The role of quorum sensing in chronic cystic fibrosis Pseudomonas aeruginosa infections.

abstract：:Expression of AT-rich genes from microorganisms such as archaea is often inefficient in Escherichia coli. The trpA and trpB genes encoding the tryptophan synthase subunits were cloned from the hyperthermophilic archaeon Pyrococcus furiosus. No apparent difference in codon bias was found between the genes. However, usi...

journal_title：FEMS microbiology letters

authors： Ishida M,Oshima T,Yutani K

更新日期：2002-11-05 00:00:00

abstract：:To rapidly identify natural isolates of marine bioluminescent bacteria, we developed amplified ribosomal DNA restriction analysis (ARDRA) methods. ARDRA, which is based on the restriction patterns of 16S rRNA gene digested with five enzymes (EcoRI, DdeI, HhaI, HinfI, RsaI), clearly distinguished the 14 species of mari...

journal_title：FEMS microbiology letters

authors： Kita-Tsukamoto K,Wada M,Yao K,Kamiya A,Yoshizawa S,Uchiyama N,Kogure K

更新日期：2006-03-01 00:00:00

abstract：:In sausage, Staphylococcus carnosus increases the levels of methyl ketones which could arise from incomplete beta-oxidation of fatty acids followed by a decarboxylation. The objective of this work was to characterize the beta-decarboxylase activities in cell-free extract. By using different substrates, at least two ki...

journal_title：FEMS microbiology letters

authors： Fadda S,Leroy-Sétrin S,Talon R

更新日期：2003-11-07 00:00:00

abstract：:In this study, 52 Streptococcus suis isolates from pigs in southern China were divided into four known sequence types (STs) and six new STs, using multilocus sequence typing. Ten representative isolates were selected from 10 STs for the analysis of whole genome sequences. Virulence was assessed in 10 isolates, which w...

journal_title：FEMS microbiology letters

authors： Peng L,Lin M,Huang Z,Guo S,Sun H,Yang X

更新日期：2020-03-01 00:00:00

abstract：:A two-step enzymatic synthesis process of 4-hydroxyisoleucine is suggested. In the first step, the aldol condensation of acetaldehyde and alpha-ketobutyrate catalyzed by specific aldolase results in the formation of 4-hydroxy-3-methyl-2-keto-pentanoate (HMKP). In the second step, amination of HMKP by the branched-chai...

journal_title：FEMS microbiology letters

authors： Smirnov SV,Samsonova NN,Novikova AE,Matrosov NG,Rushkevich NY,Kodera T,Ogawa J,Yamanaka H,Shimizu S

更新日期：2007-08-01 00:00:00

abstract：:The prodrug activation system formed by the E. coli codA gene encoding cytosine deaminase (CD) and 5-fluorocytosine (5-FC) developed for selective cancer chemotherapy suffers from a sensitivity limitation in many tumour cells. In an attempt to improve the CD/5-FC suicide association, we combined the E. coli upp gene e...

journal_title：FEMS microbiology letters

authors： Tiraby M,Cazaux C,Baron M,Drocourt D,Reynes JP,Tiraby G

更新日期：1998-10-01 00:00:00

abstract：:Surface antigen one (Sao) is a newly identified protein from the major zoonotic pathogen, Streptococcus suis. In search of functional proteins related to the pathogenesis of Chinese S. suis 2 (SS2), unexpectedly, a variant of Sao protein was obtained. To test its prevalence in S. suis, PCR assay was adopted to address...

journal_title：FEMS microbiology letters

authors： Feng Y,Zheng F,Pan X,Sun W,Wang C,Dong Y,Ju AP,Ge J,Liu D,Liu C,Yan J,Tang J,Gao GF

更新日期：2007-10-01 00:00:00

abstract：:Cry4Ba is a delta-endotoxin produced by Bacillus thuringiensis subsp. israelensis and Cyt2Aa2 is a cytolytic delta-endotoxin produced by B. thuringiensis subsp. darmstadiensis. Cry4Ba produced in Escherichia coli was toxic to Aedes aegypti larvae (LC(50)=140 ng ml(-1)) but virtually inactive to Culex quinquefasciatus ...

journal_title：FEMS microbiology letters

authors： Promdonkoy B,Promdonkoy P,Panyim S

更新日期：2005-11-01 00:00:00

abstract：:Neuraminidase (sialidase), a potential virulence factor in bacteria, was demonstrated in Haemophilus parasuis, an invasive swine pathogen, but not in four other pathogens of the Pasteurellaceae family: H. influenzae, H. somnus, H. paragallinarum, or Actinobacillus pleuropneumoniae. H. parasuis neuraminidase had an aci...

journal_title：FEMS microbiology letters

authors： Lichtensteiger CA,Vimr ER

更新日期：1997-07-15 00:00:00

abstract：:Giardia lamblia is a binucleated, flagellated protozoan parasite that inhabits the upper small intestine of its vertebrate hosts. The entire life cycle, which can be completed in vitro, is simple with cycling between a vegetative trophozoite and a highly resistant cystic form. The parasite is one of the earliest diver...

