Gram-positive cell wall structure of the A3 gamma type in heliobacteria.

abstract：:Prebiotics are non-digestible feed ingredients that are metabolized by specific members of intestinal microbiota and provide health benefits for the host. Fermentable oligosaccharides are best known prebiotics that have received increasing attention in poultry production. They act through diverse mechanisms, such as p...

journal_title：FEMS microbiology letters

authors： Pourabedin M,Zhao X

更新日期：2015-08-01 00:00:00

abstract：:The natural life cycle of Vibrio cholerae involves the transitioning of cells between different environmental surfaces such as the chitinous shell of Crustaceae and the epithelial layer of the human intestine. Previous studies using static biofilm systems showed a strict dependence of biofilm formation on the vps and ...

journal_title：FEMS microbiology letters

authors： Müller J,Miller MC,Nielsen AT,Schoolnik GK,Spormann AM

更新日期：2007-10-01 00:00:00

abstract：:A growing body of evidence implicates streptococcal and staphylococcal superantigens in the development of psoriasis, atopic dermatitis and Kawasaki syndrome. In each of these illnesses, an abnormal state of immunologic activity is observed. Superantigens, which have a unique ability to activate large numbers of lymph...

journal_title：FEMS microbiology letters

authors： Yarwood JM,Leung DY,Schlievert PM

更新日期：2000-11-01 00:00:00

abstract：:Nitrogenase is oxygen-labile. Cyanobacterial heterocysts can fix N(2) in an oxic milieu because their interior is micro-oxic, for which the glycolipid layer of the heterocyst envelope is required. ORF all5341 of the Anabaena sp. genome predicts a glycosyl transferase. An insertional mutant of all5341 synthesized only ...

journal_title：FEMS microbiology letters

authors： Awai K,Wolk CP

更新日期：2007-01-01 00:00:00

abstract：:Staphylococcus aureus is responsible for a broad variety of chronic infections. Most S. aureus clinical isolates show the capacity to adhere to abiotic surfaces and to develop biofilms. Because S. aureus growing in a biofilm is highly refractory to treatment, inhibition of biofilm formation represents a major therapeu...

journal_title：FEMS microbiology letters

authors： Stenz L,François P,Fischer A,Huyghe A,Tangomo M,Hernandez D,Cassat J,Linder P,Schrenzel J

更新日期：2008-10-01 00:00:00

abstract：:Site-directed mutagenesis of the lamB gene was used to introduce individual cysteine substitutions at 20 sites in two regions (surface loops L7 and L8) of LamB protein significant in antibody recognition. Characterisation of cysteine mutants involved immunoblotting with three surface-specific monoclonal antibodies (mA...

journal_title：FEMS microbiology letters

authors： Notley L,Hillier C,Ferenci T

更新日期：1994-07-15 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

authors： Cérantola S,Montrozier H

更新日期：2001-08-07 00:00:00

abstract：:Deferoxamine (DFO), an FDA-approved iron chelator used for treatment of iron poisoning, affects bacteria as iron availability is intimately connected with growth and several virulence determinants. However, little is known about the effect on oral pathogens. In this study, the effect of DFO on Porphyromonas gingivalis...

journal_title：FEMS microbiology letters

authors： Moon JH,Herr Y,Kim SW,Lee JY

更新日期：2011-10-01 00:00:00

abstract：:The sacB gene of Bacillus subtilis was successfully applied in various Arthrobacter, Brevibacterium, Corynebacterium and Rhodococcus strains for the isolation of transposable elements. Three different insertion sequence (IS) elements entrapped in sacB were isolated. The IS elements IS-Bl and IS-Cg isolated from Brevib...

journal_title：FEMS microbiology letters

authors： Jäger W,Schäfer A,Kalinowski J,Pühler A

更新日期：1995-02-01 00:00:00

abstract：:Chromohalobacter marismortui VH1 was screened for its ability to utilise organosulfonate compounds at a range of NaCl concentrations. Only aminomethane sulfonate, of seven sulfonates tested, was utilised. Length of lag phase during growth on aminomethane sulfonate, as either nitrogen and/or sulfur source, increased wi...

journal_title：FEMS microbiology letters

authors： Ternan NG,McMullan G

更新日期：2002-01-22 00:00:00

abstract：:The polymerase chain reaction was used to search for hepatitis B virus (HBV)-DNA sequences in the sera of HBsAg-negative Senegalese patients suffering from liver cirrhosis or liver cancer. Amplified HBV-DNA sequences were detected by hybridization with a digoxigenin-labelled HBV-DNA probe. HBV-DNA was detected in 17% ...

