Pyrimidine scavenging by Mycobacterium leprae.

abstract：:Monocytes and macrophages are an important host defense in humans infected with Salmonella enterica serovar Typhi. Bacterial ability to survive in these cells is therefore a crucial virulence characteristic of this pathogen. In this study, we demonstrate that growth of a Salmonella enterica serovar Typhi enterochelin ...

journal_title：FEMS microbiology letters

authors： Gorbacheva VY,Faundez G,Godfrey HP,Cabello FC

更新日期：2001-03-01 00:00:00

abstract：:Picrophilus torridus has been shown to degrade glucose via a nonphosphorylative Entner-Doudoroff (ED) pathway. Here we report the characterization of a key enzyme of this pathway, glycerate kinase (2-phosphoglycerate forming). The enzyme was purified 5,100-fold to homogeneity. The 95 kDa homodimeric protein catalyzed ...

journal_title：FEMS microbiology letters

authors： Reher M,Bott M,Schönheit P

更新日期：2006-06-01 00:00:00

abstract：:We have investigated the iron-dependent regulation of the psbA gene, encoding the enzyme L-ornithine N(5)-oxygenase in the rhizobacterium Pseudomonas B10. We have cloned and characterized a Pseudomonas B10 gene, designated psbS, required for psbA expression. PsbS is endowed with structural and functional features of e...

journal_title：FEMS microbiology letters

authors： Leoni L,Ambrosi C,Petrucca A,Visca P

更新日期：2002-03-05 00:00:00

abstract：:Ammonia-induced injury was investigated in pure cultures of Escherichia coli and Enterobacter aerogenes, and in natural coliform populations obtained from the oligotrophic Luxapallila and the eutrophic Sunflower Rivers in northern Mississippi. Pure cultures were affected by ammonia exposure as indicated by changes in ...

journal_title：FEMS microbiology letters

authors： Naundorf G,Aumen NG

更新日期：1989-11-01 00:00:00

abstract：:The gacA gene of the biocontrol strain Pseudomonas fluorescens CHA0 codes for a response regulator which, together with the sensor kinase GacS (=LemA), is required for the production of exoenzymes and secondary metabolites involved in biocontrol, including hydrogen cyanide (HCN). A gacA multicopy suppressor was isolat...

journal_title：FEMS microbiology letters

authors： Blumer C,Haas D

更新日期：2000-06-01 00:00:00

abstract：:Gene disruption experiments play an important role in the functional characterization of genes in mycobacteria and rely mostly on the use of one or two antibiotic resistance markers. We have developed a system for mycobacteria which features both the advantages of the use of antibiotic resistance markers for gene disr...

journal_title：FEMS microbiology letters

authors： Malaga W,Perez E,Guilhot C

更新日期：2003-02-28 00:00:00

abstract：:Proteins which are secreted or associated with the cell envelope of Mycobacterium tuberculosis may contain protective T-cell epitopes. Prior to this study, a recombinant clone bank of enzymatically active M. tuberculosis-alkaline phosphatase fusions, were screened for immunogenicity in a murine T-cell model. Five of t...

journal_title：FEMS microbiology letters

authors： Moran AJ,Doran JL,Wu J,Treit JD,Ekpo P,Kerr VJ,Roberts AD,Orme IM,Galant S,Ress SR,Nano FE

更新日期：1999-08-01 00:00:00

abstract：:Food-borne diseases are a threat to human health and can cause severe economic losses. Nowadays, in a growing and increasingly interconnected world, food-borne diseases need to be dealt with in a global manner. In order to tackle this issue, it is essential to consider all possible entry routes of human pathogens into...

journal_title：FEMS microbiology letters

authors： Schierstaedt J,Grosch R,Schikora A

更新日期：2019-12-01 00:00:00

abstract：:Desulfovibrio fructosovorans possesses two periplasmic hydrogenases (a nickel-iron and an iron hydrogenase) and a cytoplasmic NADP-dependent hydrogenase. The hydAB genes encoding the periplasmic iron hydrogenase were replaced, in the wild-type strain as well as in single mutants depleted of one of the other two hydrog...

