| thalassospira lucentensis gen. nov., sp. nov., a new marine member of the alpha-proteobacteria. | a novel bacterium from the mediterranean sea was isolated under oligotrophic conditions at in situ temperature after prolonged continuous culture. the isolates were initially characterized by partial 16s rrna gene sequencing. similarity searches of one of the isolates, qmt2t, indicated high sequence identity to the well-characterized rhodospirillum rubrum, [aquaspirillum] itersonii and [oceanospirillum] pusillum micro-organisms, which are representatives of the alpha-subclass of the proteobacter ... | 2002 | 12148640 |
| phylogenetic analysis of a biofilm bacterial population in a water pipeline in the gulf of mexico. | the aim of this study was to assess the bacterial diversity associated with a corrosive biofilm in a steel pipeline from the gulf of mexico used to inject marine water into the oil reservoir. several aerobic and heterotrophic bacteria were isolated and identified by 16s rrna gene sequence analysis. metagenomic dna was also extracted to perform a denaturing gradient gel electrophoresis analysis of ribosomal genes and to construct a 16s rrna gene metagenomic library. denaturing gradient gel electr ... | 2006 | 16958915 |
| thalassospira xiamenensis sp. nov. and thalassospira profundimaris sp. nov. | two bacterial strains, m-5t and wp0211t, were isolated from the surface water of a waste-oil pool in a coastal dock and from a deep-sea sediment sample from the west pacific ocean, respectively. analysis of 16s rrna gene sequences indicated that both strains belonged to the class alphaproteobacteria and were closely related to thalassospira lucentensis (96.1 and 96.2 %, gene sequence similarity, respectively). based on the results of physiological and biochemical tests, as well as dna-dna hybrid ... | 2007 | 17267971 |
| thalassospiramides a and b, immunosuppressive peptides from the marine bacterium thalassospira sp. | [structure: see text] two new cyclic peptides, thalassospiramides a and b (1 and 2), were isolated from a new member of the marine alpha-proteobacterium thalassospira. the thalassospiramides, the structures of which were assigned by combined spectral and chemical methods, bear unusual gamma-amino acids and show immunosuppressive activity in an interleukin-5 production inhibition assay (ic50 = 5 mum for thalassospiramide b). | 2007 | 17373804 |
| thalassospira tepidiphila sp. nov., a polycyclic aromatic hydrocarbon-degrading bacterium isolated from seawater. | a gram-negative, mesophilic bacterial strain, designated 1-1b(t), which degrades polycyclic aromatic hydrocarbons, was isolated from petroleum-contaminated seawater during a bioremediation experiment. a 16s rrna gene sequence analysis indicated that the isolate was affiliated with the genus thalassospira in the alphaproteobacteria; the sequence was found to be most similar to those of thalassospira profundimaris wp0211(t) (99.8 %), thalassospira xiamenensis m-5(t) (98.2 %) and thalassospira luce ... | 2008 | 18319483 |
| biodiversity of polycyclic aromatic hydrocarbon-degrading bacteria from deep sea sediments of the middle atlantic ridge. | the bacteria involved in the biodegradation of polycyclic aromatic hydrocarbons (pahs) in deep sea subsurface environments are largely unknown. in order to reveal their biodiversity, sediments from 2.2 m under the bottom surface at a water depth of 3542 m were sampled on the middle atlantic ridge with a gravity column sampler. the sediments were promptly enriched with either crude oil or a mixture of pahs (naphthalene, phenanthrene and pyrene) as the sole carbon source, and further enriched with ... | 2008 | 18445026 |
| kiloniella laminariae gen. nov., sp. nov., an alphaproteobacterium from the marine macroalga laminaria saccharina. | a novel alphaproteobacterium, strain ld81(t), was isolated from the marine macroalga laminaria saccharina. the bacterium is mesophilic and shows a typical marine growth response. it is a chemoheterotrophic aerobe with the potential for denitrification. growth optima are 25 degrees c, ph 5.5 and 3 % nacl. strain ld81(t) has a unique phylogenetic position, not fitting any of the known families of the alphaproteobacteria. the 16s rrna gene sequence revealed a distant relationship to species of seve ... | 2009 | 19196777 |
| thalassospira xianhensis sp. nov., a polycyclic aromatic hydrocarbon-degrading marine bacterium. | a polycyclic aromatic hydrocarbon-degrading marine bacterium, designated strain p-4(t), was isolated from oil-polluted saline soil in xianhe, shangdong province, china. strain p-4(t) was gram-negative-staining with curved to spiral rod-shaped cells and grew optimally with 3-6 % (w/v) nacl and at 30 degrees c. the predominant fatty acids were c(18 : 1)omega7c (35.0 %), c(16 : 0) (25.0 %), c(16 : 1)omega7c (17.9 %), c(14 : 0) (6.2 %) and c(17 : 0) cyclo (5.2 %). the major respiratory quinone was q ... | 2010 | 19666802 |
| [predominant strains of polycyclic aromatic hydrocarbon-degrading consortia from deep sea of the middle atlantic ridge]. | in order to identify the predominant strains of polycyclic aromatic hydrocarbon (pah)-degrading consortia harboring in sea water and surface sediment collected from deep sea of the middle atlantic ridge. | 2009 | 19873754 |
| [diversity of oil-degrading bacteria isolated form the indian ocean sea surface]. | in order to investigate the diversity of oil-degrading bacteria in the surface seawater across the india ocean, and to obtain new oil-degrading bacteria. | 2010 | 21090262 |
| polyphasic approach for assessing changes in an autochthonous marine bacterial community in the presence of prestige fuel oil and its biodegradation potential. | a laboratory experiment was conducted to identify key hydrocarbon degraders from a marine oil spill sample (prestige fuel oil), to ascertain their role in the degradation of different hydrocarbons, and to assess their biodegradation potential for this complex heavy oil. after a 17-month enrichment in weathered fuel, the bacterial community, initially consisting mainly of methylophaga species, underwent a major selective pressure in favor of obligate hydrocarbonoclastic microorganisms, such as al ... | 2011 | 21562979 |
| thalassospira sp. isolated from the oligotrophic eastern mediterranean sea exhibits chemotaxis toward inorganic phosphate during starvation. | the eastern mediterranean sea represents an ultraoligotrophic environment where soluble phosphate limits the growth of bacterioplankton. correspondingly, genes coding for high affinity phosphate uptake systems and for organophosphonate utilization are highly prevalent in the plankton metagenome. chemotaxis toward inorganic phosphate constitutes an alternative strategy to cope with phosphate limitation, but so far has only been demonstrated for two bacterial pathogens and an archaeon, and not in ... | 2011 | 21602377 |
| thalassospira permensis sp. nov., a new terrestrial halotolerant bacterium isolated from a naphthalene-utilizing microbial consortium. | a halotolerant bacterium, strain smb34t, was isolated from a naphthalene-utilizing bacterial consortium obtained from primitive technogeneous soil (vrkhnekamsk salt deposit, perm region, russia) by enrichment procedure. the strain itself was unable to degrade naphthalene and grew at nacl concentrations up to 11% (w/v). the 16s rrna-based phylogenetic analysis showed that the strain belongs to the genus thalassospira. the dna-dna hybridization values between smb34t and the type strains of phyloge ... | 2011 | 22168013 |