The gene encoding the alternative thymidylate synthase ThyX is regulated by sigma factor SigB in Corynebacterium glutamicum ATCC 13032.

abstract：:The frequency of spontaneous as well as induced reversions of auxotrophic mutations in Escherichia coli AB1157 and its DeltadnaK and DeltadnaKdnaJ derivatives was estimated. The obtained results demonstrate that both mutants tested are characterized by elevated frequency of spontaneous reversions compared to their AB1...

journal_title：FEMS microbiology letters

authors： Grudniak AM,Kuć M,Wolska KI

更新日期：2005-01-15 00:00:00

abstract：:Streptococcus pneumoniae strain JNR.7/87 is a highly virulent, type 4 encapsulated Gram-positive bacterium whose transformability has not been tested previously, and whose genome is currently being sequenced. The strain was transformed at very low efficiency by addition of exogenous competence-stimulating peptide: How...

journal_title：FEMS microbiology letters

authors： Bricker AL,Camilli A

更新日期：1999-03-15 00:00:00

abstract：:micF RNA, whose sequence is highly complementary to a 5'-portion of ompF mRNA, has been implicated in the osmoregulation and thermoregulation of the ompF porin gene in Escherichia coli. To define and characterize cis-acting regulatory regions upstream of the micF promoter, a series of deletions of the micF promoter fu...

journal_title：FEMS microbiology letters

authors： Takayanagi K,Maeda S,Mizuno T

更新日期：1991-09-15 00:00:00

abstract：:Two variants have been isolated from the wild-type Azospirillum lipoferum strain 4B. The first variant, 4V(I), spontaneously emerged from the wild-type at frequencies in the order of 10(-4) to 10(-3) per cell generation. Compared to the wild-type, the 4V(I) variant gained (production of a carotenoid-like pigment, assi...

journal_title：FEMS microbiology letters

authors： Alexandre G,Bally R

更新日期：1999-05-15 00:00:00

abstract：:As shown by both bioassay and high-performance liquid chromatographic (HPLC) analysis, penicillin G production by Aspergillus nidulans is subject to regulation by the pH of the growth medium. Penicillin titres were highest at alkaline pH and in strains carrying mutations in the regulatory gene pacC which mimics the ef...

journal_title：FEMS microbiology letters

authors： Shah AJ,Tilburn J,Adlard MW,Arst HN Jr

更新日期：1991-01-15 00:00:00

abstract：:The biosynthesis of the alternative oxidase protein consisting of cyanide-insensitive and salicylhydroxamic acid-sensitive respiration in Aspergillus niger was investigated. Cyanide-insensitive respiration was enhanced by addition of antimycin A to the incubation mixture, but repressed by the addition of cycloheximide...

journal_title：FEMS microbiology letters

authors： Kirimura K,Matsui T,Sugano S,Usami S

更新日期：1996-08-01 00:00:00

abstract：:Francisella tularensis is a highly virulent bacterial species that causes various forms of tularemia in humans. The urgency in understanding the pathogenesis of these diseases has stimulated unprecedented interest in this bacterial species over the past few years. Recent findings underscore a number of important disti...

journal_title：FEMS microbiology letters

authors： Parmely MJ,Fischer JL,Pinson DM

更新日期：2009-11-01 00:00:00

abstract：:Penicillium expansum is the causal agent of blue mold rot, a postharvest decay of stored fruits. This fungus also produces the mycotoxins patulin and citrinin. Control of P. expansum still relies mainly on the use of fungicides such as thiabendazole. Since its introduction, resistant strains have been reported. The ai...

journal_title：FEMS microbiology letters

authors： Cabañas R,Castellá G,Abarca ML,Bragulat MR,Cabañes FJ

更新日期：2009-08-01 00:00:00

abstract：:A typing method for Clostridium difficile based on restriction fragment length polymorphisms (RFLP) is described. The technique utilizes commercially available Escherichia coli ribosomal ribonucleic acid (rRNA) as probe material. Probe labelling, hybridization and detection was performed using the Enhanced Chemilumine...

