scholarly journals Halovenus salina sp. nov., an extremely halophilic archaeon isolated from a saltern

2015 ◽  
Vol 65 (Pt_9) ◽  
pp. 3016-3023 ◽  
Author(s):  
Carmen Infante-Domínguez ◽  
Paulina Corral ◽  
Cristina Sánchez-Porro ◽  
Antonio Ventosa

An extremely halophilic archaeon was isolated from a water sample of Isla Bacuta saltern in Huelva, Spain. Strain ASP54T is a novel red-pigmented, motile, rod-shaped, Gram-stain-negative and strictly aerobic haloarchaeon. Strain ASP54T grew in media containing 15–30  % (w/v) salts and optimally with 25  % (w/v) salts. It grew between pH 5.0 and 9.0 (optimally at pH 7.5) and at 20–40 °C (optimally at 37 °C). Phylogenetic analysis based on multi-locus sequence analysis (MLSA) and the comparison of 16S rRNA gene sequences revealed that strain ASP54T is most closely related to the genus Halovenus. The closest relatives were Halovenus aranensis EB27T (92.1  % 16S rRNA gene sequence similarity), Halorientalis regularis TNN28T (92.1  %), and Halorientalis persicus D108T (92.0  %). The polar lipid pattern of strain ASP54T consisted of biphosphatidylglycerol, phosphatidylglycerol, phosphatidylglycerol phosphate methyl ester, phosphatidylglycerol sulfate, sulfated mannosyl glucosyl diether and a minor-phospholipid. The predominant respiratory quinone was menaquinone-8 (MK-8) (83  %), and a minor amount of MK-8(VIII-H2) (17  %) was also detected. The G+C content of the genomic DNA of this strain was 63.1 mol%. Based on the phenotypic, chemotaxonomic and phylogenetic data presented in this study, strain ASP54T represents a novel species of the genus Halovenus, for which the name Halovenus salina sp. nov. is proposed. The type strain is ASP54T ( = CECT 8749T = IBRC-M 10946T = JCM 30072T).

2012 ◽  
Vol 62 (Pt_3) ◽  
pp. 705-709 ◽  
Author(s):  
Rong Jin ◽  
Jing Su ◽  
Hong-Yu Liu ◽  
Yu-Zhen Wei ◽  
Qiu-Ping Li ◽  
...  

A novel alphaproteobacterial strain, designated CPCC 100156T, was isolated from a forest soil sample collected from Hainan Island, South China, and subjected to taxonomic investigation using a polyphasic approach. The pink- to rosy-coloured colonies on TSA and YM agar were smooth and moist. Good growth occurred at 28–32 °C and at pH 7.0–7.5. The respiratory quinone was ubiquinone-9. The polar lipids consisted of phosphatidylcholine (PC), hydroxyphosphatidylethanolamine (OH-PE), phosphatidylglycerol (PG), diphosphatidylglycerol (DPG) and two unidentified aminolipids (AL1, AL2), with a minor amount of ninhydrin-positive phosphoglycolipid. (NPG). The major cellular fatty acids were summed feature 8 (C18 : 1ω7c /C18 : 1ω6c) (49.5 %), summed feature 3 (C16 : 1ω7c/C16 : 1ω6c) (22.5 %), and C16 : 0 (14.0 %). The G+C content of the genomic DNA was 70.3 mol%. The organism showed 16S rRNA gene sequence similarity of 97.37 % with Belnapia moabensis DSM 16746T. Phylogenetic analyses based on 16S rRNA gene sequences showed that the isolate belonged to the family Acetobacteraceae and consistently formed a robust cluster with Belnapia moabensis DSM 16746T in the phylogenetic tree. The DNA–DNA hybridization value between the new isolate and Belnapia moabensis DSM 16746T was 45.6 %. On the basis of the taxonomic evidence, it is proposed that strain CPCC 100156T represents a novel species, for which the name Belnapia rosea sp. nov. is proposed. The type strain is CPCC 100156T ( = DSM 23312T = CGMCC 1.10758T). The description of the genus Belnapia is emended accordingly.


