abstract：:Microbial transformation of arsenic species and their interaction with the carbon cycle play a major role in the mobility of this toxic metalloid in the environment. The influence of simple or complex organic substrates on arsenic bio-oxidation was studied using two bacterial strains: one - the arsenivorans strain of ...

journal_title：Research in microbiology

authors： Lescure T,Joulian C,Charles C,Ben Ali Saanda T,Charron M,Breeze D,Bauda P,Battaglia-Brunet F

更新日期：2020-01-01 00:00:00

abstract：:In heap bioleaching and waste-rock dumps, complex microbial communities exist in the flowing and interstitial liquid phases and mineral surface-associated biofilms, often embedded in extracellular polymeric substances (EPS). Microbial activity in the interstitial phase and mineral ore surface facilitates mineral degra...

journal_title：Research in microbiology

authors： Makaula DX,Huddy RJ,Fagan-Endres MA,Harrison STL

更新日期：2020-01-01 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：: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

authors： Ahoranta S,Hulkkonen H,Salminen T,Kuula P,Puhakka JA,Lakaniemi AM

更新日期：2020-01-01 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：: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

authors： Etty MC,D'Auria S,Fraschini C,Salmieri S,Lacroix M

更新日期：2019-01-01 00:00:00

abstract：:Energy-coupling factor (ECF) transporters mediate the uptake of micronutrients in prokaryotes. They consist of two ATP-binding-cassette family ATPases, a transmembrane coupling protein (T component) and a substrate-binding membrane protein (S component). ECF transporters for Co2+ and Ni2+ ions have one or two addition...

journal_title：Research in microbiology

authors： Finkenwirth F,Eitinger T

更新日期：2019-01-01 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

authors： Lo YL,Chen CL,Shen L,Chen YC,Wang YH,Lee CC,Wang LC,Chuang CH,Janapatla RP,Chiu CH,Chang HY

更新日期：2018-04-01 00:00:00

abstract：:DegS and DegU make up a two component system belonging to a class of signal transduction systems that play important roles in a broad range of bacterial responses to the environment. However, little study has been done to explore the physiological functions of DegS-DegU in mosquitocidal Lysinibacillus sphaericus. In t...

journal_title：Research in microbiology

authors： Hu Y,Cai Q,Tian S,Ge Y,Yuan Z,Hu X

更新日期：2018-04-01 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：:To understand antibiotic resistance in Gram-negative bacteria, a key point is to investigate antibiotic accumulation, which is defined by influx and efflux. Several methods exist to evaluate membrane permeability and efflux pump activity, but they present disadvantages and limitations. An optimized spectrofluorimetric...

journal_title：Research in microbiology

authors： Masi M,Dumont E,Vergalli J,Pajovic J,Réfrégiers M,Pagès JM

更新日期：2018-01-01 00:00:00

abstract：:Six genes encoding cold-shock-like proteins, including cspE, are contained within the genome of Acinetobacter oleivorans DR1. All six genes are similar in size as well as amino acid identity, but appear to be differentially regulated under stressful conditions. Four of these genes (cspA, cspB, cspC and cspE) were func...

journal_title：Research in microbiology

authors： Kim J,Ha S,Park W

更新日期：2018-01-01 00:00:00

abstract：:Rhodococcus strains are important biocatalysts used for biotechnological production of acrylamide catalysed by a nitrile hydratase (NHase) containing cobalt. This metalloenzyme is present at high intracellular concentrations representing up to 50% of the soluble proteins in Rhodococcus rhodochrous M8 strain. Cobalt io...

journal_title：Research in microbiology

authors： Lavrov KV,Shemyakina AO,Grechishnikova EG,Novikov AD,Derbikov DD,Kalinina TI,Yanenko AS

更新日期：2018-01-01 00:00:00

abstract：:Bacteria of the Bacillus cereus group are environmental Gram-positive spore-forming bacteria ubiquitously distributed. Despite the high degree of genetic similarity among the different strains, they show strong phenotypic variability, from mammal or entomopathogen strains to soil-dwelling saprophytes, and from psychro...

journal_title：Research in microbiology

authors： Patiño-Navarrete R,Sanchis V

更新日期：2017-05-01 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：:Measuring gene expression at the single cell and single molecule level has recently made possible the quantitative measurement of stochasticity of gene expression. This enables identification of the probable sources and roles of noise. Gene expression noise can result in bacterial population heterogeneity, offering sp...

journal_title：Research in microbiology

authors： Bury-Moné S,Sclavi B

更新日期：2017-01-01 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

authors： Wang D,Lu C,Sun F,Cui M,Mu H,Duan J,Geng H

更新日期：2017-01-01 00:00:00

abstract：:Respiration on trimethylamine oxide (TMAO) allows bacterial survival under anoxia. In Shewanella oneidensis, Tor is the system involved in TMAO respiration and it is encoded by the torECAD operon. The torA and torC genes encode TorA terminal reductase and the TorC c-type cytochrome, respectively. Sequence analysis sug...

journal_title：Research in microbiology

authors： Lemaire ON,Honoré FA,Jourlin-Castelli C,Méjean V,Fons M,Iobbi-Nivol C

更新日期：2016-10-01 00:00:00

abstract：:Although chromosomal replication is an essential feature of the bacterial life cycle, the replication mechanism and involved molecular players have never been properly characterized in the Acetobacter genera. Thanks to whole-genome sequencing, the unknown replication proteins from Acetobacter pasteurianus and Acetobac...

