scholarly journals Marinobacter oulmenensis sp. nov., a moderately halophilic bacterium isolated from brine of a salt concentrator

2011 ◽  
Vol 61 (9) ◽  
pp. 2210-2214 ◽  
Author(s):  
Karima Kharroub ◽  
Margarita Aguilera ◽  
María Luján Jiménez-Pranteda ◽  
Ana González-Paredes ◽  
Alberto Ramos-Cormenzana ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
Halophilic Bacterium ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Moderately Halophilic ◽  
Moderately Halophilic Bacterium

A Gram-negative, aerobic, moderately halophilic bacterium, designated Set74T, was isolated from brine of a salt concentrator at Ain Oulmene, Algeria. The strain grew optimally at 37–40 °C, at pH 6.5–7.0 and with 5–7.5 % (w/v) NaCl and used various organic compounds as sole carbon, nitrogen and energy sources. Ubiquinone 9 (Q-9) was the major lipoquinone. The main cellular fatty acids were C16 : 0, C18 : 1ω9c, summed feature 7 (ECL 18.846; C19 : 0 cyclo ω10c and/or C19 : 1ω6c), C12 : 0 3-OH, C16 : 1ω9c, C18 : 0 and C12 : 0. The major polar lipids were phosphatidylglycerol, diphosphatidylglycerol and phosphatidylethanolamine. The G+C content of the genomic DNA was 57.4 mol%. The 16S rRNA gene sequence analysis indicated that strain Set74T was a member of the genus Marinobacter. The closest relatives of strain Set74T were Marinobacter santoriniensis NKSG1T (97.5 % 16S rRNA gene sequence similarity) and Marinobacter koreensis DD-M3T (97.4 %). DNA–DNA relatedness between strain Set74T and M. santoriniensis DSM 21262T and M. koreensis DSM 17924T was 45 and 37 %, respectively. On the basis of the phenotypic, chemotaxonomic and phylogenetic features, a novel species, Marinobacter oulmenensis sp. nov., is proposed. The type strain is Set74T ( = CECT 7499T  = DSM 22359T).

scholarly journals Halomonas kribbensis sp. nov., a novel moderately halophilic bacterium isolated from a solar saltern in Korea

2007 ◽  
Vol 57 (10) ◽  
pp. 2194-2198 ◽  
Author(s):  
Che Ok Jeon ◽  
Jee-Min Lim ◽  
Jung Ro Lee ◽  
Gye Suk Lee ◽  
Dong-Jin Park ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Solar Saltern ◽  
Rrna Gene Sequence ◽  
Moderately Halophilic ◽  
Moderately Halophilic Bacterium

A moderately halophilic, Gram-negative bacterium, designated strain BH843T, was isolated from a solar saltern in Korea and subjected to a taxonomic analysis. Strain BH843T grew at salinities of 1–14 % (w/v) NaCl and at temperatures of 10–40 °C. The cells were motile cocci or short rods with single flagella and contained C16 : 0, C19 : 0 cyclo ω8c and C17 : 0 cyclo as the major fatty acids. The G+C content of the genomic DNA was 66 mol% and the predominant ubiquinone was Q-9. Comparative 16S rRNA gene sequence analyses showed that strain BH843T formed a distinct phyletic line within the genus Halomonas, and the levels of 16S rRNA gene sequence similarity with respect to recognized Halomonas species were below 95.1 %. The levels of DNA–DNA relatedness between strain BH843T and the type strains of phylogenetically closely related Halomonas species were below 25 %. On the basis of phenotypic, chemotaxonomic and molecular data, strain BH843T represents a novel species within the genus Halomonas, for which the name Halomonas kribbensis is proposed. The type strain is BH843T (=KCTC 12584T=DSM 17892T).

scholarly journals Salinicoccus luteus sp. nov., isolated from a desert soil

2007 ◽  
Vol 57 (8) ◽  
pp. 1901-1905 ◽  
Author(s):  
Yu-Qin Zhang ◽  
Li-Yan Yu ◽  
Hong-Yu Liu ◽  
Yue-Qin Zhang ◽  
Li-Hua Xu ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
Desert Soil ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
The Novel ◽  
Rrna Gene Sequence ◽  
Moderately Halophilic Bacterium

