scholarly journals Halomonas shengliensis sp. nov., a moderately halophilic, denitrifying, crude-oil-utilizing bacterium

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).

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).


2012 ◽  
Vol 62 (1) ◽  
pp. 173-178 ◽  
Author(s):  
Baisuo Zhao ◽  
Hui Wang ◽  
Xinwei Mao ◽  
Ruirui Li ◽  
Yun-Jiao Zhang ◽  
...  

A Gram-negative, aerobic, short rod-shaped and non-motile bacterium, strain A-1T, was isolated from a saline soil contaminated with crude oil in Xianhe, Shangdong Province, China. Strain A-1T formed yellow colonies, was moderately halophilic and grew with 0.05–27.5 % (w/v) total salts (optimum 5–8 %), at 10–42 °C (optimum 30 °C) and at pH 5.5–9.0 (optimum pH 7.2). The dominant fatty acids (>5 %) were C16 : 0, summed feature 3 (comprising C16 : 1ω7c and/or iso-C15 : 0 2-OH), C18 : 1ω7c, C19 : 0 cyclo ω8c and C12 : 0 3-OH and the predominant ubiquinone was Q-9. The genomic DNA G+C content was 67.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain A-1T belonged to the genus Halomonas in the class Gammaproteobacteria. The closest relatives were Halomonas lutea YIM 91125T (97.7 % 16S rRNA gene sequence similarity), H. muralis LMG 20969T (95.6 %), H. pantelleriensis AAPT (95.5 %) and H. kribbensis BH843T (95.2 %). DNA–DNA relatedness between strain A-1T and H. lutea CCTCC AB 206093T was 27±3 %. On the basis of phenotypic, chemotaxonomic and phylogenetic features, strain A-1T should be placed in the genus Halomonas as a representative of a novel species. The name Halomonas xianhensis sp. nov. is proposed, with strain A-1T ( = CGMCC 1.6848T  = JCM 14849T) as the type strain.


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).


Author(s):  
Auttaporn Booncharoen ◽  
Wonnop Visessanguan ◽  
Nattakorn Kuncharoen ◽  
Supalurk Yiamsombut ◽  
Pannita Santiyanont ◽  
...  

An aerobic, Gram-stain-positive, endospore-forming, rod-shaped and moderately halophilic strain SKP4-6T, was isolated from shrimp paste (Ka-pi) collected from Samut Sakhon Province, Thailand. Phylogenetic analysis revealed that strain SKP4-6T belonged to the genus Halobacillus and was most closely related to Halobacillus salinus JCM 11546T (98.6 %), Halobacillus locisalis KCTC 3788T (98.6 %) and Halobacillus yeomjeoni KCTC 3957T (98.6 %) based on 16S rRNA gene sequence similarity. The digital DNA–DNA hybridization (dDDH) and average nucleotide identity (ANI) values between strain SKP4-6T and its related species were 18.2–19.3 % and 69.84–84.51 %, respectively, which were lower than the threshold recommended for species delineation. The strain grew optimally at 30–40 °C, at pH 7.0 and with 10–15 % (w/v) NaCl. It contained l-Orn–d-Asp in the cell wall peptidoglycan. The DNA G+C content was 44.8 mol%. The major fatty acids were iso-C15 : 0, anteiso-C15 : 0 and anteiso-C17 : 0. The predominant isoprenoid quinone was MK-7. Phosphatidylglycerol and diphosphatidylglycerol were present as major polar lipids. Based on this polyphasic approach, digital DNA–DNA relatedness and ANI values, strain SKP4-6T represents a novel species of the genus Halobacillus , for which the name Halobacillus fulvus sp. nov. is proposed. The type strain is SKP4-6T (=JCM 32624T=TISTR 2595T).


2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3710-3714 ◽  
Author(s):  
Ying-Yi Huo ◽  
Lin Xu ◽  
Chun-Sheng Wang ◽  
Jun-Yi Yang ◽  
Hong You ◽  
...  