2013 ◽  
Vol 63 (Pt_2) ◽  
pp. 703-708 ◽  
Author(s):  
Dong-Heon Lee ◽  
Sun Ja Cho ◽  
Suk Min Kim ◽  
Sun Bok Lee

A novel bacterium, designated strain F051-1T, isolated from a seawater sample collected from the coast at Damupo beach in Pohang, Korea, was investigated in a polyphasic taxonomic study. Cells were yellow-pigmented, strictly aerobic, Gram-staining-negative and rod-shaped. The temperature, pH and NaCl ranges for growth were 4–30 °C, pH 6.0–9.0 and 1.0–6.0 % (w/v), respectively. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain F051-1T belongs to the genus Psychroserpens in the family Flavobacteriaceae . Its closest relatives were Psychroserpens burtonensis ACAM 188T (96.8 % 16S rRNA gene sequence similarity) and Psychroserpens mesophilus KOPRI 13649T (95.7 %). The major cellular fatty acids were iso-C15 : 0, iso-C15 : 1 G and anteiso-C15 : 0. The polar lipid profile consisted of a mixture of phosphatidylethanolamine, two unidentified aminolipids, one unidentified phospholipid and eight unidentified lipids. The major respiratory quinone was menaquinone-6 and the genomic DNA G+C content of the strain was 33.5 mol%. On the basis of phenotypic, phylogenetic and genotypic data, strain F051-1T represents a novel species within the genus Psychroserpens , for which the name Psychroserpens damuponensis sp. nov. is proposed. The type strain is F051-1T ( = KCTC 23539T  = JCM 17632T).


2010 ◽  
Vol 60 (2) ◽  
pp. 382-386 ◽  
Author(s):  
Byoung-Jun Yoon ◽  
Dong-Heon Lee ◽  
Bong-Jo Kang ◽  
Hyung-Yeel Kahng ◽  
You-Sung Oh ◽  
...  

A novel marine, Gram-staining-negative, yellow-pigmented, rod-shaped bacterial strain, designated CNU004T, was isolated from a seawater sample collected on the coastline of Jeju Island, South Korea. The strain was strictly aerobic, non-flagellated, non-gliding and oxidase- and catalase-positive. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain CNU004T belongs to a distinct lineage in the family Flavobacteriaceae. Strain CNU004T exhibited levels of 16S rRNA gene sequence similarity of 93.8–93.9 % to its nearest phylogenetic neighbours, members of the genera Gaetbulibacter, Yeosuana and Algibacter. The new isolate required sea salts or artificial seawater for growth. The optimum ranges of temperature and pH for growth were 30–35 °C and pH 7.0–8.0. The DNA G+C content of strain CNU004T was 37.7 mol%. The major fatty acids were iso-C15 : 0, iso-C15 : 1 G, iso-C17 : 0 3-OH and iso-C15 : 0 3-OH. Menaquinone-6 was the major respiratory quinone. Zeaxanthin was the major carotenoid pigment produced, and flexirubin-type pigments were not produced. Strain CNU004T was able to degrade starch and agar. Based on its phenotypic and genotypic characteristics and on the phylogenetic evidence presented, strain CNU004T is considered to represent a novel species of a new genus in the family Flavobacteriaceae, for which the name Hyunsoonleella jejuensis gen. nov., sp. nov. is proposed. The type strain of Hyunsoonleella jejuensis sp. nov. is CNU004T (=KCTC 22242T =DSM 21035T).


2015 ◽  
Vol 65 (Pt_12) ◽  
pp. 4809-4815 ◽  
Author(s):  
Xiang Wang ◽  
Hong-Xing Yang ◽  
Ying-Kun Zhang ◽  
Shi-Jun Zhu ◽  
Xiao-Wei Liu ◽  
...  

