Genetic variability among archival cultures of Salmonella typhimurium.

Abstract:

:The existence in our laboratory of over 10000 Salmonella typhimurium LT2 cultures sealed in agar stab vials for 33-46 years offers an opportunity for evolutionary and mutational studies. In each of 77 vials examined, 10(3)-10(5) colony forming units per vial were recovered (less than 0.01% of the original population) even after decades of undisturbed storage. Considerable genetic variability was observed in these populations. Three genetic variables, chromosome fragment size as determined by pulsed-field gel electrophoresis, extensive mutational reversions from nutritional auxotrophy to prototrophy, and differences in protein content as assayed by sodium dodecyl sulfate polyacrylamide gel electrophoresis, were measured.

journal_name

FEMS Microbiol Lett

authors

Edwards K,Linetsky I,Hueser C,Eisenstark A

doi

10.1111/j.1574-6968.2001.tb10677.x

keywords:

subject

Has Abstract

pub_date

2001-05-30 00:00:00

pages

215-9

issue

2

eissn

0378-1097

issn

1574-6968

pii

S0378109701001859

journal_volume

199

pub_type

杂志文章
  • Serine racemase homologue of Saccharomyces cerevisiae has L-threo-3-hydroxyaspartate dehydratase activity.

    abstract::The NH(2)-terminal amino acid sequence of L-threo-3-hydroxyaspartate dehydratase from Pseudomonas sp. T62 showed significant similarity to that of the SRY1 gene product of Saccharomyces cerevisiae (serine racemase in yeast). SRY1 was cloned and expressed in Escherichia coli, and the gene product was purified and parti...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/S0378-1097(03)00484-1

    authors: Wada M,Nakamori S,Takagi H

    更新日期:2003-08-29 00:00:00

  • Comparison of transcription of multiple genes at three developmental stages of the plant pathogen Sclerotinia sclerotiorum.

    abstract::The ascomycete Sclerotinia sclerotiorum is a plant pathogen with a very broad host range. In order to identify and characterize genes involved in S. sclerotiorum infection of Brassica napus (canola), expressed sequence tags (ESTs) were examined from libraries prepared from three tissues: complex appressorium (infectio...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2006.00212.x

    authors: Sexton AC,Cozijnsen AJ,Keniry A,Jewell E,Love CG,Batley J,Edwards D,Howlett BJ

    更新日期:2006-05-01 00:00:00

  • Correlation between the effects of fosfomycin and chloramphenicol on Escherichia coli.

    abstract::It was speculated that the increase of the UDP-GlcNAc pool observed with chloramphenicol can modulate the residual PEP:UDP-GlcNAc-enolpyruvate activity of fosfomycin-treated cells. This provided an explanation on how chloramphenicol can insure the formation of enough UDP-MurNAc-pentapeptide to sustain peptidoglycan sy...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/0378-1097(90)90270-z

    authors: Mengin-Lecreulx D,van Heijenoort J

    更新日期:1990-01-01 00:00:00

  • Streptococcus uberis acquires plasmin activity following growth in the presence of bovine plasminogen through the action of its specific plasminogen activator.

    abstract::Three (0140J, C197C and EF20) out of four strains of Streptococcus uberis exhibited high levels of bound plasmin activity following growth in the presence of bovine plasminogen. The remaining strain (C197) bound considerably less plasmin following growth in the same medium. In contrast to the others, this strain was u...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.1997.tb12633.x

    authors: Leigh JA,Lincoln RA

    更新日期:1997-09-01 00:00:00

  • Rapid identification of the species of the Bacteroides fragilis group by multiplex PCR assays using group- and species-specific primers.

    abstract::We report a rapid and reliable two-step multiplex polymerase chain reaction (PCR) assay to identify the 10 Bacteroides fragilis group species - Bacteroides caccae, B. distasonis, B. eggerthii, B. fragilis, B. merdae, B. ovatus, B. stercoris, B. thetaiotaomicron, B. uniformis and B. vulgatus. These 10 species were firs...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/S0378-1097(03)00296-9

    authors: Liu C,Song Y,McTeague M,Vu AW,Wexler H,Finegold SM

    更新日期:2003-05-16 00:00:00

  • Phylogenetic affinity of a Giardia lamblia cysteine desulfurase conforms to canonical pattern of mitochondrial ancestry.

    abstract::Among a few potential archezoan groups, only the Metamonada (diplomonads, retortamonads, and oxymonads) still retain the status of amitochondriate protists that diverged before the acquisition or retention of mitochondria. Indeed, finding that diplomonad genomes harbor a gene encoding a mitochondrial type chaperonin 6...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/S0378-1097(03)00598-6

    authors: Emelyanov VV

    更新日期:2003-09-26 00:00:00

  • Acanthamoeba sp. promotes the survival and growth of Acinetobacter baumanii.

