Abstract:
:The anr gene of Pseudomonas aeruginosa encodes a transcriptional regulator of anaerobic gene expression, homologous to the Fnr protein of Escherichia coli. We report here that Anr has a role in regulating the activity of the aerobic respiratory chain of P. aeruginosa. Strains with internal deletions in their anr gene had lowered levels of membrane bound cytochromes whilst the activity of the cytochrome c oxidase, cytochrome co (likely to be a cytochrome cbb3-type oxidase), and the cyanide-insensitive respiratory pathway was markedly higher than in the wild-type strains. These data, and the finding that provision of multiple copies of the anr gene led to severe repression of these respiratory activities, suggest that Anr is a repressor of aerobic respiratory pathways and possibly the terminal oxidases themselves. In contrast, Anr activated cytochrome c peroxidase, a respiratory chain linked enzyme induced under low oxygen conditions.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
Ray A,Williams HDdoi
10.1111/j.1574-6968.1997.tb12732.xsubject
Has Abstractpub_date
1997-11-15 00:00:00pages
227-32issue
2eissn
0378-1097issn
1574-6968pii
S0378-1097(97)00429-1journal_volume
156pub_type
杂志文章abstract::The impact of four electron acceptors on hydrocarbon-induced methanogenesis was studied. Methanogenesis from residual hydrocarbons may enhance the exploitation of oil reservoirs and may improve bioremediation. The conditions to drive the rate-limiting first hydrocarbon-oxidizing steps for the conversion of hydrocarbon...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2010.02165.x
更新日期:2011-02-01 00:00:00
abstract::The essential oil of German chamomile showed specific inhibition toward aflatoxin G(1) (AFG(1)) production, and (E)- and (Z)-spiroethers were isolated as the active compounds from the oil. The (E)- and (Z)-spiroethers inhibited AFG(1) production of Aspergillus parasiticus with inhibitory concentration 50% (IC(50)) val...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2008.01195.x
更新日期:2008-07-01 00:00:00
abstract::In the transition to the post-petroleum economy, there is a growing demand for novel enzymes with high process performances to replace traditional chemistry with a more 'green' approach. To date, microorganisms encompass the richest source of industrial biocatalysts, but the Earth-living microbiota remains largely unt...
journal_title:FEMS microbiology letters
pub_type: 杂志文章,评审
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更新日期:2017-11-15 00:00:00
abstract::A chemiluminescence immunoassay (CLIA) was developed to detect Cryptosporidium parvum growth in Madin-Darby canine kidney (MDCK) cell cultures. Optimal results were obtained when MDCK cells were plated at a density of 1 x 10(4) cells/well (96-well plate) and maintained as a monolayer for 4 days prior to infection with...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1996.tb08057.x
更新日期:1996-03-01 00:00:00
abstract::The production of exopolysaccharides (EPSs) by a mucoid clinical isolate of Burkholderia cepacia involved in infections in cystic fibrosis patients, was studied. Depending on the growth conditions, this strain was able to produce two different EPS, namely PS-I and PS-II, either alone or together. PS-I is composed of e...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2001.tb10792.x
更新日期:2001-08-07 00:00:00
abstract::Pneumocystis carinii pneumonia was induced in rats by chronic corticosteroid immunosuppression. The parasite was separated from virtually all contaminating host cells using the technique of unit gravity sedimentation. Cellular contamination was routinely below 0.02%. The same technique allowed partial separation of th...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(90)90102-v
更新日期:1990-06-15 00:00:00
abstract::Sphingobacterium sp. RB, a novel bacterial strain isolated from a soil sample, was able to utilize para-nitrophenol (PNP) as sole source of carbon and energy at high concentrations (1.0-5.0 mM). The culture completely degraded 3.0 mM PNP within 36 h with proportionate increase in biomass. With 5.0 mM PNP (700 ppm), 70...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnz168
更新日期:2019-07-01 00:00:00
abstract::Two thermophilic bacteria, which are capable of growing on starch at 60-70 degrees C under anaerobic conditions, were isolated from a sugar refinery in Uelzen and from Solar lake in Israel. On the basis of their physiological characteristics they were identified as Clostridium thermohydrosulfuricum Uel 1 and C. thermo...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(90)90429-t
更新日期:1990-05-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章,评审
doi:10.1111/j.1574-6968.1999.tb13414.x
更新日期:1999-02-15 00:00:00
abstract::In this study we investigated the potential prebiotic effect of natural (NS) and blanched (BS) almond skins, the latter being a byproduct of the almond-processing industry. A full model of the gastrointestinal tract, including in vitro gastric and duodenal digestion, followed by colonic fermentation using mixed faecal...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2010.01898.x
更新日期:2010-03-01 00:00:00
abstract::A real-time nucleic acid sequence-based amplification assay, targeting tmRNA, was designed for the rapid identification of Staphylococcus aureus. The selectivity of the assay was confirmed against a panel of 76 Staphylococcus strains and species and 22 other bacterial species. A detection limit of 1 cell equivalent wa...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2009.01822.x
更新日期:2009-12-01 00:00:00
abstract::Acetone-butanol-ethanol (ABE) fermentation is a metabolic process of clostridia that produces bio-based solvents including butanol. It is enabled by an underlying metabolic reaction network and modulated by cellular gene regulation and environmental cues. Mathematical modeling has served as a valuable strategy to faci...
