Extraction, partial purification and characterization of a bacteriocin (fragicilin) produced by a strain of Bacteroides fragilis isolated from Callithrix penicillata.

abstract：:The neurotoxin gene from a strain of Clostridium botulinum type A causing infant botulism was cloned as a series of overlapping polymerase chain reaction (PCR) fragments generated using primers designed to conserved regions of published botulinal toxin (BoNT) sequences. Translation of the nucleotide sequence derived f...

journal_title：Research in microbiology

authors： Willems A,East AK,Lawson PA,Collins MD

更新日期：1993-09-01 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：:Soil is one of the most complex and challenging environments for microbiologists. In fact, although it contains the largest microbial diversity on the planet, the majority of these microbes are still uncharacterized and represent an enormous unexplored reservoir of genetic and metabolic diversity. Metagenomics, the st...

journal_title：Research in microbiology

authors： Mocali S,Benedetti A

更新日期：2010-07-01 00:00:00

abstract：:RNase E is an endoribonuclease and plays a central role in RNA metabolism. Cyanobacteria, as ancient oxygen-producing photosynthetic bacteria, also contain RNase E homologues. Here, we introduced mutations into the S1 subdomain (F53A), the 5'-sensor subdomain (R160A), and the DNase I subdomain (D296A) according to the...

journal_title：Research in microbiology

authors： Yan H,Cheng Y,Wang L,Chen W

更新日期：2020-01-01 00:00:00

abstract：:A collection of 57 strains of hyperthermophilic Archaea from the order Thermococcales was screened for the presence of plasmids; 9 plasmids present in six of these strains were isolated and characterized in terms of size and cross-hybridization. The Notl macrorestriction patterns of genomic DNA of strains harbouring t...

journal_title：Research in microbiology

authors： Benbouzid-Rollet N,López-García P,Watrin L,Erauso G,Prieur D,Forterre P

更新日期：1997-12-01 00:00:00

abstract：:A total of 28 species of Legionella could be differentiated by rRNA gene restriction patterns generated after cleavage of total DNA with either EcoRV or HindIII restriction endonucleases, and hybridization of fragments with 32P-labelled Escherichia coli 16 + 23S rRNA. Different species gave different fragment patterns...

journal_title：Research in microbiology

authors： Grimont F,Lefèvre M,Ageron E,Grimont PA

更新日期：1989-11-01 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

abstract：:The mechanism by which TrwB acts as a DNA transporter in bacterial conjugation is analyzed. Based on a parallelism between TrwB and F(1)-ATPase, TrwB would use the energy derived from ATP hydrolysis to pump DNA through its central channel, in a manner similar to that used by F(1)-ATPase to produce a rotary movement of...

journal_title：Research in microbiology

authors： Cabezon E,de la Cruz F

更新日期：2006-05-01 00:00:00

abstract：:Staphylococcus xylosus is a commensal species commonly found on the skin of mammals, but also currently used as starter culture for meat fermentation. Most strains of this species colonize by forming a biofilm on abiotic surfaces. We show here that the majority of S. xylosus strains also exhibit extensive colony sprea...

journal_title：Research in microbiology

authors： Dordet-Frisoni E,Gaillard-Martinie B,Talon R,Leroy S

更新日期：2008-05-01 00:00:00

abstract：:Sequences of the lacSZ operon of 29 Streptococcus thermophilus strains from different dairy products were determined. Differences in sequence among the strains were detected within LacS more often than in the LacZ gene. The sequences were aligned and compared and it was possible to gather the strains into three groups...

journal_title：Research in microbiology

authors： Ercolini D,Fusco V,Blaiotta G,Coppola S

更新日期：2005-03-01 00:00:00

abstract：:Cell death induced by adherence of Staphylococcus aureus was observed in Cryptococcus neoformans. To investigate this death mechanism, we examined three factors: actin dynamics using rhodamine-phalloidin staining, accumulation of reactive oxygen species (ROS) via conversion of 2',7'-dichlorofluorescein diacetate to 2'...

journal_title：Research in microbiology

authors： Ikeda R,Sawamura K

更新日期：2008-11-01 00:00:00

abstract：:We showed in 1988 that there are two strains of Chlamydia psittaci which infect the koala (Phascolarctos cinereus). In order to further investigate the role of these chlamydial strains in pathogenesis, we have attempted to identify genes of koala type I strain chlamydia which are involved in the immunogenic response. ...