A moderately halophilic bacterium, strain YIM 70202T, was isolated from a desert soil sample collected from Egypt and was subjected to a taxonomic investigation. In a phylogenetic dendrogram based on 16S rRNA gene sequence analysis, strain YIM 70202T was affiliated to the Salinicoccus clade, showing 94.5–96.8 % 16S rRNA gene sequence similarity to the recognized species of the genus Salinicoccus, in which Salinicoccus roseus CCM 3516T was the nearest neighbour. The DNA–DNA relatedness value of the novel isolate with S. roseus CCM 3516T was 12.7 %. The novel isolate grew at temperatures between 4 and 45 °C and at pH values ranging from 7.0 to 11.0, with an optimum of 30 °C and pH 8.0–9.0, respectively. Strain YIM 70202T grew optimally in the presence of 10 % NaCl (w/v) and growth was observed at NaCl concentrations in the range 1–25 % (w/v). Chemotaxonomic data revealed that strain YIM 70202T contained MK-6 as the predominant respiratory quinone, possessed l-Lys–Gly5 as the cell-wall peptidoglycan, had phosphatidylglycerol, diphosphatidylglycerol and an unknown glycolipid as the polar lipids and contained i-C15 : 0 and ai-C15 : 0 as the predominant fatty acids. The DNA G+C content was 49.7 mol%. The biochemical and chemotaxonomic properties demonstrate that strain YIM 70202T represents a novel species of the genus Salinicoccus. The name Salinicoccus luteus sp. nov. is proposed with strain YIM 70202T (=CGMCC 1.6511T=KCTC 3941T) as the type strain.

scholarly journals Halomonas rifensis sp. nov., an exopolysaccharide-producing, halophilic bacterium isolated from a solar saltern

2011 ◽  
Vol 61 (11) ◽  
pp. 2600-2605 ◽  
Author(s):  
Hakima Amjres ◽  
Victoria Béjar ◽  
Emilia Quesada ◽  
Jamal Abrini ◽  
Inmaculada Llamas
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Gene Sequence ◽  
Halophilic Bacterium ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Solar Saltern ◽  
Rrna Gene Sequence ◽  
Terminal Electron Acceptor ◽  
Moderately Halophilic Bacterium

A polyphasic taxonomic study was conducted on strain HK31T, a moderately halophilic bacterium isolated from a solar saltern in Chefchaouen, Morocco. The strain was a Gram-reaction-negative, oxidase-positive rod, which was motile by means of peritrichous flagella. The strain required NaCl for growth and grew in salt concentrations (mixture of sea salts) of 0.5–20 % (w/v) (optimum 5–7.5 %, w/v), at 25–45 °C (optimum 32 °C) and at pH 5–10 (optimum pH 6–9). Strain HK31T did not produce acids from sugars and its metabolism was respiratory, using oxygen as terminal electron acceptor. The strain was positive for the accumulation of poly-β-hydroxyalkanoate granules and formed mucoid colonies due to the excretion of an exopolysaccharide. The DNA G+C content was 61.5 mol%. 16S rRNA gene sequence analysis indicated that it belonged to the genus Halomonas in the class Gammaproteobacteria. The most phylogenetically related species was Halomonas anticariensis, with which strain HK31T showed a 16S rRNA gene sequence similarity of 96.48 %. Its major fatty acids were C18 : 1ω7c, C16 : 0, C19 : 0 cyclo ω8c , C16 : 1ω7c/iso-C15 : 0 2-OH and C12 : 0 3-OH and the predominant respiratory lipoquinone was ubiquinone with nine isoprene units (Q-9). Based on the evidence provided in this study, strain HK31T ( = CECT 7698T  = LMG 25695T) represents a novel species of the genus Halomonas, for which the name Halomonas rifensis is proposed.

scholarly journals Limibacillus halophilus gen. nov., sp. nov., a moderately halophilic bacterium in the family Rhodospirillaceae isolated from reclaimed land

2015 ◽  
Vol 65 (Pt_9) ◽  
pp. 3155-3161 ◽  
Author(s):  
Jong-Hwa Kim ◽  
Maytiya Konkit ◽  
Jung-Hoon Yoon ◽  
Wonyong Kim
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Reclaimed Land ◽  
Moderately Halophilic Bacterium ◽  
The Family

