the modification of the membrane of oceanomonas baumannii when subjected to both osmotic and organic solvent stress. | oceanomonas baumanniioff a novel halotolerant bacterium which was isolated from the estuary of the river wear (sunderland, uk). when grown in tryptone soya broth it can tolerate high levels of phenol, which is not utilised as a carbon source in this medium. however, the level of tolerance was reduced from 35 mm to 3 mm phenol as salinity increased from 1% to 12% nacl (w/v). increasing salinity up to 12% nacl also decreased the growth rate 8-fold and caused modifications to the cytoplasmic membra ... | 2000 | 10930729 |
reclassification of [pseudomonas] doudoroffii (baumann et al. 1983) into the genus oceanomonas gen. nov. as oceanomonas doudoroffii comb. nov., and description of a phenol-degrading bacterium from estuarine water as oceanomonas baumannii sp. nov. | a bacterium, isolate gb6t, capable of degrading phenol in the presence of elevated salinity was isolated from the estuary of the river wear, uk. the bacterium was subjected to biochemical and molecular analysis to determine its taxonomic status. these studies indicated that the bacterium was a distinct species closely related to [pseudomonas] doudoroffii. however, the phylogenetic analysis indicated that [pseudomonas] doudoroffii was misclassified, as noted previously. analysis of the characteri ... | 2001 | 11211275 |
potassium uptake and retention by oceanomonas baumannii at low water activity in the presence of phenol. | oceanomonas baumannii(t) (atcc 700832) is a halotolerant bacterium capable of degrading phenol, which requires potassium in order for turgor growth to occur in minimal medium containing 5% nacl (w/v). however, at this salinity growth can be inhibited by reduced potassium concentrations. the affinity for potassium (k(s)) was determined to be 219 microm and 408 microm for cultures utilising phenol and succinate respectively as the sole carbon source for growth. rubidium but not caesium could subst ... | 2001 | 11728713 |
combined solvent and water activity stresses on turgor regulation and membrane adaptation in oceanimonas baumannii atcc 700832. | oceanimonas baumannii atcc 700832 is a gram negative marine bacterium capable of utilising phenol as asole carbon source. the ability of the bacterium to tolerate low water activity when utilising either succinate or phenol as a substrate in minimal medium was studied. the membrane lipid and protein composition showed two discreet adaptive phases as salinity increased. firstly, when nacl concentration was increased from 0.15% (w/v), the minimum at which growth was observed, to 1% nacl (w/v), the ... | 2003 | 12776923 |
oceanisphaera litoralis gen. nov., sp. nov., a novel halophilic bacterium from marine bottom sediments. | a polyphasic taxonomic study was performed to characterize a new bacterial isolate, designated kmm 3654(t), from a marine bottom sand sample. the strain was gram-negative, encapsulated, aerobic, moderately halophilic and grew between 0.5 and 10 % nacl and at 4-42 degrees c. its dna g+c content was 56.4 mol%. isolate kmm 3654(t) was phylogenetically closely related to members of the genus oceanimonas, showing 96.7 and 95.6 % 16s rrna gene sequence similarity to oceanimonas doudoroffii dsm 7028(t) ... | 2003 | 14657118 |
phylogenetic relationships among marine alteromonas-like proteobacteria: emended description of the family alteromonadaceae and proposal of pseudoalteromonadaceae fam. nov., colwelliaceae fam. nov., shewanellaceae fam. nov., moritellaceae fam. nov., ferrimonadaceae fam. nov., idiomarinaceae fam. nov. and psychromonadaceae fam. nov. | the phylogenetic relationships among marine alteromonas-like bacteria of the genera alteromonas, pseudoalteromonas, glaciecola, thalassomonas, colwellia, idiomarina, oceanimonas, oceanisphaera, shewanella, moritella, ferrimonas, psychromonas and several other genera of the 'gammaproteobacteria' were studied. results of 16s rrna gene sequence analyses revealed that some members of these genera formed several coherent groups at the family level. characteristic signature oligonucleotides for studie ... | 2004 | 15388743 |
