Marinococcus tarijensis sp. nov., a moderately halophilic bacterium isolated from a salt mine

2013 ◽  
Vol 63 (Pt_9) ◽  
pp. 3319-3323 ◽  
Author(s):  
Andrea Balderrama-Subieta ◽  
Daniel Guzmán ◽  
Hiroaki Minegishi ◽  
Akinobu Echigo ◽  
Yasuhiro Shimane ◽  
...  

A Gram-stain-positive, coccoid-shaped, halophilic bacterium, strain SR-1T, was isolated from a salt crystal obtained from a mine located in Tarija, Bolivia. The strain was investigated using a polyphasic approach. The optimum conditions for growth of strain SR-1T were reached at 5 % (w/v) NaCl, pH 7.6 and 37–40 °C. The peptidoglycan contained meso-diaminopimelic acid as the diagnostic diamino acid. The isoprenoid quinone was MK-7. The major cellular fatty acids of strain SR-1T were anteiso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0. The DNA G+C content of strain SR-1T was 48.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed a close relationship between strain SR-1T and Marinococcus halophilus JCM 2479T (99.7 % 16S rRNA gene sequence similarity), Marinococcus halotolerans KCTC 19045T (99.4 %) and Marinococcus luteus KCTC 13214T (99.8 %). However, strain SR-1T also showed low levels of DNA–DNA relatedness with these reference strains (47, 61 and 58 %, respectively). On the basis of phenotypic differences and DNA–DNA hybridization results, strain SR-1T is considered to represent a novel species of the genus Marinococcus , for which the name Marinococcus tarijensis sp. nov. is proposed. The type strain is SR-1T ( = LMG 26930T = CECT 8130T).

2012 ◽  
Vol 62 (Pt_12) ◽  
pp. 2903-2909 ◽  
Author(s):  
Rocío Luque ◽  
Victoria Béjar ◽  
Emilia Quesada ◽  
Fernando Martínez-Checa ◽  
Inmaculada Llamas

A moderately halophilic bacterium (strain RS-16T) was isolated from saline soil in Rambla Salada, a Mediterranean hypersaline rambla in Murcia, south-east Spain. Cells of strain RS-16T were Gram-negative rods, oxidase-negative and motile by peritrichous flagella. Strain RS-16T required NaCl for growth, and grew between 1 % and 30 % (w/v) NaCl (optimum, 5–7.5 %), at temperatures of between 4 °C and 41 °C (optimum, 32–37 °C), and at pH values of between 5 and 10 (optimum, pH 7). Strain RS-16T was chemo-organotrophic and its metabolism was respiratory with oxygen and nitrate as terminal electron acceptors. It produced acids from d-glucose and myo-inositol, accumulated poly-β-hydroxyalkanoate granules and produced cream colonies on MY 7.5 % (w/v). The DNA G+C content of strain RS-16T was 56.2 mol%. A comparison of 16S rRNA gene sequences confirmed the relationship of strain RS-16T to species of the genus Halomonas . The most phylogenetically related species was Halomonas cerina SP4T (97.4 %16S rRNA gene sequence similarity). In DNA–DNA hybridization assays strain RS-16T showed DNA–DNA relatedness values of 62.7±3.09 %, 64.5±1.97 % and 64.7±1.74 % to Halomonas cerina CECT 7282T, Halomonas cerina CECT 7284 and Halomonas cerina CECT 7283, respectively. The major fatty acids of strain RS-16T were C18 : 1ω7c and C16 : 0, and the predominant respiratory lipoquinone was ubiquinone, with nine isoprene units (Q-9). On the basis of these data, strain RS-16T is considered to represent a novel species of the genus Halomonas , for which the name Halomonas ramblicola sp. nov. is proposed. The type strain is RS-16T ( = CECT 7896T = LMG 26647T).


2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 345-351 ◽  
Author(s):  
Mohammad Ali Amoozegar ◽  
Maryam Bagheri ◽  
Maryam Didari ◽  
Seyed Abolhassan Shahzedeh Fazeli ◽  
Peter Schumann ◽  
...  

