scholarly journals Halobacillus sediminis sp. nov., a moderately halophilic bacterium isolated from a solar saltern sediment

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).

2004 ◽  
Vol 54 (6) ◽  
pp. 2037-2042 ◽  
Author(s):  
Jee-Min Lim ◽  
Jung-Hoon Yoon ◽  
Jae-Chan Lee ◽  
Che Ok Jeon ◽  
Dong-Jin Park ◽  
...  

A moderately halophilic bacterium, strain SS20T, capable of growing at salinities of 1–20 % (w/v) NaCl was isolated from a solar saltern of the Dangjin area in Korea and was characterized taxonomically. Strain SS20T was a Gram-negative bacterium comprising motile, short rods. Its major cellular fatty acids were C18 : 1 ω7c, C19 : 0 ω8c cyclo and C16 : 0. The DNA G+C content was 70 mol% and the predominant ubiquinone was Q-9. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain SS20T belonged to the genus Halomonas. The levels of 16S rRNA gene sequence similarity to the type strains of Halomonas species were in the range 93·0–97·5 %. The levels of DNA–DNA relatedness between strain SS20T and the type strains of phylogenetically closely related Halomonas species were in the range 5·3–12·3 %. On the basis of physiological and molecular properties, strain SS20T represents a novel species of the genus Halomonas, for which the name Halomonas koreensis sp. nov. is proposed. The type strain is SS20T (=KCTC 12127T=JCM 12237T).


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).


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).


2007 ◽  
Vol 57 (6) ◽  
pp. 1238-1242 ◽  
Author(s):  
Margarita Aguilera ◽  
Antonio Cabrera ◽  
Claudia Incerti ◽  
Susana Fuentes ◽  
Nick J. Russell ◽  
...  

A moderately halophilic, Gram-negative bacterium (strain CG4.1T), which was isolated from a solar saltern at Cabo de Gata, a wildlife reserve located in the province of Almería, southern Spain, was subjected to a polyphasic taxonomic study. This organism was an aerobic, motile rod that produced colonies with a yellow pigment. Strain CG4.1T grew at salinities of 3–25 % (w/v), at 15–45 °C and at pH 5–9. The organism reduced nitrate, hydrolysed starch and had phenylalanine deaminase activity. The major fatty acids were C18 : 1 ω7c, C16 : 0 and C19 : 0 cyclo ω8c. The DNA G+C content was 63.6 mol%. On the basis of phenotypic and phylogenetic data, strain CG4.1T appears to be a member of the genus Chromohalobacter and clustered closely with Chromohalobacter species, with 95–96 % similarity between their 16S rRNA gene sequences. However, DNA–DNA relatedness between the isolate and the type strains of Chromohalobacter species was low. Therefore, it is proposed that strain CG4.1T represents a novel species, Chromohalobacter salarius sp. nov. The type strain is strain CG4.1T (=CECT 5903T=LMG 23626T).


2007 ◽  
Vol 57 (2) ◽  
pp. 376-380 ◽  
Author(s):  
Antonio Cabrera ◽  
Margarita Aguilera ◽  
Susana Fuentes ◽  
Claudia Incerti ◽  
Nick J. Russell ◽  
...  

A moderately halophilic bacterium, strain CG2.1T, isolated from a solar saltern at Cabo de Gata, a wildlife reserve located in the province of Almería, southern Spain, was subjected to a polyphasic taxonomic study. This organism was an aerobic, motile, Gram-negative rod that produced orange-pigmented colonies. Strain CG2.1T was able to grow at salinities of 3–25 % (w/v) and at temperatures of 15–40 °C. The pH range for growth was 5–9. Strain CG2.1T was a heterotroph capable of utilizing various carbohydrates as carbon sources. The organism reduced nitrate and showed phenylalanine deaminase activity. The major fatty acids were C18 : 1 ω7c, C16 : 0 and C19 : 0 cyclo ω8c. The DNA G+C content was 60.9 mol%. On the basis of the phenotypic and phylogenetic data, strain CG2.1T appeared to be a member of the genus Halomonas and clustered closely with Halomonas marisflavi (97.1 % 16S rRNA gene sequence similarity). However, the level of DNA–DNA relatedness between the novel isolate and the most closely related Halomonas species was low. On the basis of these data, strain CG2.1T represents a novel member of the genus Halomonas, for which the name Halomonas indalinina is proposed. The type strain is CG2.1T (=CECT 5902T=LMG 23625T).