A Gram-stain-negative, aerobic, non-motile, non-spore-forming and short rod-shaped bacterial strain, designated CAU 1121T, was isolated from reclaimed land in the Republic of Korea and its taxonomic position was investigated using a polyphasic approach. The bacterium grew optimally at 37 °C, at pH 6.5 and in the presence of 2 % (w/v) NaCl. Based on 16S rRNA gene sequence similarity, the novel isolate belonged to the family Rhodospirillaceae within the class Alphaproteobacteria and formed an independent lineage within the evolutionary radiation encompassed by the phylum Proteobacteria. Strain CAU 1121T exhibited very low levels of 16S rRNA gene sequence similarity with its phylogenetic neighbours Pelagibius litoralis (similarity, 92.5 %), Fodinicurvata fenggangensis (similarity, 91.4 %), Fodinicurvata sediminis (similarity, 90.7 %) and Tistlia consotensis (similarity, 91.0 %). Strain CAU 1121T contained ubiquinone-10 as the only respiratory quinone and C18 : 1ω7c as the major cellular fatty acid. The DNA G+C content of the strain was 65 mol%. On the basis of phylogenetic inference, and physiological and chemotaxonomic data, it is proposed that strain CAU 1121T represents a novel genus and novel species in the family Rhodospirillaceae, for which the name Limibacillus halophilus gen. nov., sp. nov. is suggested. The type strain is CAU 1121T ( = KCTC 42420T = CECT 8803T = NBRC 110928T).

scholarly journals Oceanisphaera donghaensis sp. nov., a halophilic bacterium from the East Sea, Korea

2006 ◽  
Vol 56 (4) ◽  
pp. 895-898 ◽  
Author(s):  
Soo-Je Park ◽  
Cheol-Hee Kang ◽  
Young-Do Nam ◽  
Jin-Woo Bae ◽  
Yong-Ha Park ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
Halophilic Bacterium ◽  
Biochemical Properties ◽  
East Sea ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence

A taxonomic study was carried out on two isolates, strains BL1T and BL11, from marine sediment collected from the East Sea, Korea. Comparative 16S rRNA gene sequence studies showed that these isolates clearly affiliated with the Gammaproteobacteria. BL1T and BL11 were most closely related to Oceanisphaera litoralis KMM 3654T (97·6 and 97·7 % 16S rRNA gene sequence similarity, respectively). The level of 16S rRNA gene sequence similarity between strains BL1T and BL11 was 99·7 %. The two isolates were Gram-negative, aerobic, moderately halophilic, and grew in 0·5–8·0 % NaCl and at 4–42 °C. Strains BL1T and BL11 shared some physiological and biochemical properties with O. litoralis KMM 3654T, although they differed in that BL1T and BL11 were able to utilize ethanol, proline and alanine. The G+C contents of the genomic DNA of strains BL1T and BL11 were 56·6 and 57·1 mol%, respectively. Both strains possessed C16 : 1 ω7c and/or iso-C15 : 0 2-OH, C16 : 0 and C18 : 1 ω7c as the major fatty acids. DNA–DNA relatedness data indicated that strains BL1T and BL11 represent a genomic species that is separate from O. litoralis KMM 3654T. On the basis of polyphasic evidence, it is proposed that strain BL1T (=KCTC 12522T=DSM 17589T) represents the type strain of a novel species, Oceanisphaera donghaensis sp. nov.

scholarly journals Chromohalobacter japonicus sp. nov., a moderately halophilic bacterium isolated from a Japanese salty food

2007 ◽  
Vol 57 (10) ◽  
pp. 2262-2266 ◽  
Author(s):  
Cristina Sánchez-Porro ◽  
Hiroko Tokunaga ◽  
Masao Tokunaga ◽  
Antonio Ventosa
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Dna Hybridization ◽  
Gene Sequence ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Moderately Halophilic ◽  
Salty Food ◽  
Moderately Halophilic Bacterium

A Gram-negative, non-spore-forming, rod-shaped, motile bacterium, designated strain 43T, was isolated from a Japanese salty food and then subjected to a polyphasic taxonomic study. Strain 43T is moderately halophilic, growing at NaCl concentrations in the range 5–25 % (w/v), with optimum growth between 7.5 and 12.5 % (w/v) NaCl. Growth occurs at temperatures from 15 to 42 °C (optimally at 28–37 °C) and at pH 5.5–9.0 (optimally at pH 7.0–8.0). A phylogenetic analysis based on 16S rRNA gene sequence comparisons revealed that strain 43T belongs to the genus Chromohalobacter. The closest relatives were Chromohalobacter canadensis ATCC 43984T (99.3 % 16S rRNA gene sequence similarity), Chromohalobacter beijerinckii ATCC 19372T (99.1 %), Chromohalobacter sarecensis LV4T (98.3 %), Chromohalobacter nigrandesensis LTS-4NT (97.9 %) and Chromohalobacter marismortui ATCC 17056T (97.9 %). The DNA G+C content was 62.9 mol%, which is within the range described for the genus Chromohalobacter. DNA–DNA hybridization studies between strain 43T and C. canadensis CECT 5385T and C. beijerinckii DSM 7218T showed 38 and 49 % relatedness, respectively; lower DNA–DNA hybridization percentages were obtained with respect to other related Chromohalobacter species. The major fatty acids of strain 43T were C16 : 0, C19 : 0 cyclo ω8c and C12 : 0 3-OH. Overall, the phenotypic, genotypic and phylogenetic results demonstrated that strain 43T represents a novel species within the genus Chromohalobacter. The name Chromohalobacter japonicus sp. nov. is proposed, with strain 43T (=CECT 7219T =CCM 7416T) as the type strain.

