Inactivation of mycobacteriophage D29 using ferrous ammonium sulphate as a tool for the detection of viable Mycobacterium smegmatis and M. tuberculosis.

abstract：:Outer membrane vesicle formation occurs during Gram-negative bacterial growth. However, natural production of large amounts of outer membrane vesicles has only been described in a few bacterial genera. The purified vesicles of some bacterial pathogens have shown potential applications in vaccinology and in antibiotic ...

journal_title：Research in microbiology

authors： Henry T,Pommier S,Journet L,Bernadac A,Gorvel JP,Lloubès R

更新日期：2004-07-01 00:00:00

abstract：:The increase in genetic variability of a population can be selected during adaptation, as demonstrated by the selection of mutator alleles. The dynamics of this phenomenon, named second-order selection, can result in an improved adaptability of bacteria through regulation of all facets of mutation and recombination pr...

journal_title：Research in microbiology

authors： Tenaillon O,Taddei F,Radmian M,Matic I

更新日期：2001-01-01 00:00:00

abstract：:Pathogenic Vibrio cholerae strains were compared by fingerprinting with arbitrarily primed polymerase chain reaction (AP-PCR). They were O1 classical and El Tor strains and recent non-O1 Bengal strains. Ten oligonucleotides from a total of fifty-two tested gave distinctive patterns, and these strains were separated in...

journal_title：Research in microbiology

authors： Coelho A,Vicente AC,Baptista MA,Momen H,Santos FA,Salles CA

更新日期：1995-10-01 00:00:00

abstract：:The results of a multiple locus variable number of tandem repeat (VNTR) analysis (MLVA)-based study designed to understand the genetic diversity of soil and manure-borne Pseudomonas aeruginosa isolates, and the relationship between these isolates and a set of clinical and environmental isolates, are hereby reported. F...

journal_title：Research in microbiology

authors： Youenou B,Brothier E,Nazaret S

更新日期：2014-01-01 00:00:00

abstract：:The work described here continues our studies of the effects of subinhibitory concentrations of antibiotics on SOS and DNA repair gene expression in Staphylococcus aureus. Mitomycin C and the new-generation fluoroquinolone moxifloxacin induced expression of SOS response genes (lexA, recA, sosA, and umuC) in a ciproflo...

journal_title：Research in microbiology

authors： Mesak LR,Davies J

更新日期：2009-12-01 00:00:00

abstract：:Several studies indicate Actinobacillus (Haemophilus) actinomycetemcomitans and Fusobacterium nucleatum as etiologic agents of periodontal disease. Immunosuppressive factors produced by microorganisms probably contribute to the initiation and evolution of this disease. This study evaluated the antiproliferative activi...

journal_title：Research in microbiology

authors： do Vale CH,de Oliveira Fraga LA,Costa AS,Tavares CA,Martins-Filho OA,de Macedo Farias L,Roque de Carvalho MA

更新日期：2004-11-01 00:00:00

abstract：:Nisin production by Lactococcus lactis subsp. lactis has been investigated using lactose as carbon source. Whether or not continuous cultures were lactose-limited, maximum nisin titre was observed at an intermediate mu value with a sharp peak of activity between 0.2 and 0.3/h. The maximum specific growth rate obtained...

journal_title：Research in microbiology

authors： Meghrous J,Huot E,Quittelier M,Petitdemange H

更新日期：1992-11-01 00:00:00

abstract：:The chromosome of Escherichia coli is negatively supercoiled. This favours processes that unwind the two DNA strands, such as DNA replication. In this paper, we have investigated the effect of changed levels of overall chromosomal supercoiling on the initiation of DNA replication. Specifically, we have used flow cytom...

journal_title：Research in microbiology

authors： von Freiesleben U,Rasmussen KV

更新日期：1992-09-01 00:00:00

abstract：:Adhesion to the intestinal mucosa is considered to be one of the main selection criteria of lactic acid bacteria for probiotic use. Adhesive probiotics are, for example, considered to provide better antagonism against pathogenic bacteria when compared to non-adhesive strains. Here a new model is described for studying...

journal_title：Research in microbiology

authors： Vesterlund S,Paltta J,Karp M,Ouwehand AC

更新日期：2005-03-01 00:00:00

abstract：:There are several occasions when enumeration of Escherichia coli cells is needed. These include examination of urine specimens and water or food samples. Present methods rely on growth in more or less selective media (colony-forming units on agar or the most probable number method using liquid media). Unfortunately, n...