journal_title：FEMS microbiology letters

authors： Coursaget P,Le Cann P,Leboulleux D,Diop MT,Bao O,Coll AM

更新日期：1991-09-15 00:00:00

abstract：:Adenylate kinase isoenzymes localised in the mitochondria and in the cytosol have been detected in extracts of glucose-grown Aspergillus nidulans using specific staining after electrophoresis on cellulose acetate. The isoenzymes have similar Km values for AMP, ADP and MgATP2- but may differ in the mechanism used for i...

journal_title：FEMS microbiology letters

authors： Hoang VQ,Jaklitsch W,Scrutton MC

更新日期：1991-03-01 00:00:00

abstract：:There are arguments against the conclusion drawn by Haselwandter and Ebner that fungal spores have survived for some 5300 years on hay padding in the leather boots of a frozen body discovered in the Austrian Alps. According to cryobiological experience, long-term survival of fungal spores is very unlikely at temperatu...

journal_title：FEMS microbiology letters

authors： Gams W,Stalpers JA

更新日期：1994-07-01 00:00:00

abstract：:Brucella melitensis possesses an operon with two components: the response regulator OtpR and a putative cAMP-dependent protein kinase regulatory subunit encoded by the BMEI0067 gene. In the previous study, the function of OtpR has been studied, while little is known about the function of the BMEI0067 gene. Using a bio...

journal_title：FEMS microbiology letters

authors： Liu WJ,Dong H,Peng XW,Wu QM

更新日期：2014-07-01 00:00:00

abstract：:DNA microarray technology was used to survey changes in gene expression in Pseudomonas fluorescens after mitomycin C treatment. As expected, genes associated with the SOS response were upregulated, such as those encoding the recombination protein RecA, DNA repair protein RecN, excinuclease ABC subunit A UvrA, and the ...

journal_title：FEMS microbiology letters

authors： Jin H,Retallack DM,Stelman SJ,Hershberger CD,Ramseier T

更新日期：2007-04-01 00:00:00

abstract：:Streptomyces tendae Tü901 produces nikkomycins belonging to the nucleoside peptide antibiotics. Mutants defective in histidine catabolism were isolated and characterized with regard to their histidine ammonium-lyase activity and antibiotic synthesis. In the histidine ammonialyase-negative mutant hut-11 which was unimp...

journal_title：FEMS microbiology letters

authors： Roos U,Mattern S,Schrempf H,Bormann C

更新日期：1992-10-01 00:00:00

abstract：:Analysis of the Photorhabdus luminescens genome sequence revealed that the pts region is related to the tail synthesis gene core of the P2 phage. The pts locus encodes a DNA invertase homologue. PCR-RFLP analysis showed the two potential tail fiber regions of the pts locus present DNA inversions. Electron microscopy r...

journal_title：FEMS microbiology letters

authors： Gaudriault S,Thaler JO,Duchaud E,Kunst F,Boemare N,Givaudan A

更新日期：2004-04-15 00:00:00

abstract：:The signal peptidase (SPase) SipS of Bacillus subtilis is responsible for the processing of precursors of secreted proteins. It differs from the SPases of Gram-negative bacteria in structure and specificity. To assay the activity of SipS in vitro, two efficient transcription-translation systems for the synthesis of ra...

journal_title：FEMS microbiology letters

authors： Vehmaanperä J,Görner A,Venema G,Bron S,van Dijl JM

更新日期：1993-12-01 00:00:00

abstract：:Aspergillus parasiticus (255), a non-toxigenic isolate showed the presence of secondary metabolites-aflatoxins (B1, B2, G1, G2) when grown in yeast extract sucrose media but not in basal media, thus demonstrating its toxigenic potential. Native PAGE of the crude protein isolated at different growth periods of A. paras...

journal_title：FEMS microbiology letters

authors： Shashidhar J,Sashidhar RB,Deshpande V

更新日期：2005-10-01 00:00:00

abstract：:Peptidoglycan hydrolases are an effective new source of antimicrobials. A chimeric fusion protein of the Ply187 endopeptidase domain and LysK SH3b cell wall-binding domain is a potent agent against Staphylococcus aureus in four functional assays. ...

journal_title：FEMS microbiology letters

authors： Mao J,Schmelcher M,Harty WJ,Foster-Frey J,Donovan DM

更新日期：2013-05-01 00:00:00

abstract：:During bacterial infection, professional phagocytes are attracted to the site of infection, where they constitute a first line of host cell defense. Their function is to engulf and destroy the pathogens. Thus, bacteria must withstand the bactericidal activity of professional phagocytes, including macrophages to counte...