journal_title：FEMS microbiology letters

authors： Bowman RA,O'Neill GL,Riley TV

更新日期：1991-04-15 00:00:00

abstract：:Efficient type-III secretion depends on cytosolic molecular chaperones, which bind specifically to the translocators and effectors. In the past there has been a tendency to shoe-horn all type-III-secretion chaperones into a single structural and functional class. However, we have shown that the LcrH/SycD-like chaperon...

journal_title：FEMS microbiology letters

authors： Pallen MJ,Francis MS,Fütterer K

更新日期：2003-06-06 00:00:00

abstract：:Mycobacterium smegmatis was used to study the relationship between DNA repair processes involving RecA and nonhomologous end joining (NHEJ). The effect of gene deletions in recA and/or in two genes involved in NHEJ (ku and ligD) was tested on the ability of bacteria to join breaks in plasmids transformed into them and...

journal_title：FEMS microbiology letters

authors： Korycka-Machala M,Brzostek A,Rozalska S,Rumijowska-Galewicz A,Dziedzic R,Bowater R,Dziadek J

更新日期：2006-05-01 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：:Yeast Cia2p is a component of the cytosolic Fe/S protein assembly (CIA) machinery. Initial studies of the CIA machinery were performed in yeast, but the precise role of Cia2p in this eukaryote is still unknown. We report that CIA2 deficiency results in impaired oxidative stress response, as evidenced by increased sens...

journal_title：FEMS microbiology letters

authors： Zhao W,Zheng HZ,Niu YJ,Yuan Y,Fang BX,Liu YN,Cai LH,Zhou ZJ,Liu XG

更新日期：2015-03-01 00:00:00

abstract：:The need for improved rapid diagnostic tests for tuberculosis disease has prompted interest in the volatile organic compounds (VOCs) emitted by Mycobacterium tuberculosis complex bacteria. We have investigated VOCs emitted by Mycobacterium bovis BCG grown on Lowenstein-Jensen media using selected ion flow tube mass sp...

journal_title：FEMS microbiology letters

authors： McNerney R,Mallard K,Okolo PI,Turner C

更新日期：2012-03-01 00:00:00

abstract：:The argH gene encoding argininosuccinate lyase (ASL) of Methanococcus maripaludis was cloned on a 4.7-kb HindIII genomic fragment. The gene is preceded by a short open reading frame (ORF149), which encodes a polypeptide with an unknown function. The two genes are co-transcribed. The ASL of M. maripaludis shares a high...

journal_title：FEMS microbiology letters

authors： Cohen-Kupiec R,Kupiec M,Sandbeck K,Leigh JA

更新日期：1999-04-01 00:00:00

abstract：:Streptococcus intermedius is well known to produce severe infections in various areas of the body. In this study, we evaluated the ability of S. intermedius to utilise human transferrin as a source of iron and investigated the mechanism by which iron can be obtained from this plasma protein. Adding either ferrous sulf...

journal_title：FEMS microbiology letters

authors： Brochu V,Greinier D,Mayrand D

更新日期：1998-09-01 00:00:00

abstract：:We have determined the genetic basis of minocycline resistance in a strain of Streptococcus infantis isolated from a healthy human oral cavity. We demonstrate that tet(S), identical to tet(S) found on the enterococcal conjugative transposon Tn6000, is responsible for the observed resistance. The gene is located on a s...

journal_title：FEMS microbiology letters

authors： Ciric L,Brouwer MS,Mullany P,Roberts AP

更新日期：2014-04-01 00:00:00

abstract：:A succinate semialdehyde dehydrogenase gene (gabD) was identified to be disrupted in a transposon-induced mutant of Ralstonia eutropha exhibiting the phenotype 4-hydroxybutyric acid-leaky. The native gabD gene was cloned by colony hybridization using a homologous gabD-specific DNA probe. DNA sequencing revealed an 145...

journal_title：FEMS microbiology letters

authors： Lütke-Eversloh T,Steinbüchel A

更新日期：1999-12-01 00:00:00

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

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

更新日期：2011-06-01 00:00:00

abstract：:Four distinct bands of cysteine proteinase activity were detected when stationary-phase populations of Leishmania mexicana mexicana were subjected to gelatin-SDS-PAGE. The highest mobility band contained at least three isoforms separable by mono Q anion exchange chromatography. These high mobility activities were dist...

