Unusual structure of plasmid DNA formed in transformants of Escherichia coli.

abstract：:Production of aerobactin has been reported to be a virulence factor in members of the family Enterobacteriaceae. To investigate the protection afforded by humoral immunity directed towards aerobactin in infectious diseases caused by aerobactin-producing strains, we tested the efficacy of mAbAERO1, a murine monoclonal ...

journal_title：Research in microbiology

authors： Le Roy D,Crouzier C,Dho-Moulin M,Dumont AS,Bouchet A,Lafont JP,Andremont A

更新日期：1995-02-01 00:00:00

abstract：:In the genus Pseudomonas, two main lineages and 19 phylogenetic groups or subgroups have been defined based on DNA sequence studies of 16S rRNA, gyrB and rpoD genes. In the present study, 33 strains previously classified as Pseudomonas putida were phylogenetically affiliated with their closest relatives in the genus b...

journal_title：Research in microbiology

authors： Mulet M,García-Valdés E,Lalucat J

更新日期：2013-05-01 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：:Benzene is biodegraded in the absence of oxygen under a variety of terminal electron-accepting conditions. However, the mechanism by which anaerobic benzene degradation occurs is unclear. Phenol and benzoate have been consistently detected as intermediates of anaerobic benzene degradation, suggesting that the hydroxyl...

journal_title：Research in microbiology

authors： Coates JD,Chakraborty R,McInerney MJ

更新日期：2002-12-01 00:00:00

abstract：:The psychotrophic strain Pseudomonas fluorescens MFO is known to express several enzymatic activities in milk, including extracellular proteolytic activity, optimally when cells are grown at 17.5 degrees C. In order to study the nature of the mechanisms controlling the production of the extracellular protease, we devi...

journal_title：Research in microbiology

authors： Hellio FC,Orange N,Guespin-Michel JF

更新日期：1993-10-01 00:00:00

abstract：:The development of nascent cell division sites was studied in Escherichia coli strains containing ftsAts and ftsZts mutations in which septal development is arrested after shift to the restrictive temperature. Division sites were studied by measuring positions of plasmolysis bays, a visible marker for periseptal annul...

journal_title：Research in microbiology

authors： Cook WR,Rothfield LI

更新日期：1991-02-01 00:00:00

abstract：:A common effluent treatment plant (CETP) is a biological wastewater treatment facility that receives wastewater from different industries. The activated biomass in the CETP survives on a wide range of chemicals with no fixed wastewater characteristics. We carried out a diversity analysis of this activated biomass usin...

journal_title：Research in microbiology

authors： Kapley A,De Baere T,Purohit HJ

更新日期：2007-07-01 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：: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：:OprI, a small outer membrane lipoprotein from Pseudomonas aeruginosa, can be produced in large amounts and anchored at the surface on Escherichia coli cells. A four-time repeated (His-Cys) motif was fused to the C-terminal part of OprI. After induction, E. coli cells harbouring the recombinant oprI gene became more se...

journal_title：Research in microbiology

authors： Bouia A,Kholti A,Saghi M,Cornelis P

更新日期：2001-11-01 00:00:00

abstract：:A total of 176 strains of Salmonella enterica representing 116 serotypes were tested for the presence of the T6 epitope of the alpha-1,2-linked N-acetyl-D-glucosamine residue by reaction with a murine monoclonal antibody T6 specific for this structure in the Salmonella Ra core lipopolysaccharide (LPS). All 20 serotype...

journal_title：Research in microbiology

authors： Tsang RS,Schlecht S,Aleksic S,Chan KH,Chau PY

更新日期：1991-06-01 00:00:00

abstract：:A Gram-negative, short rod, aerobic bacterium, designated W11(T), was isolated from seawater. Heterotrophic growth was observed at 10-45 °C and pH 6-10. Optimal growth was observed at 30-37 °C and pH 7-9. It can grow in the presence of 0.5-12% NaCl (w/v), and the optimal NaCl required for growth was 5-6%. 16S rRNA gen...