A yellow-pigmented bacterial strain, designated Y2T, was isolated from farmland soil in Bengbu, Anhui province, China. Cells of strain Y2T were Gram-stain-negative, strictly aerobic, non-motile and rod-shaped. Strain Y2T grew optimally at pH 7.0, 30 °C and in the presence of 2 % (w/v) NaCl. The DNA G+C content was 68.9 mol%. The major fatty acids (>5 %) were iso-C15 : 0, iso-C17 : 0, summed feature 9 (C16 : 0 10-methyl and/or iso-C17 : 1ω9c), iso-C11 : 0 3-OH and iso-C11 : 0. The major respiratory quinone was ubiquinone-8 (Q-8), and the major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. Phylogenetic analysis of the 16S rRNA gene sequences showed that strain Y2T was most closely related to Luteimonas mephitis B1953/27.1T (99.1 % 16S rRNA gene sequence similarity), followed by Luteimonas lutimaris G3T (98.6 %), Luteimonas abyssi XH031T (96.2 %) and Luteimonas aquatica RIB1-20T (96.0 %). Strain Y2T exhibited low DNA–DNA relatedness with Luteimonas mephitis B1953/27.1T (43.6 ± 0.5 %) and Luteimonas lutimaris G3T (43.9 ± 2.1 %). On the basis of phenotypic, genotypic and phylogenetic evidence, strain Y2T represents a novel species of the genus Luteimonas, for which the name Luteimonas soli sp. nov. is proposed. The type strain is Y2T ( = ACCC 19799T = KCTC 42441T).


2015 ◽  
Vol 65 (Pt_4) ◽  
pp. 1127-1132 ◽  
Author(s):  
Jing Liang ◽  
Ji Liu ◽  
Xiao-Hua Zhang

A Gram-stain-negative, strictly aerobic and rod-shaped motile bacterium with peritrichous flagella, designated strain LZB041T, was isolated from offshore surface seawater of the East China Sea. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain LZB041T formed a lineage within the family ‘ Aurantimonadaceae ’ that was distinct from the most closely related genera Aurantimonas (96.0–96.4 % 16S rRNA gene sequence similarity) and Aureimonas (94.5–96.0 %). Optimal growth occurred in the presence of 1–7 % (w/v) NaCl, at pH 7.0–8.0 and at 28–37 °C. Ubiquinone-10 was the predominant respiratory quinone. The major fatty acids (>10 % of total fatty acids) were C18 : 1ω7c and/or C18 : 1ω6c (summed feature 8) and cyclo-C19 : 0ω8c. The major polar lipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylmonomethylethanolamine, one unknown aminolipid, one unknown phospholipid and one unknown polar lipid. The DNA G+C content of strain LZB041T was 71.3 mol%. On the basis of polyphasic analysis, strain LZB041T is considered to represent a novel species of a new genus in the class Alphaproteobacteria , for which the name Jiella aquimaris gen. nov., sp. nov. is proposed. The type strain of the type species is LZB041T ( = JCM 30119T = MCCC 1K00255T).


2015 ◽  
Vol 65 (Pt_8) ◽  
pp. 2397-2402 ◽  
Author(s):  
Zenghu Zhang ◽  
Xin Gao ◽  
Long Wang ◽  
Xiao-Hua Zhang

A Gram-stain-negative, strictly aerobic, non-flagellated, non-gliding, oxidase- and catalase-positive, white-pigmented and rod-shaped bacterium, designated strain XH122T, was isolated from a surface seawater sample collected from the South Pacific Gyre (45° 58′ E 163° 11′ S) during Integrated Ocean Drilling Program Expedition 329.Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain XH122T belonged to the genus Leucothrix and showed highest 16S rRNA gene sequence similarity to Leucothrix mucor DSM 2157T (94.3 %). It showed lower sequence similarities ( < 90.7 %) with all other representatives of the class Gammaproteobacteria. Optimal growth occurred in the presence of 2 % (w/v) NaCl, at pH 8.0 and at 28 °C. The DNA G+C content of strain XH122T was 46.2 mol%. The major fatty acids were C16 : 0, C16 : 1ω9c and C18 : 1ω9c. The major respiratory quinone was ubiquinone-8 (Q-8). The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. On the basis of data from this polyphasic study, strain XH122T is considered to represent a novel species of the genus Leucothrix, for which the name Leucothrix pacifica sp. nov. is proposed. The type strain is XH122T ( = DSM 25984T = JCM 18388T).