A novel Gram-positive, moderately halophilic bacterium, designated strain X4BT, was isolated from soil around the hypersaline lake Aran-Bidgol in Iran and characterized taxonomically using a polyphasic approach. Cells of strain X4BT were motile rods and formed ellipsoidal endospores at a terminal or subterminal position in swollen sporangia. Strain X4BT was a strictly aerobic bacterium, catalase- and oxidase-positive. The strain was able to grow at NaCl concentrations of 0.5–22.5 % (w/v), with optimum growth occurring at 7.5 % (w/v) NaCl. The optimum temperature and pH for growth were 35 °C and pH 7.0. Analysis of 16S rRNA gene sequence revealed that strain X4BT is a member of the family Bacillaceae , constituting a novel phyletic lineage within this family. Highest sequence similarities were obtained with the 16S rRNA gene sequences of the type strains of Sediminibacillus albus (96.0 %), Paraliobacillus ryukyuensis (95.9 %), Paraliobacillus quinghaiensis (95.8 %) and Sediminibacillus halophilus (95.7 %), respectively. The DNA G+C content of this novel isolate was 35.2 mol%. The major cellular fatty acids of strain X4BT were anteiso-C15 : 0 and anteiso-C17 : 0 and its polar lipid pattern consisted of diphosphatidylglycerol, phosphatidylglycerol, two aminolipids, an aminophospholipid and an unknown phospholipid. The isoprenoid quinones were MK-7 (89 %) and MK-6 (11 %). The peptidoglycan contained meso-diaminopimelic acid as the diagnostic diamino acid. On the basis of 16S rRNA gene sequence analysis in combination with chemotaxonomic and phenotypic data, strain X4BT represents a novel species in a new genus in the family Bacillaceae , order Bacillales for which the name Saliterribacillus persicus gen. nov., sp. nov. is proposed. The type strain of the type species (Saliterribacillus persicus) is X4BT ( = IBRC-M 10629T = KCTC 13827T).


2014 ◽  
Vol 64 (Pt_5) ◽  
pp. 1629-1634 ◽  
Author(s):  
Mustafa Camas ◽  
Aysel Veyisoglu ◽  
Nevzat Sahin

A novel Gram-reaction-positive, rod-shaped, non-motile and mycolic acid-containing strain, CR3272T, isolated from soil, was studied using a polyphasic approach. The organism showed a combination of chemotaxonomic and morphological properties typical of the genus Nocardia . The cell wall contained meso-diaminopimelic acid (type IV) and whole-cell sugars were galactose, glucose, arabinose and xylose. The predominant menaquinone was MK-8(H4cyc). The major phospholipids were diphosphatidylglycerol and phosphatidylinositol mannosides. Major fatty acids were C16 : 0, C18 : 1 cis9, C18 : 0 10-methyl (TBSA) and C16 : 1 cis9. The novel strain formed distinct phyletic line in the Nocardia 16S rRNA gene tree and was closely associated with Nocardia goodfellowii A2012T (98.6 % 16S rRNA gene sequence similarity), Nocardia alba YIM 30243T (98.5 %) and Nocardia caishijiensis F829T (97.9 %). However, DNA–DNA relatedness values and phenotypic data demonstrated that strain CR3272T was clearly distinguished from all closely related species of the genus Nocardia . It is concluded that the organism be classified as representing a novel species of the genus Nocardia , for which the name Nocardia sungurluensis is proposed. The type strain is CR3272T ( = DSM 45714T = KCTC 29094T).


2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 2066-2071 ◽  
Author(s):  
Azahara Pérez-Davó ◽  
Margarita Aguilera ◽  
Alberto Ramos-Cormenzana ◽  
Mercedes Monteoliva-Sánchez