journal_title：Research in microbiology

authors： Poddar A,Lepcha RT,Mukherjee D,Bhattacharyya D,Das SK

更新日期：2014-09-01 00:00:00

abstract：:The tolerance of the lactic acid bacterium Oenococcus oeni to hostile wine conditions is essential for the success of malolactic fermentation (MLF). In this study, reverse transcription quantitative PCR (RT-qPCR) was used to quantify the transcript level of 13 genes that could play a role in adaptation of O. oeni in w...

journal_title：Research in microbiology

authors： Beltramo C,Desroche N,Tourdot-Maréchal R,Grandvalet C,Guzzo J

更新日期：2006-04-01 00:00:00

abstract：:Development of effective strategies for treatment of candidiasis and other fungal diseases has posed a challenge, considering the increase in opportunistic fungal infections in HIV-positive and immunocompromised patients. The in vitro antifungal activity of essential oil from Ocimum gratissimum was investigated in ord...

journal_title：Research in microbiology

authors： Nakamura CV,Ishida K,Faccin LC,Filho BP,Cortez DA,Rozental S,de Souza W,Ueda-Nakamura T

更新日期：2004-09-01 00:00:00

abstract：:Growth of fluoroquinolone (FQ)-susceptible methicillin-resistant Staphylococcus aureus (MRSA) in the presence of sub-MIC FQ has been shown to enhance methicillin resistance in traditional nosocomial MRSA isolates. We aimed to confirm this phenomenon in nine community-associated MRSA (CA-MRSA) clinical isolates, and to...

journal_title：Research in microbiology

authors： Tattevin P,Basuino L,Chambers HF

更新日期：2009-04-01 00:00:00

abstract：:For nearly one hundred years, researchers have attempted to categorize botulinum neurotoxin-producing clostridia and the toxins that they produce according to biochemical characterizations, serological comparisons, and genetic analyses. Throughout this period the bacteria and their toxins have defied such attempts at ...

journal_title：Research in microbiology

authors： Smith TJ,Hill KK,Raphael BH

更新日期：2015-05-01 00:00:00

abstract：:Three Salmonella strains isolated from a lizard (Gallotia simoni) in the "Isla del Hierro" (Canary Islands, Spain) were serotyped as Salmonella bongori serotype 13,22:z39:-, which has not been described in the Kauffmann-White scheme of Salmonella serovars. In order to shed light on the assignment of those strains to t...

journal_title：Research in microbiology

authors： Herrera-León S,Saco M,Martínez Silvestre A,Silveira L,Echeita A,Usera MA

更新日期：2005-05-01 00:00:00

abstract：:Rhizobium leguminosarum bv. trifolii synthesizes extracellular polysaccharide (EPS) that is postulated to be a biologically active signalling molecule in clover symbiosis. A group of seven exopolysaccharide-deficient (Exo), non-nitrogen-fixing mutants of R. leguminosarum bv. trifolii strain 24.1 isolated by transposon...

journal_title：Research in microbiology

authors： Janczarek M,Skorupska A

更新日期：2003-07-01 00:00:00

abstract：:rRNA gene restriction patterns (ribotyping) were compared with phage typing, serotyping, enterotoxins and exfoliatin production in the analysis of 26 Staphylococcus aureus strains isolated from two different nosocomial outbreaks. Total DNA was cleaved by EcoRI restriction endonuclease. After agarose gel electrophoresi...

journal_title：Research in microbiology

authors： Meugnier H,Fernandez MP,Bes M,Brun Y,Bornstein N,Freney J,Fleurette J

更新日期：1993-01-01 00:00:00

abstract：:Heterotrophic microaerophilic bacteria, a diverse and ubiquitous group, are specialized for growth in O2 limited environments. Until recently, microaerophilic bacteria have been grouped with obligate aerobic organisms whose metabolic rates slow in response to physiological O2 limitation. In contrast, microaerophilic b...