journal_title：FEMS microbiology letters

authors： Casalot L,Valette O,De Luca G,Dermoun Z,Rousset M,de Philip P

更新日期：2002-08-27 00:00:00

abstract：:An 18-kDa protein that occurs in Vibrio cholerae has been described as an in vivo and low-iron regulated outer membrane antigen. Monoclonal antibodies which recognized this antigen were protective as passive vaccines in the infant rabbit model of cholera disease. In this study, those monoclonal antibodies were used in...

journal_title：FEMS microbiology letters

authors： Sciortino CV Jr

更新日期：1993-07-15 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

authors： Eckart RA,Brantl S,Licht A

更新日期：2009-10-01 00:00:00

abstract：:To investigate the generality of efficient double-strand break repair and damage-induced mutagenesis in hyperthermophilic archaea, we systematically measured the effects of five DNA-damaging agents on Sulfolobus acidocaldarius and compared the results to those obtained for Escherichia coli under corresponding conditio...

journal_title：FEMS microbiology letters

authors： Reilly MS,Grogan DW

更新日期：2002-02-19 00:00:00

abstract：:Group B streptococci (GBS) represent a very important group of human pathogens. So far little is known about the mechanisms by which these bacteria can cause disease and the bacterial factors involved. One putative virulence factor is the beta antigen of the C protein complex (Bac), which can bind to the Fc region of ...

journal_title：FEMS microbiology letters

authors： Kreikemeyer B,Jerlström PG

更新日期：1999-11-15 00:00:00

abstract：:Haemophilus parasuis, the etiological agent of Glässer's disease in pigs, possesses iron acquisition pathways mediated by a surface receptor that specifically bind porcine transferrin. This receptor is composed of transferrin-binding protein A (TbpA) and TbpB. As it has been reported for other gram-negative organisms,...

journal_title：FEMS microbiology letters

authors： Martínez S,Frandoloso R,Rodríguez-Ferri EF,González-Zorn B,Gutiérrez-Martín CB

更新日期：2010-06-01 00:00:00

abstract：:The majority of microorganisms in natural environments are difficult to cultivate, but their genes can be studied via metagenome libraries. To enhance the chances that these genes become expressed we here report the construction of a broad-host-range plasmid vector (pRS44) for fosmid and bacterial artificial chromosom...

journal_title：FEMS microbiology letters

authors： Aakvik T,Degnes KF,Dahlsrud R,Schmidt F,Dam R,Yu L,Völker U,Ellingsen TE,Valla S

更新日期：2009-06-01 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：:In this study, we were interested in the association of attenuated mutants of Salmonella enterica serovar Enteritidis with subpopulations of porcine white blood cells (WBC). The mutants included those with inactivated aroA, phoP, rfaL, rfaG, rfaC and fliC genes and a mutant with five major pathogenicity islands remove...

journal_title：FEMS microbiology letters

authors： Stepanova H,Volf J,Malcova M,Matiasovic J,Faldyna M,Rychlik I

更新日期：2011-08-01 00:00:00

abstract：:Magnetotactic bacteria (MTB) are a group of microorganisms that have the ability to synthesize intracellular magnetic crystals (magnetosomes). They prefer microaerobic or anaerobic aquatic sediments. Thus, there is growing interest in their ecological roles in various habitats. In this study we found co-occurrence of ...

journal_title：FEMS microbiology letters

authors： Pan H,Dong Y,Teng Z,Li J,Zhang W,Xiao T,Wu LF

更新日期：2019-11-01 00:00:00

abstract：:In order to clarify the enteropathogenicity of Plesiomonas shigelloides, we investigated a cytotoxin produced by the P-1 strain isolated from patients suffering from diarrhea. The cytotoxicity of the culture filtrate of the strain reached a maximum in culture at 37 degrees C after 12 h shaken in BHI medium. The cytoto...

journal_title：FEMS microbiology letters

authors： Okawa Y,Ohtomo Y,Tsugawa H,Matsuda Y,Kobayashi H,Tsukamoto T

更新日期：2004-10-01 00:00:00

abstract：:Endophytic fungi colonize plants without causing symptoms of disease and can enhance the resistance of their host to pathogens. We cultivated 53 fungal strains from wild lima bean (Phaseolus lunatus) and investigated their effects on pathogens using in vitro assays and experiments in planta. Most strains were annotate...