A halophilic, Gram-staining-positive, non-motile, endospore forming rod-shaped bacterial strain, S1LM8T, was isolated from a sediment sample collected from an inland solar saltern located in La Malahá, Granada (Spain). Growth was observed in media containing 7.5–30 % total salts (optimum 15 % total salts), at pH 7–10 (optimum pH 8) and at 15–50 °C (optimum 35–38 °C). The predominant isoprenoid quinone was MK-7. It contained A1γ-type peptidoglycan with meso-diaminopimelic acid as the diagnostic diamino acid. The major cellular fatty acids were anteiso-C15 : 0, iso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0. The G+C content of its genomic DNA was 38.2 mol%. The affiliation of strain S1LM8T with the species of the genus Alkalibacillus was determined by 16S rRNA gene sequence comparison. The most closely related species were Alkalibacillus halophilus YIM 012T with 99.8 % similarity, Alkalibacillus salilacus BH163T with 99.8 % similarity and Alkalibacillus flavidus ISL-17T with 98.1 % similarity between their 16S rRNA gene sequences. However, DNA–DNA relatedness between the novel isolate and the related species of the genus Alkalibacillus was less than 34 %. Based on the phylogenetic, phenotypic and chemotaxonomic features, a novel species, Alkalibacillus almallahensis sp. nov. is proposed. The type strain is S1LM8T ( = CECT 8373T = DSM 27545T).


2014 ◽  
Vol 64 (Pt_10) ◽  
pp. 3565-3570 ◽  
Author(s):  
Mohammad Ali Amoozegar ◽  
Azadeh Shahinpei ◽  
Abbas Akhavan Sepahy ◽  
Ali Makhdoumi-Kakhki ◽  
Shima Sadat Seyedmahdi ◽  
...  

A novel Gram-stain-negative, aerobic, non-endospore-forming, non-pigmented, rod-shaped, slightly halophilic bacterium, designated GBPy5T, was isolated from aquatic plants of the Gomishan wetland, Iran. Cells of strain GBPy5T were motile. Growth occurred with between 1 and 10 % (w/v) NaCl and the isolate grew optimally with 3 % (w/v) NaCl. The optimum pH and temperature for growth of the strain were pH 8.0 and 30 °C, respectively, while it was able to grow over a pH range of 6.5–9.0 and a temperature range of 4–35 °C. Phylogenetic analysis, based on 16S rRNA gene sequences, revealed that strain GBPy5T is a member of the genus Pseudomonas forming a monophyletic branch. The novel strain exhibited 16S rRNA gene sequence similarity of 95.4 % with type strains of Pseudomonas guariconensis PCAVU11T and Pseudomonas sabulinigri J64T, respectively. The major cellular fatty acids of the isolate were C18 : 1ω7c (37.8 %), C16 : 0 (14.9 %), C16 : 1ω7c (12.9 %), C12 : 0 3-OH (7.1 %) and C12 : 0 (7.0 %). The polar lipid pattern of strain GBPy5T comprised phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine and one phospholipid. Ubiquinone 9 (Q-9) was the predominant lipoquinone. The G+C content of the genomic DNA of strain GBPy5T was 59.2 mol%. On the basis of the phenotypic and phylogenetic data, strain GBPY5T represents a novel species of the genus Pseudomonas , for which the name Pseudomonas salegens sp. nov. is proposed. The type strain is GBPy5T ( = IBRC-M 10762T = CECT 8338T).


2015 ◽  
Vol 65 (Pt_5) ◽  
pp. 1561-1566 ◽  
Author(s):  
Jin-Hua Chen ◽  
Xiang-Rong Tian ◽  
Ying Ruan ◽  
Ling-Ling Yang ◽  
Ze-Qiang He ◽  
...  

