The Salmonella typhimurium flgM gene, which encodes a negative regulator of flagella synthesis and is involved in virulence, is present and functional in other Salmonella species.

abstract：:In Bacillus subtilis, carbon catabolite control is mediated by the regulatory protein CcpA. In addition to loss of catabolite repression, ccpA mutants exhibit a severe growth defect. They are not able to grow with glucose and ammonium as single sources of carbon and nitrogen, respectively. Only ccpA mutant strains car...

journal_title：FEMS microbiology letters

authors： Ludwig H,Stülke J

更新日期：2001-09-11 00:00:00

abstract：:Insertion sequence IS100 was localized on a 9.5-kb plasmid of Yersinia pestis and was shown to be specific for Y. pestis and serotype I strains of Y. pseudotuberculosis. The nucleotide sequence of IS100 isolated from this plasmid was determined. The element, which was flanked by 5-bp direct repeats, contained 1953 bp ...

journal_title：FEMS microbiology letters

authors： Podladchikova ON,Dikhanov GG,Rakin AV,Heesemann J

更新日期：1994-09-01 00:00:00

abstract：:The Gram-negative anaerobe Dichelobacter nodosus is the causative agent of footrot in sheep. Different strains of D. nodosus cause disease of differing severities, ranging from benign to virulent. Virulent strains have greater twitching motility and secrete proteases that are more thermostable than those secreted by b...

journal_title：FEMS microbiology letters

authors： Palanisamy SK,Fletcher C,Tanjung L,Katz ME,Cheetham BF

更新日期：2010-01-01 00:00:00

abstract：:The enteric microogranisms Salmonella, Escherichia coli and Shigella flexneri prefer to grow in neutral pH environments. They nevertheless experience dramatic pH fluctuations in nature and during pathogenesis. In response to environmental encounters with acid, these organisms have evolved complex, inducible acid survi...

journal_title：FEMS microbiology letters

authors： Bearson S,Bearson B,Foster JW

更新日期：1997-02-15 00:00:00

abstract：:MHYT, a new conserved protein domain with a likely signaling function, is described. This domain consists of six transmembrane segments, three of which contain conserved methionine, histidine, and tyrosine residues that are projected to lie near the outer face of the cytoplasmic membrane. In Synechocystis sp. PCC6803,...

journal_title：FEMS microbiology letters

authors： Galperin MY,Gaidenko TA,Mulkidjanian AY,Nakano M,Price CW

更新日期：2001-11-27 00:00:00

abstract：:Proteus mirabilis strain MAG1, a clinical isolate that is resistant to broad-spectrum penicillins and co-amoxiclav, produces inhibitor-resistant TEM (IRT)-21, a novel mutant of TEM beta-lactamase. This enzyme has a pI of 5.2 and is derived from the bla(TEM-1a) gene ancestor. It contains two major amino acid substituti...

journal_title：FEMS microbiology letters

authors： Mammeri H,Gilly L,Laurans G,Vedel G,Eb F,Paul G

更新日期：2001-12-18 00:00:00

abstract：:High 1,3-beta-glucanase activity was detected during autolysis in a culture medium containing Penicillium oxalicum. It was due to the combined action of four enzymes. The purification process for the major enzyme produced a homogeneous band in the SDS polyacrylamide gel that corresponded to a molecular weight of 79,40...

journal_title：FEMS microbiology letters

authors： Copa-Patiño JL,Reyes F,Pérez-Leblic MI

更新日期：1989-12-01 00:00:00

abstract：:L-arginine has attracted a great deal of attention as an agent for refolding denatured proteins, and the mildness of its effects offer hope for a wide range of potential applications for this substance, including medicines with few side effects. We report that both L- and D-arginine inhibits Na+-driven flagellar motor...

journal_title：FEMS microbiology letters

authors： Atsumi T,Yoshimura F,Sugiyama S

更新日期：2006-03-01 00:00:00

abstract：:Salmonella enteritidis isolated from poultry infections generated a convoluted colonial morphology after 48 h growth on colonisation factor antigen (CFA) agar at 25 degrees C. A mutant S. enteritidis defective for the elaboration of the SEF17 fimbrial antigen, in which the agf gene cluster was inactivated by insertion...

journal_title：FEMS microbiology letters

authors： Allen-Vercoe E,Dibb-Fuller M,Thorns CJ,Woodward MJ

更新日期：1997-08-01 00:00:00

abstract：:Escherichia coli heat stable enterotoxin (STa) binds to isolated rat intestinal epithelial cells and triggers a cascade reaction including increase of intracellular calcium levels ([Ca(2+)](i)) and membrane bound protein kinase C (PKC) activity. In response to STa, the cytosolic PKC activity falls from 110 to 35 nmol ...

