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

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.

2011 ◽  
Vol 61 (11) ◽  
pp. 2600-2605 ◽  
Author(s):  
Hakima Amjres ◽  
Victoria Béjar ◽  
Emilia Quesada ◽  
Jamal Abrini ◽  
Inmaculada Llamas

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.


2015 ◽  
Vol 65 (Pt_9) ◽  
pp. 3155-3161 ◽  
Author(s):  
Jong-Hwa Kim ◽  
Maytiya Konkit ◽  
Jung-Hoon Yoon ◽  
Wonyong Kim

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).


2013 ◽  
Vol 63 (Pt_6) ◽  
pp. 2124-2131 ◽  
Author(s):  
Gwang Il Jang ◽  
Yirang Cho ◽  
Byung Cheol Cho

A Gram-staining-positive, non-motile, strictly aerobic, non-spore-forming, vibrio-shaped bacterial strain, CL-TW6T, was isolated from a reservoir seawater sample from a solar saltern in Korea. Analysis of the 16S rRNA gene sequence of strain CL-TW6T revealed a clear affiliation with the family Microbacteriaceae . Strain CL-TW6T showed the closest phylogenetic relationships with the genera Yonghaparkia and Microcella , with 16S rRNA gene sequence similarity of 94.8–95.3 %. The strain grew in the presence of 1–9 % sea salts, at 15–35 °C and at pH 7.0–9.0. The major cellular fatty acids of strain CL-TW6T were anteiso-C15 : 0 (32.6 %), iso-C16 : 0 (20.4 %), iso-C15 : 0 (13.2 %) and iso-C14 : 0 (11.8 %) and the major menaquinones were MK-9 and MK-10. Cell-wall analysis showed that the peptidoglycan of strain CL-TW6T contained 2,4-diaminobutyric acid, alanine, glycine and glutamic acid. The major polar lipids were diphosphatidylglycerol and phosphatidylglycerol. The genomic DNA G+C content of strain CL-TW6T was 60.0 mol%. The combined phenotypic, chemotaxonomic and phylogenetic data showed clearly that strain CL-TW6T could be distinguished from members of the family Microbacteriaceae with validly published names. Thus, strain CL-TW6T should be classified as representing a novel genus and species in the family Microbacteriaceae , for which the name Pontimonas salivibrio gen. nov., sp. nov. is proposed. The type strain of Pontimonas salivibrio is CL-TW6T ( = KCCM 90105T  = JCM 18206T).


2006 ◽  
Vol 56 (12) ◽  
pp. 2799-2803 ◽  
Author(s):  
Dong H. Choi ◽  
Byung C. Cho

A lemon-shaped marine bacterium, strain CL-SP20T, isolated from hypersaline water from a solar saltern in Korea, was characterized in terms of its physiological and biochemical features, its fatty acid profile and its phylogenetic position based on 16S rRNA gene sequences. Analysis of the 16S rRNA gene sequence revealed a clear affiliation with the Roseobacter lineage (91.0–96.3 % similarity) of the family Rhodobacteraceae. However, strain CL-SP20T did not form a robust clade with any species of the Roseobacter clade, forming a distinct subline. Strain CL-SP20T is non-motile and forms beige colonies on marine agar. The strain is able to grow with sea salts at concentrations in the range 1–10 %, with optimal growth between 5 and 6 %. It grows at temperatures in the range 15–40 °C and at pH 6–10. The strain cannot oxidize thiosulfate. The fatty acids are dominated by 18 : 1ω7c (54.3 %) and 19 : 0 cyclo ω8c (20.4 %). The DNA G+C content is 67.3 mol%. According to the physiological data, fatty acid composition and phylogenetic analysis of the 16S rRNA gene sequence, strain CL-SP20T represents a novel species in a novel genus of the family Rhodobacteraceae, for which the name Citreimonas salinaria gen. nov., sp. nov. is proposed. The type strain of Citreimonas salinaria is CL-SP20T (=KCCM 42116T=JCM 13036T).


2007 ◽  
Vol 57 (10) ◽  
pp. 2194-2198 ◽  
Author(s):  
Che Ok Jeon ◽  
Jee-Min Lim ◽  
Jung Ro Lee ◽  
Gye Suk Lee ◽  
Dong-Jin Park ◽  
...  

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).


