cellular fatty acids were iso-C17 : 1ω9c/10-methyl-C16 : 0 (24.0 %), iso-C15 : 0 (23.6 %) and C16 : 1ω7c/C16 : 1ω6c (13.8 %). The DNA G+C content was 43.0 mol%. Phylogenetic analysis based on 16S rRNA gene sequence comparisons showed that the isolate formed a distinct clade with the genera Gracilimonas and Balneola (both in the phylum Bacteroidetes) and was related to the species Gracilimonas tropica, Balneola vulgaris and Balneola alkaliphila, with sequence similarities of 85.6 %, 83.0 % and 82.8 % to the respective type strains. On the basis of its phenotypic, chemotaxonomic and phylogenetic features, strain YIM D17T represents a novel species of a new genus, for which the name Fodinibius salinus gen. nov., sp. nov. is proposed. The type strain is YIM D17T ( = ACCC 10716T = DSM 21935T).

2013 ◽  
Vol 63 (Pt_3) ◽  
pp. 844-848 ◽  
Author(s):  
Maryam Bagheri ◽  
Mohammad Ali Amoozegar ◽  
Peter Schumann ◽  
Maryam Didari ◽  
Malihe Mehrshad ◽  
...  

A novel Gram-stain-positive, moderately halophilic bacterium, designated strain G8BT, was isolated from water of the hypersaline lake Aran-Bidgol in Iran and characterized taxonomically using a polyphasic approach. Cells of strain G8BT were rod-shaped, motile and produced oval endospores at a terminal position in swollen sporangia. Strain G8BT was strictly aerobic, catalase-positive and oxidase-negative. The strain was able to grow at NaCl concentrations of 0.5–12.5 % (w/v), with optimum growth occurring at 5–7.5 % (w/v) NaCl. The optimum temperature and pH for growth were 35–40 °C and pH 7.5–8.0, respectively. On the basis of 16S rRNA gene sequence analysis, strain G8BT was shown to belong to the genus Ornithinibacillus within the phylum Firmicutes and showed closest phylogenetic similarity with Ornithinibacillus bavariensis WSBC 24001T (97.6 %). The DNA G+C content of strain G8BT was 36.9 mol%. The major cellular fatty acids of strain G8BT were anteiso-C15 : 0, anteiso-C17 : 0, iso-C15 : 0 and iso-C16 : 0, and its polar lipid pattern consisted of phosphatidylglycerol, diphosphatidylglycerol, four unknown phospholipids and an unknown aminolipid. The isoprenoid quinones were MK-7 (98 %) and MK-8 (2 %). Strain G8BT contained a peptidoglycan of type A4β, l-Orn–d-Asp. All these features confirmed the placement of isolate G8BT within the genus Ornithinibacillus . DNA–DNA hybridization experiments revealed a low level of relatedness (6 %) between strain G8BT and Ornithinibacillus bavariensis DSM 15681T. On the basis of evidence from this study, a novel species of the genus Ornithinibacillus , Ornithinibacillus halophilus sp. nov., is proposed, with strain G8BT ( = IBRC-M 10683T = KCTC 13822T) as the type strain.


2015 ◽  
Vol 65 (Pt_4) ◽  
pp. 1354-1359 ◽  
Author(s):  
Carmen Infante-Domínguez ◽  
Cristina Sánchez-Porro ◽  
Antonio Ventosa