journal_title：FEMS microbiology letters

authors： Svärd SG,Hagblom P,Palm JE

更新日期：2003-01-21 00:00:00

abstract：:Using a specialized ribosome system, previous studies have identified G791 in Escherichia coli 16S rRNA as an invariant and essential residue for ribosome function. To investigate the functional role of G791, we searched for multicopy suppressors that partially restored the protein synthesis ability of mutant ribosome...

journal_title：FEMS microbiology letters

authors： Song WS,Ryou SM,Kim HM,Jeon CO,Kim JM,Han SH,Kim SW,Szatkiewicz JP,Cunningham PR,Lee K

更新日期：2010-12-01 00:00:00

abstract：:High voltage electroporation has been investigated as a method for rapid recovery of plasmid and chromosomal DNA from the cyanobacteria Nostoc PCC 7121, Synechococcus PCC 7002, and Anabaena PCC 7120. Pulses of 18 kV/cm and higher applied to concentrated Nostoc cells carrying a shuttle plasmid (pRL25) resulted in copio...

journal_title：FEMS microbiology letters

authors： Moser D,Zarka D,Hedman C,Kallas T

更新日期：1995-05-15 00:00:00

abstract：:A solvent-tolerant, slightly thermophilic bacterium was isolated at 45 degrees C in the presence of toluene vapor provided as the sole carbon source. Strain T27 was identified as Deinococcus geothermalis T27. It could tolerate high concentrations of solvent provided as a nonaqueous layer (5% and 20%, v/v) to a cell su...

journal_title：FEMS microbiology letters

authors： Kongpol A,Kato J,Vangnai AS

更新日期：2008-09-01 00:00:00

abstract：:The influence of nutritional and physical stress on sporulation, conidial germination and vegetative biomass of Ophiocordyceps sinensis, one of the most important medicinal fungi in China and now globally, was evaluated using a two-stage culture method. All the treatments, except nutrient deprivation, enhanced conidia...

journal_title：FEMS microbiology letters

authors： Ren SY,Yao YJ

更新日期：2013-09-01 00:00:00

abstract：:We constructed mutant genes of Caldococcus noboribetus isocitrate dehydrogenase containing ancestral amino acid residues that were inferred using the maximal likelihood method and a composite phylogenetic tree of isocitrate dehydrogenase and 3-isopropylmalate dehydrogenase. The mutant genes were expressed in Escherich...

journal_title：FEMS microbiology letters

authors： Iwabata H,Watanabe K,Ohkuri T,Yokobori S,Yamagishi A

更新日期：2005-02-15 00:00:00

abstract：:Cronobacter sakazakii is associated with severe and often fatal cases of infant meningitis and necrotizing enterocolitis. The form of meningitis differs from that due to Neisseria meningitidis and Streptococcus spp., in that it is highly invasive and destructive towards human brain cells. However, there is relatively ...

journal_title：FEMS microbiology letters

authors： Alzahrani H,Winter J,Boocock D,De Girolamo L,Forsythe SJ

更新日期：2015-06-01 00:00:00

abstract：:Mini-Tn10luxABcam/Ptac-ATS was constructed in order to develop a luciferase-transducing bacteriophage for detecting Escherichia coli O157:H7. The transposon was designed to deliver a 3.6-kb insertion that confers n-decanal-dependent bioluminescence and resistance to chloramphenicol and was constructed using mini-Tn10c...

journal_title：FEMS microbiology letters

authors： Waddell TE,Poppe C

更新日期：2000-01-15 00:00:00

abstract：:A genomic bank was constructed in Escherichia coli HB101, consisting of DNA fragments from Bacteroides thetaiotaomicron strain 489 inserted within the vector pBR322. By screening on complex medium containing blue dextran, 10 stable dextranase-positive (Dex+) clones were isolated. Seven groups of Dex+ inserts were iden...

journal_title：FEMS microbiology letters

authors： Joncquiert JC,Béchet M,Tierny Y,Courtois J,Dubourguier HC,Guillaume JB

更新日期：1991-12-01 00:00:00

abstract：:Rhodopirellula baltica (strain SH 1T) is a free-living marine representative of the phylogenetically independent and environmentally relevant phylum Planctomycetes. Little is known about the regulatory strategies of free-living bacteria with large (7.15 Mb) genomes. Therefore, a consistent, quantitative and qualitativ...

journal_title：FEMS microbiology letters

authors： Lombardot T,Bauer M,Teeling H,Amann R,Glöckner FO

更新日期：2005-01-01 00:00:00

abstract：:Changes in composition of the principal low molecular mass thiols of Leishmania donovani were monitored during the transformation of promastigotes, first to stationary phase metacyclic forms and then to amastigotes. No consistent variation in the thiol composition of the parasite which could account for the known incr...