journal_title：FEMS microbiology letters

authors： Tran SL,Ramarao N

更新日期：2013-10-01 00:00:00

abstract：:Ninety-three Salmonella isolates recovered from commercial foods and exotic animals in Colombia were studied. The serotypes, resistance profiles and where applicable the quinolone resistance genes were determined. Salmonella Anatum (n=14), Uganda (19), Braenderup (10) and Newport (10) were the most prevalent serovars,...

journal_title：FEMS microbiology letters

authors： Karczmarczyk M,Martins M,McCusker M,Mattar S,Amaral L,Leonard N,Aarestrup FM,Fanning S

更新日期：2010-12-01 00:00:00

abstract：:Eight-day-old embryonated hen's eggs were used as a model to study Mycobacterium avium virulence. Strains isolated from human patients caused 20-90% mortality when eggs were infected by injection of bacterial suspensions into the amniotic sac. Virulence of examined strains subsequently decreased with passage through e...

journal_title：FEMS microbiology letters

authors： Long EG,Ewing EP Jr,Bartlett JH,Horsburgh CR Jr,Birkness KA,Yakrus MA,Newman GW,Quinn FD

更新日期：2000-09-15 00:00:00

abstract：:A Caulobacter crescentus rho::Tn5 mutant strain presenting a partially functional transcription termination factor Rho is highly sensitive to hydrogen peroxide in both exponential and stationary phases. The mutant was shown to be permanently under oxidative stress, based on fluorophore oxidation, and also to be sensit...

journal_title：FEMS microbiology letters

authors： Italiani VC,Braz VS,Xiao H,Steinman HM,Marques MV

更新日期：2010-02-01 00:00:00

abstract：:A cadmium-resistant strain of Saccharomyces cerevisiae produces a cadmium metallothionein encoded by the CUP1 gene as does a copper-resistant strain. The mechanism of expression of the gene is inducible by copper ions in the copper-resistant strain. However, assays of CUP1-specific mRNA revealed that the transcription...

journal_title：FEMS microbiology letters

authors： Tohoyama H,Inagawa A,Koike H,Inouhe M,Joho M,Murayama T

更新日期：1992-08-01 00:00:00

abstract：:The large intestine of dogs contains a complex microbial ecosystem with predominance of streptococci, bifidobacteria, lactobacilli, Bacteroides and Clostridium. Generally, this predominant microbiota in dogs is relatively stable in time but much less is known about its taxonomic composition. Moreover, almost no studie...

journal_title：FEMS microbiology letters

authors： Vanhoutte T,Huys G,De Brandt E,Fahey GC Jr,Swings J

更新日期：2005-08-01 00:00:00

abstract：:Massive Open Online Courses (MOOCs) dominated discussions of online learning and higher education in the news media and in universities between 2012 and 2015. However, fashions pass, needs change and technology evolves. This Commentary looks back, pauses on the present, and then looks forward. Whilst MOOCs are a signi...

journal_title：FEMS microbiology letters

authors： Daniel J

更新日期：2016-04-01 00:00:00

abstract：:Two bifunctional plasmid vectors pZG5 (7.45 kb) and pZG6 (6.95 kb), for gene transfer between Streptomyces spp. and Escherichia coli have been constructed by fusion of the multicopy broad-host-range Streptomyces plasmid pIJ350 with E. coli plasmids Bluescribe M13- (pZG5) or pUC18 (pZG6). Both plasmids possess several ...

journal_title：FEMS microbiology letters

authors： Durajlija S,Pigac J,Gamulin V

更新日期：1991-10-15 00:00:00

abstract：:Himalaya hosts a unique environment for microbial ecology. The present study aimed to explore the bioplastic producing bacterial communities along altitude gradient of Pangi-Chamba trans-Himalayan region. A total of 411 bacteria were isolated and 70 characterized at the molecular level for potential polyhydroxyalkanoa...

journal_title：FEMS microbiology letters

authors： Kumar V,Thakur V,Ambika,Kumar S,Singh D

更新日期：2018-07-01 00:00:00

abstract：:A fast screening method was developed to assess the pathogenicity of a diverse collection of environmental and clinical Burkholderia cepacia complex isolates in the nematode Caenorhabditis elegans. The method was validated by comparison with the standard slow-killing assay. We observed that the pathogenicity of B. cep...

journal_title：FEMS microbiology letters

authors： Cardona ST,Wopperer J,Eberl L,Valvano MA

更新日期：2005-09-01 00:00:00