A yellow-pigmented, motile, Gram-stain-negative, moderately halophilic and strictly aerobic bacterium, designated BA42AL-1T, was isolated from water of a saltern of Santa Pola, Alicante, Spain. Strain BA42AL-1T grew in media containing 5–20 % (w/v) salts (optimum 7.5 % salts). It grew between pH 6.0 and 9.0 (optimally at pH 7.5) and at 15–45 °C (optimally at 37 °C). Phylogenetic analysis based on the comparison of 16S rRNA gene sequences revealed that strain BA42AL-1T is a member of the genus Aquisalimonas . The closest relatives to this strain were Aquisalimonas halophila YIM 95345T and Aquisalimonas asiatica CG12T with sequence similarities of 99.4 % and 97.0 %, respectively. DNA–DNA hybridization between the novel isolate and Aquisalimonas halophila YIM 95345T revealed a relatedness of 54 %. The major fatty acids of strain BA42AL-1T were C18 : 1ω6c/C18 : 1ω7c, C19 : 0 cyclo ω8c and C16 : 0, and lower contents of C12 : 0 and C18 : 0. The polar lipid pattern of strain BA42AL-1T consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylmethylethanolamine, phosphatidylcholine, two glycolipids, a lipid and four unknown phospholipids. The G+C content of the genomic DNA of this strain was 65.0 mol%. Based on the DNA–DNA hybridization, phenotypic, chemotaxonomic and phylogenetic data presented in this study, strain BA42AL-1T is proposed as a novel species of the genus Aquisalimonas , for which the name Aquisalimonas lutea sp. nov. is suggested. The type strain is BA42AL-1T ( = CCM 8472T = CECT 8326T = LMG 27614T).


2015 ◽  
Vol 65 (Pt_12) ◽  
pp. 4434-4440 ◽  
Author(s):  
Su-Jin Kim ◽  
Jae-Chan Lee ◽  
Song-Ih Han ◽  
Kyung-Sook Whang

A Gram-staining-positive, moderately halophilic bacterium, designated strain NGS-2T, was isolated from sediment of a solar saltern pond located in Shinan, Korea. Strain NGS-2T was a strictly aerobic, non-motile rod that grew at pH 5.0–10.0 (optimum, pH 8.0), at 10–30 °C (optimum, 28 °C) and in the presence of 1–20 % (w/v) NaCl (optimum, 10 % NaCl). Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain NGS-2T belonged to the genus Halobacillus, with sequence similarity of 98.4–95.8 % to existing type strains, showing the highest sequence similarity to Halobacillus dabanensis D-8T (98.4 %), H. litoralis SL-4T (98.4 %), H. trueperi SL-5T (98.2 %), H. faecis IGA7-4T (98.2 %), H. profundi IS-Hb4T (98.1 %) and H. mangrovi MS10T (98.0 %). The major polar lipids were phosphatidylglycerol, phosphatidylethanolamine, phosphatidyl-N-methylethanolamine and an unknown glycolipid. The cell-wall peptidoglycan was based on l-Orn–d-Asp, the predominant isoprenoid quinone was menaquinone 7 (MK-7) and the major fatty acids were anteiso-C15: 0 and anteiso-C17: 0. The DNA G+C content of the novel isolate was 45.0 mol%. Levels of DNA–DNA relatedness between strain NGS-2T and the type strains of 12 other species of the genus ranged from 32 to 3 %. On the basis of the polyphasic analysis conducted in this study, strain NGS-2T represents a novel species of the genus Halobacillus, for which the name Halobacillus sediminis sp. nov. is proposed. The type strain is NGS-2T ( = KACC 18263T = NBRC 110639T).


2014 ◽  
Vol 64 (Pt_7) ◽  
pp. 2210-2216 ◽  
Author(s):  
Yun-Jiao Zhang ◽  
Man Jia ◽  
Yong-Chun Ma ◽  
Kai-Yang Lu ◽  
Fei Tian ◽  
...  