journal_title：Research in microbiology

authors： Girjes AA,Carrick FN,Lavin MF

更新日期：1997-06-01 00:00:00

abstract：:Sequence analysis of the 16S ribosomal RNA gene was used to study bacterial diversity of a pristine forest soil and of two cultures of the same soil enriched with cellulolytic bacteria. Our analysis revealed high bacterial diversity in the native soil sample, evidencing at least 10 phyla, in which Actinobacteria, Prot...

journal_title：Research in microbiology

authors： Talia P,Sede SM,Campos E,Rorig M,Principi D,Tosto D,Hopp HE,Grasso D,Cataldi A

更新日期：2012-04-01 00:00:00

abstract：:Long polar fimbriae (LPF) are related to type I fimbriae in genetic organization and were first identified in Salmonella enterica serovar Typhimurium. Four lpfA genetic variants designated lpfA(O157/OI-141), lpfA(O157/OI-154), lpfA(O26) and lpfA(O113) have been identified in Shiga toxin-producing Escherichia coli (STE...

journal_title：Research in microbiology

authors： Toma C,Higa N,Iyoda S,Rivas M,Iwanaga M

更新日期：2006-03-01 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：:The expression of the feruloyl esterase gene faeA, the alpha-glucuronidase gene aguA, the endoxylanase gene xlnB, and the beta-xylosidase gene xlnD from Aspergillus niger on xylose was studied in a wild-type strain and in a CreA mutant. A decrease in expression of all four genes was observed with increasing xylose con...

journal_title：Research in microbiology

authors： de Vries RP,Visser J,de Graaff LH

更新日期：1999-05-01 00:00:00

abstract：:Total genomic DNA isolated by concentrating seawater and mercury-resistant bacteria were hybridized with a mer probe to detect the presence of homologous DNA sequences in marine coastal waters of the Bay of Bengal, India. Coastal water extracts induced with mercury hybridized with the mer operon of transposon Tn501. M...

journal_title：Research in microbiology

authors： Prabu SK,Mahadevan A

更新日期：1992-03-01 00:00:00

abstract：:For a number of years now, we have argued that current models for the control of initiation of DNA synthesis, chromosomal partitioning and septum formation in Escherichia coli are unsatisfactory. Indeed, we could argue that despite considerable efforts, with the possible exception of dnaA and ftsZ, no genes specifical...

journal_title：Research in microbiology

authors： Casaregola S,Chen M,Bouquin N,Norris V,Jacq A,Goldberg M,Margarson S,Tempete M,Mckenna S,Sweetman H

更新日期：1991-02-01 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：: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：:The Pseudomonas aeruginosa protein AlgR2 (AlgQ) was originally identified as a regulatory protein implicated in alginate production. It also regulates the synthesis of polyphosphate as well as of a variety of secretable virulence factors, upregulating neuraminidase and siderophore synthesis and downregulating rhamnoli...

journal_title：Research in microbiology

authors： Ledgham F,Soscia C,Chakrabarty A,Lazdunski A,Foglino M

更新日期：2003-04-01 00:00:00

abstract：:At the beginning of the 20th century, it was discovered at the Pasteur Institute in Tunis that epidemic typhus is transmitted by the human body louse. The complete genome sequence of its causative agent, Rickettsia prowazekii, was determined at Uppsala University in Sweden at the end of the century. In this mini-revie...

journal_title：Research in microbiology

authors： Andersson JO,Andersson SG

更新日期：2000-03-01 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 chitinolytic activity of Verticillium cfr. lecanii A3, a strain isolated from continental Antarctica, was compared to those of two selected strains of Trichoderma harzianum. After 72 h of incubation at 25 degrees C in media containing chitin as the sole carbon source, all strains showed the same enzyme activity (c...

journal_title：Research in microbiology

authors： Fenice M,Selbmann L,Di Giambattista R,Federici F

更新日期：1998-04-01 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：: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：: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：:Helicobacter spp. have been the focus of considerable research because of the role of this genus in gastrointestinal diseases. We infected NIH germ-free mice with Helicobacter trogontum, a recently described intestinal bacterium of rats, in order to study the distribution of this bacterium in the gastrointestinal trac...

journal_title：Research in microbiology

authors： Moura SB,Mendes EN,Queiroz DM,Nicoli JR,Cabral MM,Magalhaes PP,Rocha GA,Vieira EC

更新日期：1999-04-01 00:00:00

abstract：:Monopolization of the vaginal econiche by a limited number of Lactobacillus species, resulting in low pH of 3.5-4.5, has been shown to protect women against vaginal dysbiosis, sexually transmitted infections and adverse pregnancy outcomes. Still, controversy exists as to which characteristics of lactobacilli are most ...

journal_title：Research in microbiology

authors： Vaneechoutte M

更新日期：2017-01-01 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