    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

    authors: Cateau E,Verdon J,Fernandez B,Hechard Y,Rodier MH

    更新日期:2011-06-01 00:00:00

  • Rapid distinction between Leptospira interrogans and Leptospira biflexa by PCR amplification of 23S ribosomal DNA.

    abstract::Bacterial specific primers were used to amplify 23S rRNA genes from a representative strain from each of the 23 serogroups of the pathogenic Leptospira interrogans and 8 strains from 6 serogroups of the non-pathogenic Leptospira biflexa. Only regions of extreme variability, which had been identified on the basis of ho...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.1997.tb10343.x

    authors: Woo TH,Smythe LD,Symonds ML,Norris MA,Dohnt MF,Patel BK

    更新日期:1997-05-01 00:00:00

  • Evaluation of molecular techniques for the genetic characterization of Saccharomyces cerevisiae strains.

    abstract::The applicability of different PCR-based techniques, random amplified polymorphic DNA, cleaved amplified polymorphic sequence and SSRs (simple sequence repeats) to genetically identify, typify and discriminate among Saccharomyces cerevisiae strains, was investigated. The analysis and comparison of the genetic profiles...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2001.tb10975.x

    authors: Pérez MA,Gallego FJ,Hidalgo P

    更新日期:2001-12-18 00:00:00

  • Studies of the subtilin leader peptide as a translocation signal in Escherichia coli K12.

    abstract::Subtilin is an antimicrobial peptide of the lantibiotic family that is produced by Gram-positive Bacillus subtilis, and its biosynthesis involves expression of presubtilin which consists of a leader segment and a mature segment. The leader segment is unlike a typical sec-type general secretion signal, and its ability ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.1999.tb13640.x

    authors: Paul LK,Izaguirre G,Hansen JN

    更新日期:1999-07-01 00:00:00

  • Differences in biochemical properties of the Plasmodial falcipain-2 and berghepain-2 orthologues: implications for in vivo screens of inhibitors.

    abstract::Falcipain-2A, the cysteine protease of Plasmodium falciparum has been proposed as a good drug target. This study evaluated the suitability of Plasmodium berghei as the animal model and reports the first functional expression and characterization of the falcipain-2A orthologue, berghepain-2. Comparative studies reveale...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/j.femsle.2005.06.024

    authors: Chan C,Goh LL,Sim TS

    更新日期:2005-08-15 00:00:00

  • Optimization of therapy against Pseudomonas aeruginosa with ceftazidime and meropenem using chemostats as model for infections.

    abstract::Pseudomonas aeruginosa is an opportunistic pathogen that can cause life-threatening infections in patients admitted to intensive care units. Resistance rapidly develops against two drugs of choice: ceftazidime and meropenem. Several therapeutic protocols were compared for reduction in viable cells and limiting develop...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1093/femsle/fnx142

    authors: Feng Y,Bakker RT,van Hest RM,Hodiamont CJ,Brul S,Schultsz C,Ter Kuile BH

    更新日期:2017-08-01 00:00:00

  • Transposon mutations in the flagella biosynthetic pathway of the solvent-tolerant Pseudomonas putida S12 result in a decreased expression of solvent efflux genes.

    abstract::Fourteen solvent-sensitive transposon mutants were generated from the solvent-tolerant Pseudomonas putida strain S12 by applying the TnMod-KmO mutagenesis system. These mutants were unable to grow in the presence of octanol and toluene. By cloning the region flanking the transposon insertion point a partial sequence o...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2001.tb10628.x

    authors: Kieboom J,Bruinenberg R,Keizer-Gunnink I,de Bont JA

    更新日期:2001-05-01 00:00:00

  • Ceramide glycosylation and fatty acid hydroxylation influence serological reactivity in Trypanosoma cruzi glycosphingolipids.

    abstract::Ceramide mono (CMH) or dihexoside (CDH) fractions from Trypanosoma cruzi (Dm28c clone) were identified as glucosyl and lactosylceramides containing non-hydroxylated fatty acids. The di-glycosylated form was much more efficiently recognized by sera from T. cruzi-immunized rabbits, indicating that glycosylation influenc...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/j.femsle.2005.01.024

    authors: Villas-Boas MH,Wait R,Silva RB,Rodrigues ML,Barreto-Bergter E

    更新日期:2005-03-01 00:00:00

  • Identification of Mga1, a G-protein alpha-subunit gene involved in regulating citrinin and pigment production in Monascus ruber M7.