2011 ◽  
Vol 61 (2) ◽  
pp. 330-333 ◽  
Author(s):  
Byoung-Jun Yoon ◽  
Duck-Chul Oh

A Gram-negative, yellow-pigmented, rod-shaped, strictly aerobic, non-flagellated, oxidase- and catalase-positive, marine bacterium, designated A2T, was isolated from a marine sponge, Hymeniacidon flavia, collected from the coast of Jeju Island, South Korea. Phylogenetic analysis based on nearly complete 16S rRNA gene sequences revealed that strain A2T was a member of the family Flavobacteriaceae. Its closest relatives were Formosa agariphila KMM 3901T and Formosa algae KMM 3553T (96.99 and 96.98 % 16S rRNA gene sequence similarity, respectively). DNA–DNA relatedness between strain A2T and F. agariphila KMM 3901T and F. algae KMM 3553T was 14.1 and 26.8 %, respectively. The dominant fatty acids (>5 %) of strain A2T were iso-C15 : 0 (33.9 %), iso-C17 : 0 3-OH (20.8 %), iso-C15 : 1 G (10.5 %) and iso-C15 : 0 3-OH (6.1 %). The DNA G+C content of strain A2T was 36.0 mol% and the major respiratory quinone was MK-6. On the basis of phenotypic and phylogenetic analysis, strain A2T represents a novel species of the genus Formosa, for which the name Formosa spongicola sp. nov. is proposed. The type strain is A2T (=KCTC 22662T =DSM 22637T).


2011 ◽  
Vol 61 (11) ◽  
pp. 2664-2669 ◽  
Author(s):  
Meyyappan Arumugam ◽  
Anindita Mitra ◽  
Arnab Pramanik ◽  
Malay Saha ◽  
Ratan Gachhui ◽  
...  

A novel actinomycete producing 2-allyloxyphenol, designated strain MS1/7T, was isolated from sediments of the Sundarbans mangrove forest, India. Growth on International Streptomyces Project (ISP) media 2, 3, 4, 5 and 7 produced olive green to grey aerial hyphae that carried smooth-surfaced spores in a flexuous (Rectiflexibiles) arrangement. The strain contained ll-diaminopimelic acid, but no diagnostic sugars in whole-cell hydrolysates. Hexa-, octa- and a minor amount of tetra-hydrogenated menaquinones with nine isoprene units [MK-9 (H4, H6, H8 and H10)] were present as isoprene analogues. Diagnostic phospholipids were phosphatidylethanolamine and diphosphatidylglycerol. The predominant fatty acids were anteiso-C15 : 0 (34.80 %), iso-C16 : 0 (16.45 %), C16 (10.53 %) and anteiso-C17 : 0 (10.92 %). The strain showed greater than 99 % 16S rRNA gene sequence similarity to the type strains of several recognized species of the genus Streptomyces, but in the phylogenetic tree based on 16S rRNA gene sequences it formed a distinct phyletic line and demonstrated closest relationships to viomycin-producers (Streptomyces californicus NRRL B-1221T, Streptomyces floridae MTCC 2534T and Streptomyces puniceus NRRL B-2895T). However, strain MS1/7T could be distinguished from these and other closely related species based on low levels of DNA–DNA relatedness (<44 %) and disparate physiological features, principally amino acid utilization and growth in NaCl. Strain MS1/7T is therefore suggested to represent a novel species of the genus Streptomyces, for which the name Streptomyces sundarbansensis sp. nov. is proposed. The type strain is MS1/7T ( = MTCC 10621T = DSM 42019T).


2004 ◽  
Vol 54 (6) ◽  
pp. 2185-2190 ◽  
Author(s):  
Hiroyuki Ohta ◽  
Reiko Hattori ◽  
Yuuji Ushiba ◽  
Hisayuki Mitsui ◽  
Masao Ito ◽  
...  