journal_title：FEMS microbiology letters

authors： Ganguly U,Chaudhury AG,Basu A,Sen PC

更新日期：2001-10-16 00:00:00

abstract：:The low heat resistance (D100 = 0.554 min, z = 13.4 degrees C) of dormant lysozyme-sensitized spores of Bacillus sphaericus 9602 was correlated with a low protoplast wet density (1.305 g/ml) equivalent to a high protoplast water content (61.0%, wet weight basis). These values for these unusual spores were consistent w...

journal_title：FEMS microbiology letters

authors： Beaman TC,Pankratz HS,Gerhardt P

更新日期：1989-03-01 00:00:00

abstract：:A Xoo recA insertion inactivation mutant was constructed. The mutant, lacking RecA, showed increased sensitivity towards mutagen killing. This phenotype could be complemented by a cloned, functional recA. Unlike other bacteria, both the recA mutant and the parental strain had similar level of resistance to H2O2 killin...

journal_title：FEMS microbiology letters

authors： Mongkolsuk S,Rabibhadana S,Sukchavalit R,Vaughn G

更新日期：1998-12-15 00:00:00

abstract：:The alternative sigma factor sigmaH has been shown to play an important role in stress response and morphological differentiation in Streptomyces coelicolor. Its gene, sigH, is located in an operon with the gene encoding proposed anti-sigma factor UshX, and one of the promoters directing expression of the operon is de...

journal_title：FEMS microbiology letters

authors： Sevcikova B,Kormanec J

更新日期：2002-04-09 00:00:00

abstract：:Acinetobacter sp. strain 20B was isolated based on the ability to utilize dimethyl sulfide as the sole sulfur source. Since strain 20B oxidized indole as well as dimethyl sulfide, indigo production by recombinant Escherichia coli clones carrying Acinetobacter DNA was used as a selection for cloning genes encoding dime...

journal_title：FEMS microbiology letters

authors： Horinouchi M,Kasuga K,Nojiri H,Yamane H,Omori T

更新日期：1997-10-01 00:00:00

abstract：:The ectomycorrhizal fungus Paxillus involutus efficiently took up exogenously supplied [14C]alanine and rapidly converted it to pyruvate, citrate, succinate, fumarate and to CO2, thus providing direct evidence for the utilisation of alanine as a respiratory substrate. [14C]alanine was further actively metabolised to g...

journal_title：FEMS microbiology letters

authors： Chalot M,Brun A,Finlay RD,Söderström B

更新日期：1994-08-01 00:00:00

abstract：:High resistance to class IIa bacteriocins in Listeria monocytogenes has been clearly linked to lack of expression of the mptACD operon, encoding the EIIt Man mannose PTS permease. Also, intermediate resistance has been associated with membrane phospholipid modifications in the spontaneous mutants L. monocytogenes B73-...

journal_title：FEMS microbiology letters

authors： Arous S,Dalet K,Héchard Y

更新日期：2004-09-01 00:00:00

abstract：:The diversity of a collection of 49 Lactococcus garvieae strains, including isolates of dairy, fish, meat, vegetable and cereal origin, was explored using a molecular polyphasic approach comprising PCR-ribotyping, REP and RAPD-PCR analyses and a multilocus restriction typing (MLRT) carried out on six partial genes (at...

journal_title：FEMS microbiology letters

authors： Ferrario C,Ricci G,Borgo F,Rollando A,Fortina MG

更新日期：2012-07-01 00:00:00

abstract：:Arbuscular mycorrhizal fungi (AMF) belong to phylum Glomeromycota, an early divergent fungal lineage forming symbiosis with plant roots. Many reports have documented that bacteria are intimately associated with AMF mycelia in the soil. However, the role of these bacteria remains unclear and their diversity within intr...

journal_title：FEMS microbiology letters

authors： Iffis B,St-Arnaud M,Hijri M

更新日期：2014-09-01 00:00:00

abstract：:Acinetobacter baumannii is an important nosocomial pathogen that displays high antibiotic resistance. It causes a variety of infections including pneumonias and sepsis which may result in disseminated intravascular coagulation. In this work, we identify and characterize a novel secreted, zinc-dependent, metallo-endope...

journal_title：FEMS microbiology letters

authors： Tilley D,Law R,Warren S,Samis JA,Kumar A

更新日期：2014-07-01 00:00:00

abstract：:Atypical enteropathogenic Escherichia coli (EPEC) comprise an important group of paediatric pathogens. Atypical EPEC have reservoirs in farm and domestic animals where they can be either commensal or pathogenic; serogroup O26 is dominant in humans and animals. Central to intestinal colonization by EPEC is the transloc...

journal_title：FEMS microbiology letters

authors： Ooka T,Vieira MA,Ogura Y,Beutin L,La Ragione R,van Diemen PM,Stevens MP,Aktan I,Cawthraw S,Best A,Hernandes RT,Krause G,Gomes TA,Hayashi T,Frankel G