2005 ◽  
Vol 55 (3) ◽  
pp. 1027-1031 ◽  
Author(s):  
Jee-Min Lim ◽  
Che Ok Jeon ◽  
Dong-Jin Park ◽  
Hye-Ryoung Kim ◽  
Byoung-Jun Yoon ◽  
...  

A moderately halophilic, Gram-positive, rod-shaped bacterium (BH030004T) was isolated from a solar saltern in Korea. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain BH030004T belonged to the genus Pontibacillus. Chemotaxonomic data (DNA G+C content, 42 mol%; major isoprenoid quinone, MK-7; cell-wall type, A1γ-type meso-diaminopimelic acid; major fatty acids, iso-C15 : 0 and anteiso-C15 : 0) also supported the affiliation of the isolate to the genus Pontibacillus. Although the 16S rRNA gene sequence similarity between strain BH030004T and Pontibacillus chungwhensis DSM 16287T was relatively high (99·1 %), physiological properties and DNA–DNA hybridization (about 7 % DNA–DNA relatedness) allowed genotypic and phenotypic differentiation of strain BH030004T from the type strain of P. chungwhensis. Therefore, strain BH030004T represents a novel species of the genus Pontibacillus, for which the name Pontibacillus marinus sp. nov. is proposed. The type strain is BH030004T (=KCTC 3917T=DSM 16465T).


2005 ◽  
Vol 55 (5) ◽  
pp. 2027-2032 ◽  
Author(s):  
Jae-Chan Lee ◽  
Che Ok Jeon ◽  
Jee-Min Lim ◽  
Sang-Mi Lee ◽  
Jung-Min Lee ◽  
...  

A moderately halophilic, Gram-negative bacterium, strain BH539T, which was isolated from a solar saltern at Taean in Korea, was considered to be a member of the genus Halomonas. Strain BH539T grew at salinities of 1–25 % (w/v) and at temperatures of 10–45 °C. Cells were short rods that were motile by means of several flagella. Their major fatty acids were C18 : 1 ω7c, C16 : 0 and C19 : 0 cyclo ω8c. The genomic DNA G+C content was about 65 mol% and the predominant ubiquinone was Q-9. Phylogenetic analyses based on 16S rRNA gene sequences indicated that the isolate formed a branch of the species Cobetia marina. However, 23S and 16S rRNA gene sequence similarities revealed that strain BH539T was related more closely to the type strains of the genus Halomonas. Phylogenetic analyses based on 23S rRNA gene sequences also indicated that the strain formed a phyletic line within the genus Halomonas. Therefore, it was concluded that strain BH539T should be classified within the genus Halomonas, rather than Cobetia. On the basis of physiological and molecular properties, strain BH539T represents a novel species of the genus Halomonas, for which the name Halomonas taeanensis sp. nov. is proposed. The type strain is BH539T (=KCTC 12284T=DSM 16463T).


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).


2007 ◽  
Vol 57 (6) ◽  
pp. 1222-1226 ◽  
Author(s):  
Ya-Nan Wang ◽  
Hua Cai ◽  
Chang-Qiao Chi ◽  
An-Huai Lu ◽  
Xian-Gui Lin ◽  
...  

A moderately halophilic bacterium, designated strain SL014B-85T, was isolated from a crude-oil-contaminated saline soil from Shengli oilfield, Shandong Province, China. Cells were Gram-negative, aerobic, short rods with lateral flagella. Growth occurred at NaCl concentrations of 0–15 % (optimum 5–15 %), at 10–42 °C (optimum 30 °C) and at pH 8.0–9.0 (optimum pH 8.5). The only respiratory quinone was Q9, and the main cellular fatty acids were C18 : 1 ω7c, C16 : 0 and C19 : 0 cyclo ω8c. The G+C content of the DNA was 66.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SL014B-85T belonged to the genus Halomonas in the Gammaproteobacteria, with highest sequence similarity of 98.1 and 97.8 % to Halomonas alimentaria DSM 15356T and Halomonas ventosae DSM 15911T, respectively. DNA–DNA relatedness values were below 40 % with members of closely related Halomonas species. Results of phenotypic, biochemical and phylogenetic analyses revealed that strain SL014B-85T could be classified as representing a novel species of the genus Halomonas, for which the name Halomonas shengliensis sp. nov. is proposed. The type strain is SL014B-85T (=CGMCC 1.6444T=LMG 23897T).


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