A Gram-negative, moderately halophilic, strictly aerobic strain, designated YIM 95345T, was isolated from a soil sample of a hypersaline mine in Yunnan province, PR China, and subjected to a polyphasic taxonomic study. Strain YIM 95345T grew at 15–45 °C (optimum 30–35 °C), 3.0–23.0 % (w/v) NaCl (optimum 10.0–11.0 %, w/v) and pH 6.0–9.0 (optimum pH 7.0–8.0). Phylogenetic analyses based on 16S rRNA gene sequences revealed that the organism belongs to the genus Aquisalimonas and exhibited sequence similarity of 96.6 % to the sole type strain Aquisalimonas asiatica CG12T. The predominant isoprenoid quinone was Q-8 and the major fatty acids were C16 : 0, C19 : 0 cyclo ω8c and C18 : 1ω7c. The polar lipids consisted of diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol, three aminolipids and three unidentified phospholipids. The G+C content of the genomic DNA was 59.4 mol%. Based on the results of our comparative phylogenetic, chemotaxonomic and physiological analyses, the new isolate is assigned to a novel species of the genus Aquisalimonas , for which the name Aquisalimonas halophila sp. nov. is proposed, with the type strain YIM 95345T ( = DSM 25902T = CCTCC AB 2012043T).


2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 1964-1969 ◽  
Author(s):  
Mohammad Ali Amoozegar ◽  
Maryam Bagheri ◽  
Ali Makhdoumi-Kakhki ◽  
Maryam Didari ◽  
Peter Schumann ◽  
...  

A novel Gram-staining-positive, moderately halophilic bacterium, designated strain A76T, was isolated from a brine sample of the hypersaline lake Aran-Bidgol in Iran. Cells were strictly aerobic, coccus-shaped, non-motile, non-sporulating, and catalase- and oxidase-positive. Strain A76T grew between pH 7.0 and 10.0 (optimal growth at pH 8.0), between 20 and 45 °C (optimal growth at 35 °C) and at salinities of 0.5 to 12.5 % (w/v) NaCl (optimal growth at 7.5 %, w/v, NaCl). On the basis of 16S rRNA gene sequence analysis, strain A76T was shown to belong to the phylum Firmicutes with sequence similarities of 94.1, 93.1 and 91.1 %, to the type species of the genera Jeotgalicoccus , Salinicoccus and Nosocomiicoccus , respectively. The DNA G+C content of this new isolate was 38.8 mol%. The major cellular fatty acids of strain A76T were anteiso-C15 : 0 and iso-C15 : 0, and its polar lipid pattern consisted of diphosphatidylglycerol, phosphatidylglycerol, a glycolipid, an unknown lipid and two unknown phospholipids. The isoprenoid quinones were MK-6 (94 %), MK-5 (3 %) and MK-7 (3 %). The amino acid constituents of the cell wall were Lys, Asp, Gly, Glu and Ala. The physiological, biochemical and phylogenetic differences between strain A76T and type strains of taxa with validly published names suggest that this strain represents a novel species in a novel genus within the family Staphylococcaceae , for which the name Aliicoccus persicus gen. nov., sp. nov. is proposed. The type strain of Aliicoccus persicus is strain A76T ( = CECT 8508T = DSM 28306T = IBRC-M 10081T).


2012 ◽  
Vol 518-523 ◽  
pp. 16-22
Author(s):  
Wei Guo Li ◽  
Fang Ma ◽  
Song Wen Tan ◽  
Li Wei ◽  
Zhong Xu ◽  
...  

A Gram-positive, strictly aerobic, spore-bearing and moderately halophilic bacterial strain HNPHT was obtained from the sea mud sample collected from Jinhaitan Park in Weihai, a city on the shore of the Yellow Sea. Strain HNPHT was bacillus. The optimum growth temperature was 30-36°C and the optimum pH was 6.5-9.5. It could grow well at 5-20% salt concentration. The G+C content of its genomic DNA was 37.0%. 16S rRNA gene sequence indicated a close relationship to Alkalibacillus halophilus (DQ359731) and Alkalibacillus salilacus (AY671976) with similarity of 99%. However, they had obvious difference in whole-cell main fatty acid components, cell size, cell morphology, colony color, motility, oxidase, gelatine liquification, nitrate reduction, NaCl tolerance range, pH tolerance range, G+C mole fraction, sole carbon source, sole nitrogen source, antibiotic sensitivity and a source of the strain isolation. A comparison of these taxonomic characters of strain HNPHT with those of some type strains of the genus Alkalibacillus indicated that the strain could be distinguished from A. halophilus and A. salilacus. In view of multiple identification results, it was proposed that strain HNPHT was classified as the type strain of a new species of the genus Alkalibacillus under the name Alkalibacillus weihaiensis sp. nov..