    abstract::The filamentous fungi Monascus spp., which have been used in traditional fermented food in Asia for centuries, are well-known producers of a group of bioactive metabolites that are widely used as food additives and nutraceutical supplements worldwide. However, its potential to produce the mycotoxin citrinin poses a th...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2010.01992.x

    authors: Li L,Shao Y,Li Q,Yang S,Chen F

    更新日期:2010-07-01 00:00:00

  • Clonal relations of atypical enteropathogenic Escherichia coli O157:H16 strains isolated from various sources from several countries.

    abstract::Atypical enteropathogenic Escherichia coli (aEPEC) is comprised of a large heterogeneous group of strains and serotypes that carry the intimin gene (eae) but no other EPEC virulence factors. In a previous study, we examined a few aEPEC strains of O157:H16 serotype from the U.S. and France and found these to be nearly ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/1574-6968.12017

    authors: Feng PC,Keys C,Lacher DW,Beutin L,Bentancor A,Heuvelink A,Afset JE,Rumi V,Monday S

    更新日期:2012-12-01 00:00:00

  • Biochemical and molecular characterization of a lipase produced by Rhizopus oryzae.

    abstract::A novel strain of Rhizopus oryzae WPG secretes a noninduced lipase (ROLw) in the culture medium; purified ROLw is a protein of 29 kDa, the 45 N-terminal amino acid residues were sequenced, this sequence is very homologous to Rhizopus delemar lipase (RDL), Rhizopus niveus lipase (RNL) and R. oryzae lipase (ROL29) seque...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2006.00323.x

    authors: Salah RB,Mosbah H,Fendri A,Gargouri A,Gargouri Y,Mejdoub H

    更新日期:2006-07-01 00:00:00

  • Aerotactic responses in bacteria to photoreleased oxygen.

    abstract::Bacterial aerotaxis is a rapid response towards or away from oxygen. Here we report on the use of computer-assisted motion analysis coupled to flash photolysis of caged oxygen to quantify aerotactic responses in bacteria. The caged compound (mu-peroxo)(mu-hydroxo)bis[bis(bipyridyl) cobalt(III)] perchlorate liberates m...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2002.tb11481.x

    authors: Yu HS,Saw JH,Hou S,Larsen RW,Watts KJ,Johnson MS,Zimmer MA,Ordal GW,Taylor BL,Alam M

    更新日期:2002-12-17 00:00:00

  • Carbon supply and 2-oxoglutarate effects on expression of nitrate reductase and nitrogen-regulated genes in Synechococcus sp. strain PCC 7942.

    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

    pub_type: 杂志文章

    doi:10.1016/S0378-1097(03)00208-8

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

    更新日期:2003-04-25 00:00:00

  • Diverse pathogenicity of Burkholderia cepacia complex strains in the Caenorhabditis elegans host model.

    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

    pub_type: 杂志文章

    doi:10.1016/j.femsle.2005.06.050

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

    更新日期:2005-09-01 00:00:00

  • Listeria monocytogenes infection of Caco-2 human epithelial cells induces activation of transcription factor NF-kappa B/Rel-like DNA binding activities.

    abstract::The effect of Listeria monocytogenes infection on the cellular level of transcription factor NF-kappa B in the human epithelia-like cell line Caco-2 was investigated. Infection with L. monocytogenes or treatment with lipoteichoic acid induced the formation of three NF-kappa B-like DNA-protein complexes C1, C2, and C3,...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.1999.tb13766.x

    authors: Hauf N,Goebel W,Fiedler F,Kuhn M

    更新日期:1999-09-01 00:00:00

  • Characterization of a novel vip3-type gene from Bacillus thuringiensis and evidence of its presence on a large plasmid.

    abstract::A novel vip3-type gene named vip3LB has been isolated from Bacillus thuringiensis strain BUPM95. The corresponding secreted vegetative insecticidal protein was active against the lepidopteran insect Ephestia kuehniella. The vip3LB gene was shown, for the first time, to be carried by the large plasmid containing the cr...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/j.femsle.2005.02.007

    authors: Mesrati LA,Tounsi S,Jaoua S

    更新日期:2005-03-15 00:00:00

  • Microaerophilic, Fe(II)-dependent growth and Fe(II) oxidation by a Dechlorospirillum species.