journal_title:FEMS microbiology letters
pub_type: 杂志文章,评审
doi:10.1093/femsle/fnw074
更新日期:2016-05-01 00:00:00
abstract::The photoinduced bactericidal capacity of TiO(2) based films was evaluated, using as model organism Pseudomonas aeruginosa. Thin films were obtained by spray pyrolysis; they included undoped, Cu doped, and Al doped TiO(2). Scanning electron microscopy was used to observe the final effect of the irradiated films upon t...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2002.tb11222.x
更新日期:2002-06-04 00:00:00
abstract::A Gram-negative, facultatively anaerobic, motile and slightly curved rod-shaped bacterium (BFLP-4(T)) was isolated from the faeces of wild seahorses (Hippocampus guttulatus) captured in northwest Spain (Toralla, Galicia). Strain BFLP-4(T) grew at 10-35 degrees C and pH 5-9 (optimally at 20 degrees C and pH 7.2) and at...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2010.01955.x
更新日期:2010-06-01 00:00:00
abstract::The transcriptional repressor CcpN from Bacillus subtilis mediates the CcpA-independent catabolite repression of three genes, sr1, encoding a small regulatory RNA, and two gluconeogenesis genes, gapB and pckA. The intracellular concentration of CcpN was determined to be around 4000 molecules per cell. The B. subtilis ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2009.01754.x
更新日期:2009-10-01 00:00:00
abstract::Pseudomonas sp. TLC6-6.5-4 is a multiple metal resistant plant growth-promoting bacteria isolated from copper-contaminated lake sediments. In this study, a comprehensive analysis of genes involved in copper resistance was performed by generating a library of transposon (Tn5) mutants. Two copper-sensitive mutants with ...
journal_title:FEMS microbiology letters
pub_type: 信件
doi:10.1111/j.1574-6968.2012.02646.x
更新日期:2012-10-01 00:00:00
abstract::Researchers studying both cellular and viral disease agents in the laboratory have become infected since the early days of microbiology 150 years ago. However, in the early 21st century, new concerns about bioweapons being used to generate terror and also with a series of newly emerging or newly understood disease-cau...