journal_title：Research in microbiology

authors： Regnault B,Martin-Delautre S,Lejay-Collin M,Lefèvre M,Grimont PA

更新日期：2000-09-01 00:00:00

abstract：:The kinetics of colicin N binding to the Escherichia coli surface, comprising the recognition of and association with cell-surface-exposed sites of OmpF porin, is a rapid event taking place during the first seconds of incubation. Immunogold labelling demonstrates the membrane localization of the colicin N bound to sen...

journal_title：Research in microbiology

authors： el Kouhen R,Bernadac A,Pagès JM

更新日期：1998-10-01 00:00:00

abstract：:Scedosporium apiospermum, a recently isolated phenol-degrading hyphomycete, was shown to be able to productively utilise the diaryl ester phenylbenzoate as its sole source of carbon and energy. The characterisation of degradation intermediates together with the detection of the corresponding catabolic enzymes in crude...

journal_title：Research in microbiology

authors： Claussen M,Schmidt S

更新日期：1999-07-01 00:00:00

abstract：:A novel acidophilic member of the phylum Actinobacteria was isolated from an acidic stream draining an abandoned copper mine in north Wales. The isolate (PY-F3) was demonstrated to be a heterotroph that catalyzed the oxidation of ferrous iron (but not of sulfur or hydrogen) under aerobic conditions, and the reduction ...

journal_title：Research in microbiology

authors： Jones RM,Johnson DB

更新日期：2015-02-01 00:00:00

abstract：:Ammonia-oxidizing archaea (AOA) and bacteria (AOB) are widely distributed in the natural environment and play crucial roles in the nitrification process and the removal of nitrogen (N). Although planktonic microbial community plays an important role in river biogeochemical cycles, few studies have attempted to address...

journal_title：Research in microbiology

authors： Sun W,Xia C,Xu M,Guo J,Sun G,Wang A

更新日期：2014-10-01 00:00:00

abstract：:The insertion of proteins into membranes generally requires the assistance of membrane proteins. A protein, designated Omp85 in Neisseria meningitidis, was shown to be required for the assembly of bacterial outer-membrane proteins. The protein is essential for the viability of the bacteria and is ubiquitous among Gram...

journal_title：Research in microbiology

authors： Voulhoux R,Tommassen J

更新日期：2004-04-01 00:00:00

abstract：:Species of Alicyclobacillus, Bacillus and Thermus genera were selected in order to study the possible presence of the (ADP-ribosyl)ation system. These bacteria are thermophilic, aerobic, and were isolated from different geothermal sources. Both activity and expression of (ADP-ribosyl)ating proteins were tested in cell...

journal_title：Research in microbiology

authors： Faraone-Mennella MR,De Maio A,Petrella A,Romano M,Favaloro P,Gambacorta A,Lama L,Nicolaus B,Farina B

更新日期：2006-07-01 00:00:00

abstract：:Bacillus subtilis ATCC6633 produces mycosubtilin, a non-ribosomally synthesized lipopeptide of the iturin family which presents antagonistic activities toward various phytopathogens. Different homologues with fatty acid moiety varying from C15 to C17 are usually co-produced, with their biological activities increasing...

journal_title：Research in microbiology

authors： Fickers P,Leclère V,Guez JS,Béchet M,Coucheney F,Joris B,Jacques P

更新日期：2008-07-01 00:00:00

abstract：:This communication describes the cloning of a 1.8-kb fragment from the genome of the corynephage phi AAU2, which aborts the phage lytic cycle when cloned on a high-copy shuttle vector. The associated phenotype, called Apld (aborting phage lytic development), was revealed by noting the reduced plaque size and lower eff...

journal_title：Research in microbiology

authors： Le Marrec C,Moreau S,Leret V,Schäffer A,Blanco C,Trautwetter A

更新日期：1998-03-01 00:00:00

abstract：:Streptococcus intermedius, an oral commensal and a cause of systemic pyogenic disease, expresses fimbriae. To identify the gene(s) encoding these fimbriae, we used a serum raised against purified fimbriae to screen libaries of recombinant lambda phages. The cloned gene cluster encoding S. intermedius fimbriae, (saliva...

journal_title：Research in microbiology

authors： Yamaguchi T,Matsumoto M,Sugimoto Y,Soutome S,Oho T

更新日期：2009-12-01 00:00:00

abstract：:The diversity and temporal dynamics of bacterial communities in pristine snow around two Russian Antarctic stations was investigated. Taxonomic analysis of rDNA libraries revealed that snow communities were dominated by bacteria from a small number of operational taxonomic units (OTUs) that underwent dramatic swings i...