    abstract::A species of Dechlorospirillum was isolated from an Fe(II)-oxidizing, opposing-gradient-culture enrichment using an inoculum from a circumneutral, freshwater creek that showed copious amounts of Fe(III) (hydr)oxide precipitation. In gradient cultures amended with a redox indicator to visualize the depth of oxygen pene...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2011.02265.x

    authors: Picardal FW,Zaybak Z,Chakraborty A,Schieber J,Szewzyk U

    更新日期:2011-06-01 00:00:00

  • Identification of a secreted superoxide dismutase in Mycobacterium avium ssp. paratuberculosis.

    abstract::Mycobacterium avium ssp. paratuberculosis (M. paratuberculosis), the causative agent of Johne's disease, is an important animal pathogen that has also been implicated in human disease. The major proteins expressed by M. paratuberculosis were analyzed by two-dimensional gel electrophoresis, and a superoxide dismutase (...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2001.tb10809.x

    authors: Liu X,Feng Z,Harris NB,Cirillo JD,Bercovier H,Barletta RG

    更新日期:2001-08-21 00:00:00

  • Role of 1-hydroxybenzotriazole in oxidation by laccase from Trametes versicolor. Kinetic analysis of the laccase-1-hydroxybenzotriazole couple.

    abstract::In the current studies, we used Lineweaver-Burke analysis to examine the role of 1-hydroxybenzotriazole (HBT) in the oxidation of various compounds by laccase from Trametes versicolor. At low concentrations, HBT was a competitive inhibitor of the oxidation, but at high concentrations, it was a noncompetitive inhibitor...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2006.00474.x

    authors: Hirai H,Shibata H,Kawai S,Nishida T

    更新日期:2006-12-01 00:00:00

  • Five putative nucleoside triphosphate diphosphohydrolase genes are expressed in Trichomonas vaginalis.

    abstract::Trichomonas vaginalis is a protozoan that parasitizes the human urogenital tract causing trichomoniasis, the most common non-viral sexually transmitted disease. The parasite has unique genomic characteristics such as a large genome size and expanded gene families. Ectonucleoside triphosphate diphosphohydrolase (E-NTPD...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1093/femsle/fnv221

    authors: Frasson AP,Dos Santos O,Meirelles LC,Macedo AJ,Tasca T

    更新日期:2016-01-01 00:00:00

  • Identification by Tn10 transposon mutagenesis of host factors involved in the biosynthesis of K99 fimbriae of Escherichia coli: effect of LPS core mutations.

    abstract::Tn10 transposon mutagenesis of Escherichia coli producing K99 fimbriae was carried out to identify host factors involved in regulation of biosynthesis of fimbriae. Two chromosomal mutants were obtained that showed a strongly reduced cell surface expression of K99 fimbriae upon colony blotting and ELISA. Analysis by in...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/0378-1097(94)90295-x

    authors: Pilipcinec E,Huisman TT,Willemsen PT,Appelmelk BJ,de Graaf FK,Oudega B

    更新日期:1994-10-15 00:00:00

  • Phylogenetic position of the menaquinone-containing acidophilic chemo-organotroph Acidobacterium capsulatum.

    abstract::The phylogenetic position of an acidophilic chemo-organotrophic menaquinone-containing bacterium, Acidobacterium capsulatum, was studied on the basis of 16S rRNA gene sequence information. A. capsulatum showed the highest level of sequence similarity to Heliobacterium chlorum, a member of the Gram-positive group, yet ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.1995.tb07816.x

    authors: Hiraishi A,Kishimoto N,Kosako Y,Wakao N,Tano T

    更新日期:1995-10-01 00:00:00

  • Novel plasmids in clinical strains of Streptococcus pneumoniae.

    abstract::Small plasmids were found in two clinical isolates of Streptococcus pneumoniae from Spain (strains 671 and 678) and in one strain (SpR) isolated in Germany. All three strains contained one plasmid (2.75 to 3.1 kb) which is related to the only previously described pneumococcal plasmid, pDP1. Strains 678 and SpR carried...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/0378-1097(91)90019-7

    authors: Sibold C,Markiewicz Z,Latorre C,Hakenbeck R

    更新日期:1991-01-01 00:00:00

  • Occurrence of aminoglycoside-modifying enzymes among isolates of Escherichia coli exhibiting high levels of aminoglycoside resistance isolated from Korean cattle farms.

    abstract::This study investigated 247 Escherichia coli isolates collected from four cattle farms to characterize aminoglycoside-modifying enzyme (AME) genes, their plasmid replicons and transferability. Out of 247 isolates a high number of isolates (total 202; 81.78%) were found to be resistant to various antibiotics by disc di...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1093/femsle/fnx129

    authors: Belaynehe KM,Shin SW,Hong-Tae P,Yoo HS

    更新日期:2017-08-01 00:00:00