journal_title:FEMS microbiology letters
pub_type: 杂志文章,评审
doi:10.1093/femsle/fnu008
更新日期:2015-01-01 00:00:00
abstract::Acinetobacter baumanii, which may be found in water, is an important emerging hospital-acquired pathogen. Free-living amoebae can be recovered from the same water networks, and it has been shown that these protozoa may support the growth of other bacteria. In this paper, we have studied potential relationships between...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2011.02261.x
更新日期:2011-06-01 00:00:00
abstract::The transport of radioactively labelled uracil into submerged mycelium of T. viride was measured by means of a membrane filtration technique. It was found to be time-dependent (up to 90 min) and concentration-dependent (up to 8 mmol l-1). Its concentration dependence was biphasic and consisted from the saturatable par...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1999.tb13427.x
更新日期:1999-02-15 00:00:00
abstract::In order to investigate whether the iron acquisition mechanisms of Staphylococcus aureus are induced by iron restriction in vitro, we examined S. aureus ATCC 6538 for production of siderophore and expression of transferrin-binding protein (SA-tbp) in normal or deferrated brain heart infusion broth (BHI). Siderophore p...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1998.tb13020.x
更新日期:1998-06-01 00:00:00
abstract::Strains of the filamentous gliding bacterium Vitreoscilla, LB13 and C1, are shown to be highly sensitive to UV-A (320-400 nm), with an LD50 of less than 20 kJ m(-2). Vitreoscilla LB13 can be protected from UV-A by including superoxide dismutase and catalase, separately or in combination, during the exposure, indicatin...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/S0378-1097(03)00420-8
更新日期:2003-07-15 00:00:00
abstract::The small heat shock protein (smHsp) Lo18 from lactic acid bacteria Oenococcus oeni reduces in vitro thermal aggregation of proteins and modulates the membrane fluidity of native liposomes. An absence of information relating to the way in which the smHsp demonstrates a stabilizing effect for both proteins and membrane...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2010.01999.x
更新日期:2010-08-01 00:00:00
abstract::A novel 36-kDa endochitinase named chit36 has been isolated and characterized from Trichoderma harzianum Rifai TM. Partial amino acid sequences from the purified protein were used to clone the fungal cDNA, based on polymerase chain reaction with degenerate primers. The complete open reading frame encodes a 344-amino a...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2001.tb10710.x
更新日期:2001-06-25 00:00:00
abstract::We isolated nickel-resistant bacterium from soil in order to identify a novel nickel resistance determinant. Using 16S rRNA gene sequencing, an isolate was identified as Enterobacter sp. Ni15. This species showed a medium-level (resistant to up to 10 mM) nickel resistance in nutrient-rich media. Enterobacter sp. Ni15 ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2006.00130.x
更新日期:2006-04-01 00:00:00
abstract::The presence and genetic content of integrons was investigated in eight Salmonella enteritica Typhimurium DT104 isolates from different pig herds in Denmark. Two different integrons were identified using PCR and sequencing. Each of the integrons carried a single resistance cassette in addition to the sull and qacE del...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1998.tb12887.x
更新日期:1998-03-01 00:00:00
abstract::Pythium drechsleri Paul was described as a new species from soil samples taken in a salt-marsh of Arzew, Algeria [Paul, B. (1988) Une nouvelle espèce de Pythium isolée d'une saline de l'ouest Algérien. Cryptogam. Mycol. 9, 325-333]. The name of the fungus, P. drechsleri, is a nomen invalidum, as it is a later homonym ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2000.tb08941.x
更新日期:2000-02-01 00:00:00
abstract::A chromosomal DNA fragment from Streptomyces antibioticus ATCC11891 was isolated by its ability to stimulate actinorhodin and undecylprodigiosin biosynthesis in Streptomyces lividans TK21. This fragment includes two open reading frames, whose deduced translated products resemble enzymes involved in sulfur metabolism (...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1997.tb10216.x
更新日期:1997-02-01 00:00:00
abstract::Twelve strains of Candida albicans were grown in defined medium which had been deferrated by ion-exchange chromatography and then supplemented with FeCl3 to give iron concentrations ranging from 0.026 microM (growth-limiting) to 0.8 microM (excess). All of the strains secreted hydroxamate-type siderophores; phenolate ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(91)90214-u
更新日期:1991-05-01 00:00:00
abstract::The gene (open reading frame Tm1155, g6pd) encoding glucose-6-phosphate dehydrogenase (G6PD, EC 1.1.1.49) of the hyperthermophilic bacterium Thermotoga maritima was cloned and functionally expressed in Escherichia coli. The purified recombinant enzyme is a homodimer with an apparent molecular mass of 95 kDa composed o...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2002.tb11443.x
更新日期:2002-11-05 00:00:00
abstract::Production of the gene transfer agent of Rhodobacter capsulatus, RcGTA, is dependent upon several cellular regulatory systems, including a putative phosphorelay involving the CtrA and CckA proteins. These proteins are also involved in flagellar motility in R. capsulatus. The interactions of proteins in this system are...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2012.02553.x
更新日期:2012-06-01 00:00:00