journal_title：Research in microbiology

authors： Lopatina A,Krylenkov V,Severinov K

更新日期：2013-11-01 00:00:00

abstract：:In Neisseria gonorrhoeae, all penicillinase-specifying plasmids isolated so far share homology with each other and carry a 60% deleted sequence of TnA. Plasmid pHD131, an element isolated from Haemophilus ducreyi and carrying an intact copy of the ampicillin resistance transposable element, was introduced from Escheri...

journal_title：Research in microbiology

authors： Piffaretti JC,Soldati L

更新日期：1990-06-01 00:00:00

abstract：:Although great strides have been made in the development of recombinant attenuated Vibrio cholerae vaccine strains, the task has not been as simple as once imagined. The initial vaccine candidates proved to be unexpectedly reactogenic but further derivatives, such as CVD103-HgR, are well-tolerated, immunogenic and pro...

journal_title：Research in microbiology

authors： Kaper JB,Levine MM

更新日期：1990-09-01 00:00:00

abstract：:Bacillus laterosporus is a spore-forming bacterium characterized by its ability to produce a canoe-shaped lamellar parasporal inclusion, adjacent to the spore. In some B. laterosporus strains crystalline inclusions of various shapes and sizes, which are released separately from spores during the lysis of the sporangiu...

journal_title：Research in microbiology

authors： Smirnova TA,Minenkova IB,Orlova MV,Lecadet MM,Azizbekyan RR

更新日期：1996-06-01 00:00:00

abstract：:During the past twenty-nine years, not a single class of antimicrobial agents has been discovered that has led to new approved human drugs. Despite a dramatic increase in the potency of existing classes, the need for new effective antimicrobial agents continues. The bacterial phosphotransferase system (PTS) offers the...

journal_title：Research in microbiology

authors： Parr TR Jr,Saier MH Jr

更新日期：1992-06-01 00:00:00

abstract：:The adsorption complex of filamentous phage fd consists of two minor coat proteins, g3p and g6p, and is considered to be not only a structural entity, but also a functional unit to terminate phage assembly. Cells were infected with phage M13am8H1, which cannot assemble because it lacks the major coat protein g8p, alth...

journal_title：Research in microbiology

authors： Gailus V,Ramsperger U,Johner C,Kramer H,Rasched I

更新日期：1994-11-01 00:00:00

abstract：:Bacteriophages must destroy the bacterial cell wall to lyse their host and release their progeny into the environment. There are at least two distinct mechanisms by which phages destroy the cell wall. Bacteriophages with large genomes use a holin-endolysin system, while bacteriophages with small genomes encode a singl...

journal_title：Research in microbiology

authors： Bernhardt TG,Wang IN,Struck DK,Young R

更新日期：2002-10-01 00:00:00

abstract：:Bacterial membranes are known to form domains with specific lipid compositions and functions. Recently, using membrane binding fluorescent dyes, lipid spiral structures extending along the long axis of the cell were detected. These spirals were absent when the synthesis of phosphatidylglycerol and cardiolipin was disr...

journal_title：Research in microbiology

authors： Muchová K,Jamroškovič J,Barák I

更新日期：2010-11-01 00:00:00

abstract：:Mercury methylation and demethylation processes govern the fate of methylmercury in aquatic ecosystems. Under anoxic conditions, methylation activity is mainly of biological origin and is often the result of sulfate-reducing bacteria. In this study, the use of a luminescent biosensor for screening methylmercury produc...

journal_title：Research in microbiology

authors： Colin Y,Gury J,Monperrus M,Gentes S,Ayala Borda P,Goni-Urriza M,Guyoneaud R

更新日期：2018-01-01 00:00:00

abstract：:Klebsiella pneumoniae is one of the major Gram-negative bacterial pathogens causing hospital-acquired multidrug-resistant infections, and the antimicrobial treatment options are scarce. The lack of available antimicrobials has prompted the development of alternative strategies for the treatment of these infections. In...

journal_title：Research in microbiology

authors： Wang C,Li P,Niu W,Yuan X,Liu H,Huang Y,An X,Fan H,Zhangxiang L,Mi L,Zheng J,Liu Y,Tong Y,Mi Z,Bai C

更新日期：2019-01-01 00:00:00

abstract：:A new actinomycete strain designated US24 producing antibacterial activities against Gram-positive and Gram-negative bacteria was isolated from Tunisian soil. Culture characteristic studies strongly suggested that the US24 strain belonged to the genus Streptomyces. Analysis of the nucleotide sequence of the 16S rRNA g...

journal_title：Research in microbiology

authors： Mellouli L,Ben Ameur-Mehdi R,Sioud S,Salem M,Bejar S

更新日期：2003-06-01 00:00:00