journal_title：Research in microbiology

authors： Ludwig RA

更新日期：2004-03-01 00:00:00

abstract：:Bacillus species as a group offer several advantages over other bacteria for protection against root pathogens because of their ability to form endospores, and because of the broad-spectrum activity of their antibiotics. The objectives of this work were to determine the ability of strains of Bacillus to inhibit Fusari...

journal_title：Research in microbiology

authors： Cavaglieri L,Orlando J,Rodríguez MI,Chulze S,Etcheverry M

更新日期：2005-06-01 00:00:00

abstract：:Vegetative incompatibility limits heterokaryon formation in fungi. It results from genetic differences at specific loci (het loci). Characterization of het genes and, more recently, of incompatibility reaction suppressors has, provided insight into the mechanisms involved. A link between development, vegetative incomp...

journal_title：Research in microbiology

authors： Loubradou G,Turcq B

更新日期：2000-05-01 00:00:00

abstract：:Ribosomal DNA fingerprints from 103 pathogenic Leptospira strains were examined using EcoRI restriction and fragment length polymorphisms of rRNA genes. Sixty-nine new leptospiral ribotypes were described, in addition to 49 previously observed. Except for 5 strains, a good correlation between DNA homology data and rib...

journal_title：Research in microbiology

authors： Perolat P,Lecuyer I,Postic D,Baranton G

更新日期：1993-01-01 00:00:00

abstract：:Replicon typing is the identification of plasmids by hybridization with specific DNA probes which contain the genes involved in plasmid maintenance. This new method has been used to classify plasmids into replicon (rep) groups which can often be correlated with incompatibility (Inc) groups. We studied 71 multiresistan...

journal_title：Research in microbiology

authors： Llanes C,Couturier M,Asfeld L,Grimont F,Michel-Briand Y

更新日期：1994-01-01 00:00:00

abstract：:The present mini-review summarizes data in selected fields of basic genetics which were exclusively obtained in agreement with the principles of SOS Chromotest methodology and with Escherichia coli PQ37 sfiA::lacZ as a tester strain. ...

journal_title：Research in microbiology

authors： Vasilieva S

更新日期：2002-09-01 00:00:00

abstract：:Fungal dimorphism is the capacity of certain species of fungi to grow in the form of budding yeasts or mycelium depending on the environmental conditions. This characteristic is a complex phenomenon that involves modifications of the molecular machinery in response to different environmental signals. Through the use o...

journal_title：Research in microbiology

authors： Morales-Vargas AT,Domínguez A,Ruiz-Herrera J

更新日期：2012-06-01 00:00:00

abstract：:From the nose of a patient with aspiration pneumonia, we isolated a new bacterium by amoebal co-culture using Acanthamoeba polyphaga. Based on phenotypic, 16S rRNA and phylogenetic analysis, we show that this isolate represents a new species within the genus Rhodobacter and and we have named it Rhodobacter massiliensi...

journal_title：Research in microbiology

authors： Greub G,Raoult D

更新日期：2003-11-01 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：:While the scientific contributions of François Jacob were outstanding, I also consider that his conception of science, and of its place among other forms of knowledge, is also highly original, and important for the future of science in our societies. His contributions to the history and philosophy of science were neit...

journal_title：Research in microbiology

authors： Morange M

更新日期：2014-06-01 00:00:00

abstract：:We have used a mouse Peyer's patch gut loop model to investigate the role of the intestinal membranous epithelial (M) cells in the pathogenesis of Salmonella typhimurium. These specialized antigen sampling cells are located in the follicle-associated epithelium (FAE) overlying the isolated and aggregated lymphoid foll...

journal_title：Research in microbiology

authors： Clark MA,Jepson MA,Simmons NL,Hirst BH

更新日期：1994-09-01 00:00:00