journal_title：FEMS microbiology letters

authors： Robertson CD,Coombs GH

更新日期：1992-07-01 00:00:00

abstract：:Microbial production of acetone and butanol was one of the first large-scale industrial fermentation processes of global importance. During the first part of the 20th century, it was indeed the second largest fermentation process, superseded in importance only by the ethanol fermentation. After a rapid decline after t...

journal_title：FEMS microbiology letters

authors： Sauer M

更新日期：2016-07-01 00:00:00

abstract：:The RcsCDB (Rcs) phosphorelay system regulates capsule synthesis, flagella production and other cellular activities in several enteric bacteria. This system consists of three proteins: the sensor RcsC, the cognate response regulator RcsB and the histidine-containing phosphotransfer protein RcsD (YojN), which is hypoth...

journal_title：FEMS microbiology letters

authors： Pescaretti Mde L,Morero R,Delgado MA

更新日期：2009-11-01 00:00:00

abstract：:A CO-reactive hemoprotein was purified from the mitochondrial membrane fraction of Tetrahymena pyriformis. It showed absorption peaks at 615 and 455 nm in the reduced form and an alpha peak at 565 nm in the pyridine ferrohemochrome spectrum. Although the spectral properties were apparently similar to those of 'cytochr...

journal_title：FEMS microbiology letters

authors： Inokuchi A,Fukumori Y

更新日期：1993-08-15 00:00:00

abstract：:Growth of strains of Salmonella enteritidis and Salmonella pullorum on Hektoen agar has been reported to influence the expression of long-chain lipopolysaccharide and motility respectively. In this study we used a panel of strains of S. enteritidis and S. pullorum to investigate these phenomena. Culture on Hektoen aga...

journal_title：FEMS microbiology letters

authors： Chart H,Rowe B

更新日期：1998-06-15 00:00:00

abstract：:Molecular studies of the rumen bacterium Ruminococcus flavefaciens are constrained by the lack of stable gene transfer systems. We report here on the characterization of RflFII, a restriction endonuclease isolated from R. flavefaciens FD-1. The enzyme is an isoschizomer of ScaI, and cleavage of the DNA is blunt-ended,...

journal_title：FEMS microbiology letters

authors： Morrison M,Mackie RI,White BA

更新日期：1994-09-15 00:00:00

abstract：:Contrary to its effect on rich medium, D-cycloserine showed no bactericidal effect on Zymomonas mobilis cells cultured on mineral medium. Addition of a mixture of glycine and glutamic acid to the mineral medium restored its bactericidal action. However, mutant enrichments run in these conditions were biased, with most...

journal_title：FEMS microbiology letters

authors： Pencreac'h G,Aït-Abdelkader N,Joset F,Baratti JC

更新日期：1996-09-01 00:00:00

abstract：:The role of the flagellum and chemotactic motility of Vibrio anguillarum for phagocytosis by and intracellular survival in fish macrophages was determined using a wild-type strain, a mutant without the flagellum, a mutant with a truncated flagellum and a non-chemotactic mutant. For all strains, the numbers of intracel...

journal_title：FEMS microbiology letters

authors： Larsen MH,Boesen HT

更新日期：2001-09-25 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

abstract：:The Tat machinery catalyzes the transport of folded proteins across the cytoplasmic membrane in bacteria and the thylakoid membrane in plants. Transport occurs only in the presence of an electric field (Δψ) and/or a pH (ΔpH) gradient, and thus, Tat transport is considered to be dependent on the proton motive force (pm...

journal_title：FEMS microbiology letters

authors： Hamsanathan S,Musser SM

更新日期：2018-06-01 00:00:00

abstract：:Pneumocystis is a parasitic fungus causing pneumonia in immunosuppressed mammals and S-adenosylmethionine a key intermediary metabolite for all cells. Other than a species of Rickettsia bacteria and an aberrant strain of the protozoan Amoeba proteus, Pneumocystis is the only cell known unable to synthesize AdoMet; it ...

journal_title：FEMS microbiology letters

authors： Merali S,Clarkson AB Jr

更新日期：2004-08-15 00:00:00