Abstract：
:The outer membrane of gram-negative bacteria acts as a barrier against harmful lipophilic compounds and larger molecules unable to diffuse freely through the porins. However, outer membrane proteins together with the Tol-Pal and TonB systems have been exploited for the entry of macromolecules such as bacteriocins and phage DNA through the Escherichia coli cell envelope. The TonB system is involved in the active transport of iron siderophores and vitamin B12, while no more precise physiological role of the Tol-Pal system has yet been defined than its requirement for cell envelope integrity. These two systems, containing an energized inner membrane protein interacting with outer membrane proteins, share similarities.
journal_name
Res Microbioljournal_title
Research in microbiologyauthors
Lloubès R,Cascales E,Walburger A,Bouveret E,Lazdunski C,Bernadac A,Journet Ldoi
10.1016/s0923-2508(01)01226-8subject
Has Abstractpub_date
2001-07-01 00:00:00pages
523-9issue
6eissn
0923-2508issn
1769-7123pii
S0923-2508(01)01226-8journal_volume
152pub_type
杂志文章,评审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
pub_type： 杂志文章
doi：10.1016/j.resmic.2012.03.002
更新日期：2012-06-01 00:00:00
abstract：:During an epidemiologic survey, an unidentified strain of Legionella was isolated from water of a thermal spa in France. The strain (Lyon 8420412) had the cultural and biochemical characteristics typical of the genus Legionella. In direct immunofluorescence tests, the strain reacted weakly with fluorescein-conjugated ...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/0923-2508(89)90086-7
更新日期：1989-10-01 00:00:00
abstract：:The sensitivity of a bacterium to beta-lactam antibiotics depends upon the interplay between 3 independent factors: the sensitivity of the essential penicillin-binding enzyme(s), the quantity and properties of the beta-lactamase(s) and the diffusion barrier that the outer-membrane of Gram-negative bacteria can represe...
journal_title：Research in microbiology
pub_type： 杂志文章,评审
doi：10.1016/0923-2508(91)90084-n
更新日期：1991-07-01 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
pub_type： 传,历史文章,杂志文章
doi：10.1016/j.resmic.2014.05.001
更新日期：2014-06-01 00:00:00
abstract：:Sub-MIC antibiotics differentially modulate transcription of subsets of genes by unknown mechanisms. Paradoxically, the RNA polymerase inhibitor rifampicin is able to both upmodulate as well as downmodulate transcription when present at sub-MIC levels. In this study, we analyzed DNA sequences required for transcriptio...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/j.resmic.2013.02.003
更新日期：2013-06-01 00:00:00
abstract：:Bordetella isolates in the Saint Petersburg region have been monitored since 1998. Over the past ten years, concomitant with the increase in pertussis whole-cell vaccine coverage, the incidence of whooping cough has decreased. However, this decrease exists only for Bordetella pertussis infections, as the incidence of ...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/j.resmic.2010.09.013
更新日期：2010-12-01 00:00:00
abstract：:Rapid identification of clinically important yeasts can facilitate the initiation of anti-fungal therapy, since susceptibility is largely species-dependent. We evaluated melting peak and melting curve analysis of the internally transcribed spacer region 2 fragment (ITS2-MCA) as an identification tool for distinguishin...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/j.resmic.2012.10.017
更新日期：2013-02-01 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
pub_type： 杂志文章
doi：10.1016/0923-2508(92)90075-y
更新日期：1992-11-01 00:00:00
abstract：:This paper presents the effects of the composition of different media (i.e., Tryptic soy broth (TSB), Brain heart infusion (BHI), Listeria enrichment broth (LEB), Fraser broth (FB) and University of Vermont medium (UVM)) on the detection of a short peptide fragment PepD specific to the p60 protein (p60) of L. monocyto...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/j.resmic.2019.03.004
更新日期：2019-01-01 00:00:00
abstract：:Plasmids that express an enzymatically active beta-galactosidase in an Escherichia coli delta lac strain were isolated from libraries of recombinant plasmids containing Vibrio cholerae chromosomal DNA. Deletion analysis localized the gene responsible for beta-galactosidase activity on a 3.1-kb DNA fragment, and the ge...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/0923-2508(92)90031-i
更新日期：1992-01-01 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
pub_type： 杂志文章
doi：10.1016/s0923-2508(00)00222-9
更新日期：2000-09-01 00:00:00
abstract：:A variety of pathways for carbon and electron flow in the bacterium Escherichia coli and in other enteric bacteria are differentially expressed depending on whether molecular oxygen is present in the cell environment. This review briefly summarizes the metabolic pathways operative during aerobic versus anaerobic cell ...