A novel Gram-stain-positive, motile, catalase- and oxidase-positive, endospore-forming, facultatively anaerobic rod, designated strain JSM 100118T, was isolated from an oyster (Crassostrea hongkongensis) collected from the tidal flat of Naozhou Island in the South China Sea. Strain JSM 100118T was able to grow with 0–13 % (w/v) NaCl (optimum 2–5 %), at pH 5.5–10.0 (optimum pH 7.5) and at 5–50 °C (optimum 30–35 °C). The cell-wall peptidoglycan contained meso-diaminopimelic acid as the diagnostic diamino acid. The predominant respiratory quinone was menaquinone-7 and the major cellular fatty acids were anteiso-C15 : 0, iso-C15 : 0, C16 : 0 and C16 : 1ω11c. The polar lipids consisted of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, an unknown glycolipid and an unknown phospholipid. The genomic DNA G+C content was 35.9 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain JSM 100118T belonged to the genus Bacillus , and was most closely related to Bacillus litoralis SW-211T (98.9 % 16S rRNA gene sequence similarity), Bacillus halosaccharovorans E33T (98.3 %), Bacillus niabensis 4T19T (97.8 %) and Bacillus herbersteinensis D-1,5aT (97.1 %). The combination of results from the phylogenetic analysis, DNA–DNA hybridization, and phenotypic and chemotaxonomic characterization supported the conclusion that strain JSM 100118T represents a novel species of the genus Bacillus , for which the name Bacillus crassostreae sp. nov. is proposed. The type strain is JSM 100118T ( = CCTCC AB 2010452T = DSM 24486T = JCM 17523T).


2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 570-577 ◽  
Author(s):  
Masao Sakai ◽  
Daigo Deguchi ◽  
Akifumi Hosoda ◽  
Tomohiro Kawauchi ◽  
Makoto Ikenaga

A thermophilic, agar-degrading bacterium, strain FAB2T, was isolated from sewage sludge compost. According to phylogenetic analysis based on 16S rRNA gene sequences, strain FAB2T belonged to the family Paenibacillaceae within the phylum Firmicutes . However, FAB2T was different enough at the genus level from closely related species. The percentages of 16S rRNA gene sequence similarity with related organisms were 90.4 % for Thermobacillus xylanilyticus , 91.8 % for Paenibacillus barengoltzii , 89.4 % for Cohnella lupini , 90.1 % for Fontibacillus aquaticus , and 89.0 % for Saccharibacillus sacchari . Morphological and physiological analyses revealed that the strain was motile, rod-shaped, Gram-stain-positive, aerobic and able to form oval endospores in swollen sporangia. Ammonium was required as a nitrogen source while nitrate, nitrite, urea and glutamate were not utilized. Catalase and oxidase activities were weakly positive and positive, respectively. The bacterium grew in the temperature range of 50–65 °C and in media with pH 7.5 to 9.0. Optimal growth occurred at 60 °C and pH 8.0–8.6. Growth was inhibited at pH≤7.0 and NaCl concentrations ≥2.5 % (w/v). In chemotaxonomic characterization, MK-7 was identified as the dominant menaquinone. Major fatty acids were iso-C16 : 0 and C16 : 0. Dominant polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. Phosphatidylcholine was present in a moderate amount. The diamino acid in the cell wall was meso-diaminopimelic acid. The G+C content of the genomic DNA was 49.5 mol% in a nucleic acid study. On the basis of genetic and phenotypic characteristics, strain FAB2T ( = NBRC 109510T = KCTC 33130T) showed characteristics suitable for classification as the type strain of a novel species of a new genus in the family Paenibacillaceae , for which the name Ammoniibacillus agariperforans gen. nov., sp. nov. is proposed.


2014 ◽  
Vol 64 (Pt_12) ◽  
pp. 4115-4119 ◽  
Author(s):  
Parisa Zarparvar ◽  
Mohammad Ali Amoozegar ◽  
Mahdi Moshtaghi Nikou ◽  
Peter Schumann ◽  
Antonio Ventosa

A halophilic actinomycete, strain R4S8T, was isolated from soil of Inche-Broun hypersaline wetland in the north of Iran. The isolate grew aerobically at temperatures of 30–50 °C (optimum 40 °C), pH 6–10 (optimum pH 7.0) and in the presence of 1–15 % (w/v) NaCl (optimum 3–5 %). It formed short and straight to moderately flexuous aerial mycelium without motile elements. The cell wall of strain R4S8T contained meso-diaminopimelic acid as the diamino acid without any diagnostic sugars. The polar lipid pattern consisted of phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylserine, phosphatidylmonomethylethanolamine two unknown phospholipids and one unknown aminophospholipid. It synthesized anteiso-C15 : 0 (44.8 %), iso-C15 : 0 (28.8 %) and iso-C14 : 0 (8.5 %) as major fatty acids. MK-6 was the predominant respiratory quinone. The G+C content of the genomic DNA was 52.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain R4S8T belongs to the family Thermoactinomycetaceae and showed the closest 16S rRNA gene sequence similarity with Desmospora activa IMMIB L-1269T (95.5 %) and Marininema mesophilum SCSIO 10219T (95.3 %). On the basis of phylogenetic analysis and phenotypic characteristics, strain R4S8T represents a novel species in a new genus within the family Thermoactinomycetaceae , for which the name Salinithrix halophila gen. nov., sp. nov. is proposed. The type strain of the type species is R4S8T ( = IBRC-M 10813T = CECT 8506T).