2011 ◽  
Vol 61 (9) ◽  
pp. 2210-2214 ◽  
Author(s):  
Karima Kharroub ◽  
Margarita Aguilera ◽  
María Luján Jiménez-Pranteda ◽  
Ana González-Paredes ◽  
Alberto Ramos-Cormenzana ◽  
...  

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).


2007 ◽  
Vol 57 (7) ◽  
pp. 1413-1417 ◽  
Author(s):  
Somboon Tanasupawat ◽  
Sirilak Namwong ◽  
Takuji Kudo ◽  
Takashi Itoh

A Gram-positive, spore-forming and moderately halophilic bacterium was isolated from fermented fish (pla-ra) in Thailand. Cells of the isolate, RBU1-1T, were strictly aerobic, motile rods and contained meso-diaminopimelic acid in the cell-wall peptidoglycan. Menaquinone with seven isoprene units (MK-7) was the predominant quinone. This isolate grew at 15–48 °C, pH 5–9 and in 2–30 % NaCl (optimally 10–20 %). The major cellular fatty acids were iso-C15 : 0 and anteiso-C15 : 0. Polar lipid analysis revealed the presence of phosphatidylglycerol and diphosphatidylglycerol. The DNA G+C content was 36.7 mol%. 16S rRNA gene sequence analysis revealed that strain RBU1-1T was a member of the family Bacillaceae, and belonged to a cluster with Filobacillus and Tenuibacillus; strain RBU1-1T showed 16S rRNA gene sequence similarities of 96.0–96.9 % to members of these two genera. Strain RBU1-1T could also be differentiated from members of the genera Filobacillus and Tenuibacillus based on certain phenotypic characteristics such as cell-wall composition, mode of flagellation and growth pH range. Therefore, strain RBU1-1T is considered to represent a novel species in a new genus in the family Bacillaceae, for which the name Piscibacillus salipiscarius gen. nov., sp. nov. is proposed. The type strain of Piscibacillus salipiscarius is RBU1-1T (=JCM 13188T=PCU 270T=TISTR 1571T).


2010 ◽  
Vol 60 (10) ◽  
pp. 2303-2306 ◽  
Author(s):  
Olga I. Nedashkovskaya ◽  
Marc Vancanneyt ◽  
Seung Bum Kim ◽  
Jihye Han ◽  
Natalia V. Zhukova ◽  
...  

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).


2010 ◽  
Vol 60 (4) ◽  
pp. 754-758 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
So-Jung Kang ◽  
Soo-Young Lee ◽  
Ki-Hoon Oh ◽  
Tae-Kwang Oh

A Gram-positive, non-motile and coccoid-, short rod- or rod-shaped bacterial strain, ISL-16T, was isolated from a marine solar saltern in Korea and its taxonomic position was investigated using a polyphasic taxonomic approach. Strain ISL-16T grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 2 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain ISL-16T joined the cluster comprising species of the genus Planococcus. Its 16S rRNA gene sequence contained the same signature nucleotides as those defined for the genus Planococcus. Strain ISL-16T exhibited 16S rRNA gene sequence similarity values of 96.9–98.2 % to the type strains of species of the genus Planococcus. Strain ISL-16T contained MK-8 and MK-7 as the predominant menaquinones and anteiso-C15 : 0, C16 : 1 ω7c alcohol and anteiso-C17 : 0 as the major fatty acids. The DNA G+C content was 48.3 mol%. DNA–DNA relatedness values between strain ISL-16T and the type strains of species of the genus Planococcus were 15–28 %. Differential phenotypic properties, together with its phylogenetic and genetic distinctiveness, enabled strain ISL-16T to be differentiated from recognized species of the genus Planococcus. On the basis of the data presented, strain ISL-16T is considered to represent a novel species of the genus Planococcus, for which the name Planococcus salinarum sp. nov. is proposed. The type strain is ISL-16T (=KCTC 13584T=CCUG 57753T). An emended description of the genus Planococcus is also given.


2007 ◽  
Vol 57 (8) ◽  
pp. 1901-1905 ◽  
Author(s):  
Yu-Qin Zhang ◽  
Li-Yan Yu ◽  
Hong-Yu Liu ◽  
Yue-Qin Zhang ◽  
Li-Hua Xu ◽  
...  

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.


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