journal_title：FEMS microbiology letters

authors： Weldrick DP,Chodacka B,Vogt R,Steenkamp DJ

更新日期：1999-04-01 00:00:00

abstract：:PM3 is an Aeromonas-specific bacteriophage which was isolated and characterized on A. hydrophila strain TF7. Spontaneous mutants resistant to PM3 were non-motile having lost their characteristic monopolar flagellum. In addition, purified flagella inactivated PM3. PM3 is the first filamentous bacteriophage isolated on ...

journal_title：FEMS microbiology letters

authors： Merino S,Camprubi S,Tomás JM

更新日期：1990-06-01 00:00:00

abstract：:Molecular information suggests that there is a broad diversity of acetogens in the rumen, distinct from any currently isolated acetogens. We combined molecular analysis with enrichment culture techniques to investigate this diversity further. Methane-inhibited, hydrogenotrophic enrichment cultures produced acetate as ...

journal_title：FEMS microbiology letters

authors： Gagen EJ,Padmanabha J,Denman SE,McSweeney CS

更新日期：2015-07-01 00:00:00

abstract：:We present evidence that glycine betaine (betaine) which was synthesized from choline was excreted and reaccumulated in osmoregulating cells of Escherichia coli. Choline which was accumulated in bet mutants defective in betaine synthesis was shown to be excreted in response to betaine uptake. Our data suggest that E. ...

journal_title：FEMS microbiology letters

authors： Lamark T,Styrvold OB,Strøm AR

更新日期：1992-09-15 00:00:00

abstract：:Previous studies had shown that Mycoplasma pulmonis contained a bovine serum albumin-dependent, membrane-associated hemolysin. Biochemical analyses were performed to further characterize this activity. The membrane-associated hemolytic activity could be activated by dithiothreitol and beta-mercaptoethanol, and inactiv...

journal_title：FEMS microbiology letters

authors： Jarvill-Taylor KJ,Minion FC

更新日期：1995-05-01 00:00:00

abstract：:Salmonella is a leading cause of waterborne diseases. Salmonella can survive for a long time in aquatic environments, and its persistence in the environment is of great concern to public health. Nonetheless, the presence and diversity of Salmonella in the aquatic environments in most areas remain relatively unknown. I...

journal_title：FEMS microbiology letters

authors： Huang KH,Hsu BM,Chou MY,Tsai HL,Kao PM,Wang HJ,Hsiao HY,Su MJ,Huang YL

更新日期：2014-03-01 00:00:00

abstract：:In order to find reasons for the absence of fire blight in most countries of the Southern hemisphere, bark samples from apple and pear trees in orchards of the Western Cape region in South Africa were extracted for bacteria which could be antagonistic to Erwinia amylovora. Screening was done in the late growth season ...

journal_title：FEMS microbiology letters

authors： Jock S,Völksch B,Mansvelt L,Geider K

更新日期：2002-06-04 00:00:00

abstract：:Pantoea ananatis accumulates gluconate during aerobic growth in the presence of glucose. Computer analysis of the P. ananatis SC17(0) sequenced genome revealed an ORF encoding a homologue (named gcd) of the mGDH (EC 1.1.99.17) apoenzyme from Escherichia coli and a putative pyrroloquinoline quinone (PQQ) biosynthetic o...

journal_title：FEMS microbiology letters

authors： Andreeva IG,Golubeva LI,Kuvaeva TM,Gak ER,Katashkina JI,Mashko SV

更新日期：2011-05-01 00:00:00

abstract：:A molecular cloning strategy has been designed to isolate the gene that encodes the small cytoplasmic RNA (scRNA) component of bacterial signal recognition particles. Using this strategy a putative Listeria monocytogenes scRNA lambda gt11 recombinant clone was isolated. A previously described complementation assay dev...

journal_title：FEMS microbiology letters

authors： Barry T,Kelly M,Glynn B,Peden J

更新日期：1999-04-01 00:00:00

abstract：:The lipid modification and processing of truncated mutants of the colicin A lysis protein were observed after overproduction by Escherichia coli bacteria, but at a rate far slower than that of the wild-type. The unmodified precursor form of the mutants was stable over hour(s). The truncated mutants provoked lethality,...

journal_title：FEMS microbiology letters

authors： Cavard D

更新日期：1994-04-01 00:00:00

abstract：:We report the enhanced bactericidal activity of ofloxacin in drug-containing Eudragit E100(®) dispersions (EuCl-OFX) against Pseudomonas aeruginosa and the effect of the cationic polymer on bacterial membrane. Organisms treated with EuCl-OFX showed changes in cell morphology, altered outer membrane (OM) and cytoplasm...

journal_title：FEMS microbiology letters

authors： Romero VL,Pons P,Bocco JL,Manzo RH,Alovero FL

更新日期：2012-09-01 00:00:00