2012 ◽  
Vol 62 (Pt_11) ◽  
pp. 2703-2709 ◽  
Author(s):  
Sathiyaraj Srinivasan ◽  
Giho Park ◽  
Hyejin Yang ◽  
Supyong Hwang ◽  
Yoonjung Bae ◽  
...  

A Gram-stain-positive, strictly aerobic, short-rod-shaped, non-motile strain (designated MJ32T) was isolated from a sludge sample of the Daejeon sewage disposal plant in South Korea. A polyphasic approach was applied to study the taxonomic position of strain MJ32T. Strain MJ32T showed highest 16S rRNA gene sequence similarity to Gordonia hirsuta DSM 44140T (98.1 %) and Gordonia hydrophobica DSM 44015T (97.0 %); levels of sequence similarity to the type strains of other recognized Gordonia species were less than 97.0 %. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain MJ32T belonged to the clade formed by members of the genus Gordonia in the family Gordoniaceae . The G+C content of the genomic DNA of strain MJ32T was 69.2 mol%. Chemotaxonomically, strain MJ32T showed features typical of the genus Gordonia . The predominant respiratory quinone was MK-9(H2), the mycolic acids present had C56–C60 carbon atoms, and the major fatty acids were C16 : 0 (34.6 %), tuberculostearic acid (21.8 %), C16 : 1ω7c (19.5 %) and C18 : 1ω9c (12.7 %). The peptidoglycan type was based on meso-2,6-diaminopimelic acid as the diagnostic diamino acid with glycolated sugars. On the basis of phylogenetic inference, fatty acid profile and other phenotypic properties, strain MJ32T is considered to represent a novel species of the genus Gordonia , for which the name Gordonia caeni sp. nov. is proposed. The type strain is MJ32T ( = KCTC 19771T = JCM 16923T).


Author(s):  
Dong-Wook Hyun ◽  
Hojun Sung ◽  
Pil Soo Kim ◽  
Jae-Yun Lee ◽  
Yun-Seok Jeong ◽  
...  

A polyphasic taxonomic approach was used to characterize a novel bacterium, designated as strain HDW20T, isolated from the intestine of the dark diving beetle Hydrophilus acuminatus. The isolate was Gram-stain-positive, facultatively anaerobic, non-motile, coccus-shaped, and formed pale orange colonies. Phylogenetic analysis based on 16S rRNA gene sequences and genome sequences showed that the isolate belonged to the genus Tessaracoccus in the phylum Actinobacteria and was closely related to T. flavescens SST-39T, T. defluvii JCM 17540T, and T. aquimaris NSG39T, with the highest 16S rRNA gene sequence similarity of 98.5 % and a highest average nucleotide identity (ANI) value of 80.6 %. The major cellular fatty acids were C18 : 1  ω9c and anteiso-C15 : 0. The main respiratory quinone was MK-9 (H4). The major polar lipid components were phosphatidylglycerol and diphosphatidylglycerol. The genomic DNA G+C content was 69.0 %. The isolate contains ʟʟ-diaminopimelic acid, ʟ-alanine, and ʟ-lysine as amino acid components, and ribose, glucose, and galactose as sugar components of the cell wall peptidoglycan. The results of phylogenetic, phenotypic, chemotaxonomic, and genotypic analyses suggested that strain HDW20T represents a novel species within the genus Tessaracoccus . We propose the name Tessaracoccus coleopterorum sp. nov. The type strain is HDW20T (=KACC 21348T=KCTC 49324T=JCM 33674T).


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