2010 ◽  
Vol 60 (12) ◽  
pp. 2763-2767 ◽  
Author(s):  
Xiaowei Wang ◽  
Yanfen Xue ◽  
Yanhe Ma

A Gram reaction-positive, moderately halophilic bacterium, designated H57B72T, was isolated from subsurface saline soil of Qaidam basin in the Qinghai province, China. Cells were rod-shaped, strictly aerobic, spore-forming and motile. The isolate grew optimally at 9 % (w/v) NaCl, pH 7.5 and 30 °C. The cell-wall peptidoglycan of strain H57B72T contained meso-diaminopimelic acid as the diagnostic diamino acid. The predominant isoprenoid quinone was MK-7. The major cellular fatty acids were anteiso-C15 : 0 (59.97 %) and anteiso-C17 : 0 (17.14 %). Phosphatidylglycerol, diphosphatidylglycerol and a glycolipid were found to be the predominant polar lipids. The genomic DNA G+C content of strain H57B72T was 37.1 mol%. 16S rRNA gene sequence analysis showed that strain H57B72T was a member of the genus Virgibacillus and was most closely related to Virgibacillus salinus DSM 21756T (98.3 % gene sequence similarity). The level of DNA–DNA relatedness between strain H57B72T and V. salinus DSM 21756T was 8.5 %. Based on the phenotypic, genotypic and phylogenetic data presented, strain H57B72T represents a novel species, for which the name Virgibacillus subterraneus sp. nov. is proposed. The type strain is H57B72T (=DSM 22441T =CGMCC 1.7734T).


2012 ◽  
Vol 62 (Pt_8) ◽  
pp. 1857-1863 ◽  
Author(s):  
Pankyung Kim ◽  
Jae-Chan Lee ◽  
Dong-Jin Park ◽  
Kee-Sun Shin ◽  
Jeong-Yoon Kim ◽  
...  

A Gram-staining-positive, moderately halophilic bacterium, designated strain BH097T, was isolated from solar saltern soil of Bigeum Island in south-west Korea. Cells were motile rods, producing spherical endospores at a terminal position in swollen sporangia. Strain BH097T was strictly aerobic, grew at pH 5.5–9.5 (optimum, pH 8.0), at 10–52 °C (optimum, 37 °C) and at salinities of 1–22 % (w/v) NaCl (optimum, 7 % NaCl). On the basis of 16S rRNA gene sequence analysis, strain BH097T was shown to belong to the genus Gracilibacillus within the phylum Firmicutes , and showed closest sequence similarity to Gracilibacillus saliphilus DSM 19802T (95.8 %), Gracilibacillus thailandensis TP2-8T (95.6 %), Gracilibacillus boraciitolerans DSM 17256T (95.5 %), ‘Gracilibacillus quinghaiensis’ DSM 17858 (95.4 %) and Gracilibacillus halophilus DSM 17856T (95.2 %). The DNA G+C content of this novel isolate was 37.9 mol%. The major cellular fatty acids of strain BH097T were anteiso-C15 : 0, iso-C15 : 0 and C16 : 0, and its polar lipid pattern consisted of diphosphatidylglycerol, phosphatidylglycerol two unknown phospholipids and a glycolipid. The isoprenoid quinone was MK-7, and the peptidoglycan type was A1γ, with meso-diaminopimelic acid as the diagnostic diamino acid. On the basis of polyphasic evidence from this study, strain BH097T represents a novel species of the genus Gracilibacillus for which the name Gracilibacillus bigeumensis sp. nov. is proposed. The type strain is BH097T ( = KCTC 13130T = DSM 19028T).