A Gram-stain-negative, aerobic, moderately halophilic bacterium, strain DY53T, was isolated from a deep-seawater sample collected from the eastern Pacific Ocean. This isolate grew in the presence of 0.5–10.0 % (w/v) NaCl, at pH 6.5–8.5 and at 15–40 °C. The optimum NaCl concentration for growth of DY53T was 2 % (w/v) at 35 °C. Chemotaxonomic analysis showed MK-7 as the predominant menaquinone and iso-C15 : 0, summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1ω7c), iso-C15 : 1 G, iso-C15 : 0 3-OH and iso-C17 : 0 3-OH as major cellular fatty acids. The genomic DNA G+C content was 40.8 mol%. Phylogenetic trees based on 16S rRNA gene sequences revealed that Fabibacter halotolerans UST030701-097T was the closest neighbour, with 96.7 % sequence similarity. Based on phylogenetic, chemotaxonomic and phenotypic data, we propose that strain DY53T represents a novel species of the genus Fabibacter , for which the name Fabibacter pacificus sp. nov. is proposed. The type strain is DY53T( = CGMCC 1.12402T = JCM 18885T).


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).


2006 ◽  
Vol 56 (11) ◽  
pp. 2653-2656 ◽  
Author(s):  
Byung-Yong Kim ◽  
Hang-Yeon Weon ◽  
Seung-Hee Yoo ◽  
Jong-Shik Kim ◽  
Soon-Wo Kwon ◽  
...  

A marine, Gram-negative, aerobic, motile, straight-rod-shaped, moderately halophilic bacterium, designated strain DD-M3T, was isolated from sea sand in Pohang, Korea. A phylogenetic tree based on 16S rRNA gene sequences showed that the strain fell within the evolutionary radiation encompassed by the genus Marinobacter. The levels of 16S rRNA gene sequence similarity between the novel strain and the type strains of recognized Marinobacter species ranged from 94.2 to 97.6 %, the highest values being with Marinobacter flavimaris SW-145T (97.6 %) and Marinobacter lipolyticus SM19T (96.8 %). The values for DNA–DNA relatedness between isolate DD-M3T and the type strains of the most closely related species, M. flavimaris and M. lipolyticus, were 41 and 36 %, respectively. Strain DD-M3T was characterized as having Q-9 as the predominant respiratory quinone and 16 : 0, summed feature 3 and 18 : 1ω9c as the main fatty acids. The DNA G+C content was 54.1 mol%. On the basis of its phenotypic and genotypic characteristics, DD-M3T represents a novel species of the genus Marinobacter, for which the name Marinobacter koreensis sp. nov. is proposed, with DD-M3T (=KACC 11513T=DSM 17924T) as the type strain.


2005 ◽  
Vol 55 (5) ◽  
pp. 1789-1795 ◽  
Author(s):  
María Teresa García ◽  
Virginia Gallego ◽  
Antonio Ventosa ◽  
Encarnación Mellado

A novel moderately halophilic bacterium, strain G-19.1T, has been isolated from a phenol enrichment of samples collected in hypersaline habitats of southern Spain. This enrichment culture was a part of a screening programme to isolate halophilic bacteria able to degrade various aromatic compounds. Strain G-19.1T has been characterized as a potential phenol-degrader over a wide range of saline conditions. Strain G-19.1T was found to be an aerobic, Gram-positive, endospore-forming, non-pigmented, moderately halophilic rod that grew optimally in media containing 7·5–10 % NaCl at pH 7·0. The DNA G+C content was 42·4 mol%. Phylogenetic analysis based on comparison of 16S rRNA gene sequences indicated that the closest relatives were Halobacillus species (96·2–97·0 %), although this novel isolate constitutes a separate line of descent within the radiation of Gram-positive rods. The cell-wall peptidoglycan contained meso-diaminopimelic acid, indicating that this strain does not share the main characteristic that differentiates members of the genus Halobacillus (which contain Orn–d-Asp) from other related genera. The predominant cellular fatty acids were anteiso-C15 : 0, iso-C16 : 0 and iso-C15 : 0. On the basis of phenotypic, genotypic and phylogenetic analyses, this isolate should be classified in a novel genus and species, for which the name Thalassobacillus devorans gen. nov., sp. nov. is proposed. The type strain is strain G-19.1T (=DSM 16966T=CECT 7046T=CCM 7282T).


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