oceanimonas smirnovii sp. nov., a novel organism isolated from the black sea. | a slightly creamy, melanogenic, gram-negative, aerobic bacterium was isolated from seawater sample collected in the karadag natural reserve of the eastern crimea, the black sea. the novel organism was chemoorganotrophic, had no obligate requirement in nacl, tolerated to 12% nacl, grew between 10 and 45 degrees c, was slightly alkaliphilic, and was not able to degrade starch, gelatin, agar, and tween 80. 16s rrna gene sequence-based analyses of the new organism revealed that oceanimonas doudoroff ... | 2005 | 15830805 |
zobellella denitrificans gen. nov., sp. nov. and zobellella taiwanensis sp. nov., denitrifying bacteria capable of fermentative metabolism. | two denitrifying strains of heterotrophic, facultatively anaerobic bacteria, designated zd1(t) and zt1(t), were isolated from sediment samples collected from mangrove ecosystems in taiwan. the isolates were gram-negative. cells grown in broth cultures were straight rods that were motile by means of a single polar flagellum. the isolates grew optimally in 1-3 % nacl, but nacl was not an absolute requirement for growth; only strain zt1(t) grew in 13-14 % nacl. both isolates grew between 10 and 45 ... | 2006 | 16738093 |
detection of glycolate oxidase gene glcd diversity among cultured and environmental marine bacteria. | of eight laboratory cultures of marine gamma- and alpha-proteobacteria tested, growth on glycolate as a sole carbon source was detected for only three species: pseudomonas stutzeri, oceanimonas doudoroffii and roseobacter sp. isolate y3f. degenerate polymerase chain reaction (pcr) primers were designed to amplify glcd, which encodes the d-subunit of the enzyme glycolate oxidase; glcd could be amplified only from those cultures that grew on glycolate. the pcr primers were used to explore glcd div ... | 2006 | 16958750 |
identification of novel denitrifying bacteria stenotrophomonas sp. zz15 and oceanimonas sp. yc13 and application for removal of nitrate from industrial wastewater. | two novel denitrifying bacteria were successfully isolated from industrial wastewater and soil samples. using morphological, biochemical/biophysical and 16s rrna gene analyses, these two bacteria were identified as stenotrophomonas sp. zz15 and oceanimonas sp. yc13, respectively. both of these two bacteria showed efficient no(3) (-)-n removing abilities under a semi-anaerobic condition without obvious accumulation of no(2) (-)-n, n(2)o-n and nh(4) (+)-n. no(3) (-)-n removal from paper mill waste ... | 2009 | 19002594 |
arsenic-resistant bacteria isolated from agricultural soils of bangladesh and characterization of arsenate-reducing strains. | to analyse the arsenic-resistant bacterial communities of two agricultural soils of bangladesh, to isolate arsenic-resistant bacteria, to study their potential role in arsenic transformation and to investigate the genetic determinants for arsenic resistance among the isolates. | 2009 | 19291237 |
isolation, characterization, and use for plant growth promotion under salt stress, of acc deaminase-producing halotolerant bacteria derived from coastal soil. | in total, 140 halotolerant bacterial strains were isolated from both the soil of barren fields and the rhizosphere of six naturally growing halophytic plants in the vicinity of the yellow sea, near the city of incheon in the republic of korea. all of these strains were characterized for multiple plant growth promoting traits, such as the production of indole acetic acid (iaa), nitrogen fixation, phosphorus (p) and zinc (zn) solubilization, thiosulfate (s2o3) oxidation, the production of ammonia ... | 2010 | 21124065 |
oceanisphaera ostreae sp. nov., isolated from seawater of an oyster farm in the south sea, korea, and emended description of the genus oceanisphaera romanenko et al. 2003. | a gram-staining-negative, motile, non-spore-forming and short rod or rod-shaped bacterial strain, t-w6(t), was isolated from seawater of an oyster farm in the south sea, korea. strain t-w6(t) grew optimally at 25 °c and in the presence of 2 % (w/v) nacl. phylogenetic analyses based on 16s rrna gene sequences revealed that strain t-w6(t) joined the cluster comprising oceanisphaera species by a bootstrap resampling value of 90.8 %, and this cluster joined the clade comprising members of the genera ... | 2011 | 21257693 |