scholarly journals Lentibacillus persicus sp. nov., a moderately halophilic species isolated from a saline lake

2010 ◽  
Vol 60 (6) ◽  
pp. 1407-1412 ◽  
Author(s):  
C. Sánchez-Porro ◽  
M. A. Amoozegar ◽  
A. B. Fernandez ◽  
H. Babavalian fard ◽  
M. Ramezani ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Strain ◽  
Gene Sequence ◽  
Diaminopimelic Acid ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Moderately Halophilic ◽  
Moderately Halophilic Bacterium

A Gram-staining-positive, moderately halophilic bacterium, designated strain Amb31T, was isolated from water of the hypersaline lake Aran-Bidgol in Iran and characterized taxonomically using a polyphasic approach. Cells were rods, motile and able to produce ellipsoidal endospores at a central position in swollen sporangia. Strain Amb31T was facultatively anaerobic and catalase- and oxidase-positive. The strain grew in a complex medium supplemented with 3–25 % (w/v) NaCl (optimum 7.5–10 %). Optimal growth was at 30–35 °C and pH 7.5. Phylogenetic analysis based on 16S rRNA gene sequence comparisons showed that strain Amb31T belonged to the genus Lentibacillus; it exhibited 16S rRNA gene sequence similarity values of 96.8 and 96.4 % to Lentibacillus salicampi SF-20T and Lentibacillus salinarum AHS-1T, respectively, and values of 95.9–94.7 % to the type strains of other recognized species of Lentibacillus. The cell-wall peptidoglycan of strain Amb31T was based on meso-diaminopimelic acid and MK-7 was the respiratory isoprenoid quinone. The major fatty acids were anteiso-C15 : 0 (44.7 %), iso-C16 : 0 (21.4 %) and anteiso-C17 : 0 (15.9 %) and the polar lipid pattern consisted of phosphatidylglycerol, diphosphatidylglycerol, five phospholipids and a glycolipid. The DNA G+C content was 44.1 mol%. All these features confirmed the placement of strain Amb31T within the genus Lentibacillus and the strain could be clearly differentiated from strains of the other species of Lentibacillus on the basis of several phenotypic, genotypic and chemotaxonomic features. DNA–DNA relatedness with the type strain of the most closely related strain, L. salicampi DSM 16425T, was 28 %. Therefore, strain Amb31T represents a novel species of the genus Lentibacillus, for which the name Lentibacillus persicus sp. nov. is proposed. The type strain is Amb31T (=CCM 7683T =CECT 7524T =DSM 22530T =LMG 25304T).

scholarly journals Terribacillus aidingensis sp. nov., a moderately halophilic bacterium

2010 ◽  
Vol 60 (12) ◽  
pp. 2940-2945 ◽  
Author(s):  
Wenyan Liu ◽  
Linlin Jiang ◽  
Chunjing Guo ◽  
Su Sheng Yang
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Gene Sequence ◽  
Diaminopimelic Acid ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Dna Relatedness ◽  
Moderately Halophilic ◽  
Moderately Halophilic Bacterium