journal_title：Research in microbiology
pub_type： 杂志文章,评审
doi：10.1016/0923-2508(94)90092-2
更新日期：1994-06-01 00:00:00
abstract：:Tellurite-containing media are widely used for the screening and isolation of Shiga toxin-producing Escherichia coli (STEC) O157:H7, but tellurite resistance among non-O157 STEC is poorly characterized. Therefore, we investigated 202 STEC strains representing 61 different serotypes from humans, animals or food for the...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/j.resmic.2006.10.007
更新日期：2007-03-01 00:00:00
abstract：:Association with a surface in a structure known as biofilm is the prevailing microbial lifestyle. Here we show the kinetics of biofilm formation of Escherichia coli W3110 in static cultures growing under aerobic or anaerobic conditions. Aerobically growing cells in LB medium started to produce detectable amounts of bi...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/j.resmic.2004.03.004
更新日期：2004-09-01 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
pub_type： 杂志文章
doi：10.1016/j.resmic.2014.07.008
更新日期：2014-09-01 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
pub_type： 杂志文章
doi：10.1016/0923-2508(94)90042-6
更新日期：1994-11-01 00:00:00
abstract：:Although this volume is dedicated to honoring François Jacob, I would like my contribution to broaden the context by recalling the background within which the scientists of those times operated. The specific scientific accomplishments of Jacob will certainly be covered by the other contributors who collaborated with h...
journal_title：Research in microbiology
pub_type： 传,历史文章,杂志文章
doi：10.1016/j.resmic.2014.05.027
更新日期：2014-06-01 00:00:00
abstract：:There is still an urgent requirement for more sensitive, cost-effective methods for detection and susceptibility testing of mycobacteria in clinical samples. We have been investigating a simple bacteriophage-based system which could be used for both purposes. As this depends upon the detection of phages which have suc...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/s0923-2508(98)80003-x
更新日期：1998-07-01 00:00:00
abstract：:Twenty-one Branhamella catarrhalis strains selected for their diversity by esterase electrophoretic polymorphism, and belonging to 20 distinct zymotypes, were studied by restriction fragment length polymorphism (RFLP) of total DNA after ethidium bromide staining and of ribosomal DNA regions (ribotyping). The former an...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/0923-2508(91)90191-c
更新日期：1991-06-01 00:00:00
abstract：:Infections caused by Staphylococcus aureus are prevalent. The dramatically reduced discovery of new antibiotics, as well as the persistent emergence of resistant bacteria, represents a major health problem in both hospital and community settings. Using antibiotic enhancers to rescue existing classes of antibiotics is ...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/j.resmic.2016.08.002
更新日期：2017-01-01 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
pub_type： 杂志文章
doi：10.1016/S0923-2508(03)00024-X
更新日期：2003-04-01 00:00:00
abstract：:5-Mycoloyl-beta-arabinofuranosyl-(1-->2)-5-mycoloyl-alpha-ar abinofuranosyl-(1-->1')-glycerol, an antigenic glycolipid from the Mycobacterium avium-intracellulare complex (MAC) was examined for its applicability to the serodiagnosis of MAC infection by ELISA. Serum IgM antibody titres against this glycolipid in health...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/0923-2508(93)90048-7
更新日期：1993-03-01 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
pub_type： 杂志文章
doi：10.1016/0923-2508(89)90193-9
更新日期：1989-11-01 00:00:00
abstract：:Pseudomonas mendocina carrying a novel class 1 integron containing an IMP-8 gene was isolated from an inanimate surface in a female ward sanitary facility of the Hospital Infante D. Pedro, Aveiro, Portugal. Hybridization with the integrase gene (intI1) and 16S rDNA revealed that the integron is chromosomally located. ...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/j.resmic.2010.03.004
更新日期：2010-05-01 00:00:00
abstract：:Jarosite precipitates formed in iron oxidising bioreactors have been shown to harbour iron-oxidisers. The aim of this study was to develop an iron oxidising bioprocess where microorganisms are retained solely on biogenic jarosite particles. Based on preliminary experiments using a fluidised-bed bioreactor (FBR), the f...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/j.resmic.2020.06.004
更新日期：2020-01-01 00:00:00
abstract：:FliA is known to be a sigma factor that regulates bacterial flagella gene expression. Accumulating evidence suggests that FliA is involved in bacterial behavior other than motility. To elucidate the contribution of FliA to Pseudomonas aeruginosa pathophysiology, we analyzed the biological properties and gene expressio...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/j.resmic.2018.02.001
更新日期：2018-04-01 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
pub_type： 杂志文章
doi：10.1016/0923-2508(90)90128-d
更新日期：1990-09-01 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
pub_type： 杂志文章
doi：10.1016/s0923-2508(99)80037-0
更新日期：1999-04-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.resmic.2005.12.002
更新日期：2006-05-01 00:00:00
abstract：:Sequences of the most conserved proteins encoded by transposable (pro)phages were used to search recently sequenced Firmicute genomes for candidate transposable prophages. One complete Mu-like prophage, SglyMu-1, was identified, in four copies, in the Syntrophobotulus glycolicus DSM 8271 chromosome sequence. Related p...
journal_title：Research in microbiology
pub_type： 杂志文章
doi：10.1016/j.resmic.2013.01.008
更新日期：2013-05-01 00:00:00