2011 ◽  
Vol 61 (5) ◽  
pp. 1206-1210 ◽  
Author(s):  
Cristina Sánchez-Porro ◽  
Pinar Yilmaz ◽  
Rafael R. de la Haba ◽  
Meral Birbir ◽  
Antonio Ventosa

A Gram-positive, moderately halophilic and endospore-forming bacterium, designated strain 18OMT, was isolated from salted animal hides. The cells were rods and produced ellipsoidal endospores at a terminal position. Strain 18OMT was motile, strictly aerobic and grew at 0.5–25 % (w/v) NaCl [optimal growth at 10 % (w/v) NaCl], at between pH 5.0 and 9.0 (optimal growth at pH 7.5) and at temperatures between 15 and 45 °C (optimal growth at 37 °C). Phylogenetic analysis based on 16S rRNA gene sequence comparisons showed that strain 18OMT was closely related to species of the genus Thalassobacillus within the phylum Firmicutes. The closest phylogenetic similarity was with Thalassobacillus devorans G-19.1T (98.4 %), Thalassobacillus cyri HS286T (97.9 %) and Thalassobacillus hwangdonensis AD-1T (97.4 %). The major cellular fatty acids were anteiso-C15 : 0 (57.9 %), anteiso-C17 : 0 (14.0 %), iso-C15 : 0 (10.8 %) and iso-C16 : 0 (8.1 %). The respiratory isoprenoid quinones were MK-7 (98.5 %) and MK-6 (1.5 %). The DNA G+C content was 42.9 mol%. These features confirmed the placement of strain 18OMT within the genus Thalassobacillus. The DNA–DNA hybridization values between strain 18OMT and T. devorans G-19.1T, T. cyri HS286T and T. hwangdonensis AD-1T were 49 %, 9 % and 15 %, respectively, showing unequivocally that strain 18OMT constituted a novel genospecies. On the basis of phylogenetic analysis and phenotypic, genotypic and chemotaxonomic characteristics, strain 18OMT is considered to represent a novel species of the genus Thalassobacillus, for which the name Thalassobacillus pellis sp. nov. is proposed. The type strain is 18OMT ( = CECT 7566T = DSM 22784T = JCM 16412T).


2010 ◽  
Vol 60 (12) ◽  
pp. 2877-2881 ◽  
Author(s):  
Jeong Myeong Kim ◽  
Ji Young Jung ◽  
Ho Byoung Chae ◽  
Woojun Park ◽  
Che Ok Jeon

A moderately halophilic Gram-staining-negative bacterium, designated strain Y26T, was isolated from a tidal flat of Taean coast in South Korea. Cells were strictly aerobic, motile cocci with a single flagellum and showed catalase- and oxidase-positive reactions. Growth of strain Y26T was observed at 15–35 °C (optimum 25–30 °C), pH 6.0–8.0 (optimum pH 6.5–7.5) and with 1.5–6.0 % (w/v) NaCl (optimum 2.0–3.0 %). The predominant fatty acids were C18 : 1 ω7c (66.2 %), C16 : 0 (12.4 %) and C10 : 0 3-OH (5.0 %) and the G+C content of the genomic DNA was 61.0 mol%. Strain Y26T contained ubiquinone-10 (Q-10) as the major respiratory quinone. Comparative 16S rRNA gene sequence analysis showed that strain Y26T formed a distinct phyletic lineage from other genera within the Roseobacter clade of the class Alphaproteobacteria and was most closely related to members of the genera Maribius, Maritimibacter and Palleronia with 93.8–94.6 % sequence similarity. On the basis of chemotaxonomic data and molecular properties, strain Y26T represents a novel genus, Hwanghaeicola, within the family Rhodobacteraceae, for which the name Hwanghaeicola aestuarii gen. nov., sp. nov. is proposed. The type strain is Y26T (=KACC 13705T =DSM 22009T).


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