The taxonomic position of a halo- and organo-sensitive, oligotrophic soil bacterium, strain S213T, was investigated. Cells were Gram-negative, non-motile, strictly aerobic, yellow-pigmented rods of short to medium length on diluted nutrient broth. When 0·1–0·4 % (w/v) NaCl was added to diluted media composed of peptone and meat extract, growth was inhibited with increasing NaCl concentration and the cells became long aberrant forms. When 6 mM CaCl2 was added, the cells grew quite normally and aberrant cells were no longer found at 0·1–0·5 % (w/v) NaCl. Chemotaxonomically, strain S213T contains chemical markers that indicate its assignment to the Sphingomonadaceae: the presence of ubiquinone Q-10 as the predominant respiratory quinone, C18 : 1 and C16 : 0 as major fatty acids, C14 : 0 2-OH as the major 2-hydroxy fatty acid and sphingoglycolipids. 16S rRNA gene sequence analysis indicated that strain S213T belongs to the genus Sphingomonas, exhibiting high sequence similarity to the 16S rRNA gene sequences of Sphingomonas mali IFO 15500T (98·3 %), Sphingomonas pruni IFO 15498T (98·0 %), Sphingomonas asaccharolytica IFO 15499T (97·9 %) and Sphingomonas echinoides DSM 1805T (97·8 %). The results of DNA–DNA hybridization experiments and its phenotypic characteristics clearly distinguished the strain from its nearest neighbours and demonstrate that strain S213T represents a novel Sphingomonas species, for which the name Sphingomonas oligophenolica sp. nov. is proposed. The type strain is S213T (=JCM 12082T=CIP 107926T).


2015 ◽  
Vol 65 (Pt_6) ◽  
pp. 1908-1914 ◽  
Author(s):  
Kaibiao Wang ◽  
Lei Zhang ◽  
Yang Yang ◽  
Yuanyuan Pan ◽  
Lin Meng ◽  
...  

A Gram-stain-positive, endospore-forming, moderately halophilic bacterial strain, NEAU-ST10-40T, was isolated from a saline and alkaline soil in Anda City, China. It was strictly aerobic, rod-shaped and motile by peritrichous flagella. It formed light yellow colonies and grew at NaCl concentrations of 3–15 % (w/v) (optimum, 8 %, w/v), at pH 7.0–9.0 (optimum, pH 8.0) and at 4–60 °C (optimum, 30 °C). It contained meso-diaminopimelic acid in the cell-wall peptidoglycan. Phylogenetic analysis based on 16S rRNA gene sequences indicated that it belonged to the genus Halobacillus. Levels of 16S rRNA gene sequence similarity between strain NEAU-ST10-40T and the type strains of related species of the genus Halobacillus ranged from 98.8 % (Halobacillus alkaliphilus FP5T) to 97.1 % (Halobacillus kuroshimensis IS-Hb7T). DNA–DNA hybridization relatedness values between strain NEAU-ST10-40T and H. alkaliphilus DSM 18525T, Halobacillus campisalis KCTC 13144T, Halobacillus yeomjeoni DSM 17110T, Halobacillus halophilus DSM 2266T, Halobacillus litoralis DSM 10405T, Halobacillus dabanensis DSM 18199T, Halobacillus salinus DSM 18897T, Halobacillus naozhouensis DSM 21183T, Halobacillus trueperi DSM 10404T and Halobacillus salsuginis DSM 21185T were from 43 ± 1 to 19 ± 1 % (mean ± sd). The DNA G+C content was 39.3 mol%. The major fatty acids (>10 %) were anteiso-C15:0, anteiso-C17:0 and iso-C16:0, the only respiratory quinone detected was MK-7, and polar lipids consisted of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, two unknown phospholipids and three unknown lipids. On the basis of the data presented, strain NEAU-ST10-40T is considered to represent a novel species, for which the name Halobacillus andaensis sp. nov. is proposed. The type strain is NEAU-ST10-40T ( = CGMCC 1.12153T = DSM 25866T).


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