更新日期：2007-06-01 00:00:00

abstract：:Synthesis of nitrate reductase in the unicellular cyanobacterium Synechococcus sp. strain PCC 7942 took place at a slow rate when the cells were incubated without a supply of inorganic carbon, but addition to these cells of CO(2)/bicarbonate or, in a Synechococcus strain transformed with a gene encoding a 2-oxoglutara...

journal_title：FEMS microbiology letters

authors： Vázquez-Bermúdez MF,Herrero A,Flores E

更新日期：2003-04-25 00:00:00

abstract：:The sepsis caused by Vibrio vulnificus is characterized by an average incubation period of 26 h and a high mortality rate exceeding 50%. The fast growth and dissemination of V. vulnificus in vivo lead to poor clinical outcomes in patients. Therefore, elucidation of the proliferation mechanisms of this organism in vivo...

journal_title：FEMS microbiology letters

authors： Kado T,Kashimoto T,Yamazaki K,Ueno S

更新日期：2017-01-01 00:00:00

abstract：:Haloarchaea thrive under saline and hypersaline conditions and often dominate microbial communities in saltmarshes, salted lakes/soils and some oceanic areas. Some of the predominant species show denitrifying capabilities, although it remains unclear whether they are complete or partial denitrifiers. As complete denit...

journal_title：FEMS microbiology letters

authors： Torregrosa-Crespo J,Bergaust L,Pire C,Martínez-Espinosa RM

更新日期：2018-02-01 00:00:00

abstract：:An autonomous impala transposon trapped in Fusarium oxysporum by insertion within the niaD gene encoding nitrate reductase was introduced in the genome of the fungus Penicillium griseoroseum, a producer of pectinase enzymes. Through a phenotypic assay, we demonstrate that this element is able to excise from the niaD g...

journal_title：FEMS microbiology letters

authors： de Queiroz MV,Daboussi MJ

更新日期：2003-01-28 00:00:00

abstract：:The 2.5-kb erythromycin resistance (EmR) plasmid pPV142 of Staphylococcus simulans 13044 was isolated and characterized. Sequence analysis identified ORF1 and ORF2 encoding a 158-residue replication protein (Rep142) and a 244-residue erythromycin resistance protein (Erm, rRNA adenine N-6-methyltransferase), respective...

journal_title：FEMS microbiology letters

authors： Somkuti GA,Solaiman DK,Steinberg DH

更新日期：1998-08-15 00:00:00

abstract：:A cloning cassette, carrying a modified amino-glycoside resistance gene (neo) from transposon Tn5 was constructed. Three restriction sites internal to the neo gene were eliminated by in vitro mutagenesis, allowing their use in designing new cloning vectors. The original, suboptimal transcription promoter was replaced ...

journal_title：FEMS microbiology letters

authors： Denis F,Brzezinski R

更新日期：1991-07-01 00:00:00

abstract：:Saccharomyces cerevisiae strains tolerant to osmotic stress are important for ethanol production during very high gravity (VHG) fermentation. We aimed to identify novel genes that confer enhanced tolerance to osmotic stress in S. cerevisiae. Two strains tolerant to up to 30% (w/v) glucose were isolated by screening a ...

journal_title：FEMS microbiology letters

authors： Kim B,Kim HS

更新日期：2018-07-01 00:00:00

abstract：:Plasmodium falciparum sirtuin, PfSir2, contains histone deacetylase (HDAC) activity that may be central to the regulation of virulence gene expression in the parasites. Although a few reports have been published recently regarding in vitro and in vivo function of PfSir2, expression of the endogenous protein (c. 30 kDa...

journal_title：FEMS microbiology letters

authors： Prusty D,Mehra P,Srivastava S,Shivange AV,Gupta A,Roy N,Dhar SK

更新日期：2008-05-01 00:00:00

abstract：:A total of 401 enterohemorrhagic Escherichia coli (EHEC) O157:H7 isolates from two experimentally infected calves were analyzed using molecular biological methods. Genetic differences detected by pulsed-field gel electrophoresis were observed between the inoculated and recovered strains as early as 1 day post inoculat...

journal_title：FEMS microbiology letters

authors： Akiba M,Sameshima T,Nakazawa M

更新日期：2000-03-01 00:00:00

abstract：:A number of hybrids obtained by fusion of protoplasts of complementary auxotrophic strains of Candida albicans were analysed for growth rates, cell volume, DNA content, stability and adherence to human buccal epithelial cells. SDS-PAGE analysis of the cell wall proteins indicated that the hybrid cell walls contained m...

journal_title：FEMS microbiology letters

authors： Law C,Kavanagh K,Whittaker P

更新日期：1994-01-01 00:00:00