journal_title：FEMS microbiology letters

authors： Adame-Álvarez RM,Mendiola-Soto J,Heil M

更新日期：2014-06-01 00:00:00

abstract：:Vf33 is a filamentous bacteriophage isolated from Vibrio parahaemolyticus. We performed Southern blot hybridization analysis to examine the distribution of Vf33-related genetic elements in the pandemic strains (O3:K6 strains isolated between 1995 and 1997, O4:K68 and O1:K untypeable strains isolated between 1997 and 1...

journal_title：FEMS microbiology letters

authors： Chang B,Yoshida S,Miyamoto H,Ogawa M,Horikawa K,Ogata K,Nishibuchi M,Taniguchi H

更新日期：2000-11-15 00:00:00

abstract：:Twitching motility is a form of bacterial translocation over solid or semi-solid surfaces mediated by the extension, tethering, and subsequent retraction of type IV pili. These pili are also known to be involved in virulence, biofilm formation, formation of fruiting bodies, horizontal gene transfer, and protein secret...

journal_title：FEMS microbiology letters

authors： Coil DA,Anné J

更新日期：2009-04-01 00:00:00

abstract：:In the present study, the homology relationships among fragments amplified by ERIC (Enterobacterial Repetitive Intergenic Consensus) and REP (Repetitive Extragenic Palindromic) primers in Drechslera avenae and Stemphylium solani causing leaf blotch and black spot of oats and leaf blight of cotton, respectively, were i...

journal_title：FEMS microbiology letters

authors： Mehta A,Mehta YR,Rosato YB

更新日期：2002-05-21 00:00:00

abstract：:Poultry is one of the most consumed meats worldwide and there are many different types of poultry products available on the market for consumers. Many poultry producers provide a variety of labeled meats based on rearing system such as organic, free-range and antibiotic-free. However, these labels often can be mislead...

journal_title：FEMS microbiology letters

authors： Lee SI,Choi J,Daeschel DZ,Park SH

更新日期：2019-05-01 00:00:00

abstract：:This study reports the production of astaxanthin in the photosynthetic bacterium Rhodovulum sulfidophilum, which has adequate precursor pools and storage capabilities for heterologous carotenoid production. Chemical mutagenesis was carried out using ethylmethane sulfonate to produce mutants with a modified carotenoid ...

journal_title：FEMS microbiology letters

authors： Mukoyama D,Takeyama H,Kondo Y,Matsunaga T

更新日期：2006-12-01 00:00:00

abstract：:The shaA gene (sodium-hydrogen antiporter gene A, identical to mrpA) is largely responsible for Na+ extrusion in Bacillus subtilis. The disruption of shaA combined with a low concentration of NaCl completely abolishes sporulation but allows normal growth. To investigate the role of shaA and shaA-mediated sodium ion ho...

journal_title：FEMS microbiology letters

authors： Kosono S,Asai K,Sadaie Y,Kudo T

更新日期：2004-03-12 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：:We screened for a gene that inhibits streptomycin production in Streptomyces griseus when it is introduced on a high-copy-number plasmid pIJ702, and obtained a plasmid pKM545. The introduction of pKM545 abolished streptomycin production on all media tested including YMP-sugar and Nutrient broth. S1 protection analysis...

journal_title：FEMS microbiology letters

authors： Takano H,Toriumi N,Hirata M,Amano T,Ohya T,Shimada R,Kusada H,Amano S,Matsuda K,Beppu T,Ueda K

更新日期：2016-07-01 00:00:00

abstract：:The discovery of nitrite-dependent anaerobic methane oxidation (n-damo) mediated by 'Candidatus Methylomirabilis oxyfera' with nitrite and methane as substrates has connected biogeochemical carbon and nitrogen cycles in a new way. The paddy fields often carry substantial methane and nitrate, thus may be a favorable ha...

journal_title：FEMS microbiology letters

authors： Zhou L,Wang Y,Long XE,Guo J,Zhu G

更新日期：2014-11-01 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