Three Gram-positive, moderately halophilic bacteria, designated YI7-61T, IA7 and DB2, were isolated from sediments of Aiding salt lake in the Xinjiang region of China. Cells of the strains were rod-shaped, motile by means of peritrichous flagella and produced ellipsoidal spores. Colonies were pale yellow in colour. The strains grew optimally at 30–37 °C, pH 6–7 and 3–7 % (w/v) NaCl. The diamino acid in the murein was meso-diaminopimelic acid and the major quinone system was MK-7. The major cellular fatty acids were anteiso-C15 : 0 and anteiso-C17 : 0. The DNA G+C content was 44.6–45.0 mol%. 16S rRNA gene sequence analysis revealed that strains YI7-61T, IA7 and DB2 were closely related to members of the genus Terribacillus and showed 96.8–97.6, 96.4–97.2 and 95.4–95.5 % 16S rRNA gene sequence similarity with Terribacillus halophilus 002-051T, Terribacillus saccharophilus RB589 and Terribacillus goriensis CL-GR16T, respectively. DNA–DNA relatedness among the isolates was 88–92 % and strain YI7-61T shared 24, 18 and 18 % DNA–DNA relatedness with T. halophilus JCM 21760T, T. saccharophilus JCM 21759T and T. goriensis DSM 18252T, respectively. On the basis of phenotypic and phylogenetic distinctiveness, the three isolates should be placed in the genus Terribacillus as representatives of a novel species, for which the name Terribacillus aidingensis sp. nov. is proposed. The type strain is YI7-61T (=CGMCC 1.8913T =NBRC 105790T).

Salinimonas chungwhensis gen. nov., sp. nov., a moderately halophilic bacterium from a solar saltern in Korea

2005 ◽  
Vol 55 (1) ◽  
pp. 239-243 ◽  
Author(s):  
Che Ok Jeon ◽  
Jee-Min Lim ◽  
Dong-Jin Park ◽  
Chang-Jin Kim
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Gene Sequence ◽  
Halophilic Bacterium ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Solar Saltern ◽  
Rrna Gene Sequence ◽  
Moderately Halophilic Bacterium ◽  
The Family

A halophilic non-spore-forming bacterium of the γ-Proteobacteria, designated strain BH030046T, was isolated from a solar saltern in Korea. Cells were Gram-negative, chemoheterotrophic, short rod-shaped and motile with a polar flagellum. Comparative 16S rRNA gene sequence analysis revealed that strain BH030046T formed a distinct lineage in the family Alteromonadaceae and was distinguished from its closest related genera Alteromonas (91·4–94·8 %), Aestuariibacter (92·1–93·5 %) and Glaciecola (92·1–93·5 %) on the basis of low 16S rRNA gene sequence similarities. Physiological and biochemical data also showed that the isolate was different from members of these three genera. The predominant cellular fatty acids were C16 : 0 and C18 : 1 ω7c. DNA G+C content was 48 mol% and the major isoprenoid quinone was Q-8. The strain grew optimally at 30–35 °C, pH 7·0–8·0 and 2–5 % NaCl. On the basis of physiological and molecular properties, strain BH030046T (=KCTC 12239T=DSM 16280T) represents a novel genus and species in the family Alteromonadaceae, for which the name Salinimonas chungwhensis gen. nov., sp. nov. is proposed.

scholarly journals Salinimicrobium marinum sp. nov., a halophilic bacterium of the family Flavobacteriaceae, and emended descriptions of the genus Salinimicrobium and Salinimicrobium catena

2010 ◽  
Vol 60 (10) ◽  
pp. 2303-2306 ◽  
Author(s):  
Olga I. Nedashkovskaya ◽  
Marc Vancanneyt ◽  
Seung Bum Kim ◽  
Jihye Han ◽  
Natalia V. Zhukova ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
Halophilic Bacterium ◽  
16S Rrna Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
The Family ◽  
Taxonomic Approach

Two novel heterotrophic, facultatively anaerobic, gliding and yellow-pigmented bacteria, designated strains KMM 6270T and KMM 6320, were isolated from different marine environments and studied using a polyphasic taxonomic approach. 16S rRNA gene sequence analysis placed the strains within the family Flavobacteriaceae. Strains KMM 6270T and KMM 6320 were most closely related to the type strains of recognized species of the genus Salinimicrobium (95.0–96.6 % 16S rRNA gene sequence similarity). The G+C content of the genomic DNA was 40–41 mol%. The strains grew with 0.5–15 % (w/v) NaCl (optimum 4 % NaCl) and at 4–41 °C (optimum 28–32 °C). Aesculin and gelatin were hydrolysed, but agar, casein, DNA and chitin were not. The phylogenetic data taken together with the results of the genotypic and phenotypic studies permit the classification of strains KMM 6270T and KMM 6320 as members of a novel species of the genus Salinimicrobium, for which the name Salinimicrobium marinum sp. nov. is proposed. The type strain is KMM 6270T (=KCTC 12719T=LMG 25395T).

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