journal_title：Research in microbiology

authors： Bugala J,Cimová V,Grones P,Grones J

更新日期：2016-10-01 00:00:00

abstract：:Haemophilus parainfluenzae and Haemophilus influenzae, upper respiratory tract microbiota representatives, are able to colonize natural and artificial surfaces as biofilm. The aim of the present study was to assay the effect of ten 1,2,4-triazole-ciprofloxacin hybrids on planktonic or biofilm-forming haemophili cells ...

journal_title：Research in microbiology

authors： Kosikowska U,Andrzejczuk S,Plech T,Malm A

更新日期：2016-10-01 00:00:00

abstract：:Chinoike Jigoku ("Blood Pond Hell") is located in the hot spring town of Beppu on the southern island of Kyushu in Japan, and is the site of a red-colored acidic geothermal pond. This study aimed to investigate the microbial population composition in this extremely acidic environment and to isolate/characterize acidop...

journal_title：Research in microbiology

authors： Masaki Y,Tsutsumi K,Hirano S,Okibe N

更新日期：2016-09-01 00:00:00

abstract：:The understanding of biofilm formation by bioleaching microorganisms is of great importance for influencing mineral dissolution rates and to prevent acid mine drainage (AMD). Thermo-acidophilic archaea such as Acidianus, Sulfolobus and Metallosphaera are of special interest due to their ability to perform leaching at ...

journal_title：Research in microbiology

authors： Castro C,Zhang R,Liu J,Bellenberg S,Neu TR,Donati E,Sand W,Vera M

更新日期：2016-09-01 00:00:00

abstract：:Eight strains of acidophilic bacteria, isolated from mine-impacted and geothermal sites from different parts of the world, were shown to form a distinct clade (proposed genus "Acidibacillus") within the phylum Firmicutes, well separated from the acidophilic genera Sulfobacillus and Alicyclobacillus. Two of the strains...

journal_title：Research in microbiology

authors： Holanda R,Hedrich S,Ňancucheo I,Oliveira G,Grail BM,Johnson DB

更新日期：2016-09-01 00:00:00

abstract：:(51)V NMR spectroscopy was used for detection and identification of cell-associated vanadate (V(5+)) species after exposure of Phycomyces blakesleeanus mycelium, in exponential phase of growth, to sodium orthovanadate. Complete disappearance of monomer and dimer signals and decreased intensity of the tetramer signal w...

journal_title：Research in microbiology

authors： Žižić M,Miladinović Z,Stanić M,Hadžibrahimović M,Živić M,Zakrzewska J

更新日期：2016-07-01 00:00:00

abstract：:The biological complexity of trade-offs has been a major obstacle in understanding bacterial diversity and coexistence. Here we reduce the biological complexity by using isogenic Escherichia coli strains differing only in a multiplication-survival trade-off regulated by RpoS. The contribution of trade-off characterist...

journal_title：Research in microbiology

authors： Maharjan R,Ferenci T

更新日期：2016-04-01 00:00:00

abstract：:In this review, we synthesise current models and recent comparative genomic studies describing how bacterial species may emerge through adaptation to a new ecological niche and maintain themselves in the same niche over long time periods. We notably consider the impact of genetic exchange with phylogenetically close r...

journal_title：Research in microbiology

authors： Lassalle F,Muller D,Nesme X

更新日期：2015-12-01 00:00:00

abstract：:Viruses play important roles in aquatic ecosystems, but deep-sea bacteriophages remain largely unexplored. A temperate bacteriophage (termed vB_PstS-1) was identified from the psychrotolerant gammaproteobacterium Pseudomonas stutzeri 1-1-1b, which was isolated from hadopelagic water (depth of 7000 m) of the Japan Tren...

journal_title：Research in microbiology

authors： Yoshida M,Yoshida-Takashima Y,Nunoura T,Takai K

更新日期：2015-11-01 00:00:00

abstract：:Riemerella anatipestifer (RA) causes major economic losses to the duck industry. Autoinducer-2 (AI-2) is a quorum-sensing signal that regulates bacterial physiology. The luxS and pfs genes are required for AI-2 synthesis in many bacterial species. pfs encodes Pfs, which functions upstream of LuxS in the biosynthesis o...

journal_title：Research in microbiology

authors： Han X,Liu L,Fan G,Zhang Y,Xu D,Zuo J,Wang S,Wang X,Tian M,Ding C,Yu S

更新日期：2015-07-01 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：:Members of the genus Cronobacter are responsible for cases of meningitis and bacteremia with high fatality rates in neonates. Macrophage uptake of invading microbes is an innate process, and it has been proposed that macrophage infectivity potentiator (Mip) like proteins enhance the ability of pathogens to survive wit...

journal_title：Research in microbiology

authors： Eshwar AK,Tasara T,Stephan R,Lehner A

更新日期：2015-04-01 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：:The response of Acidithiobacillus ferrooxidans ATCC 23270 to copper was analyzed in sulfur-grown cells by using quantitative proteomics. Forty-seven proteins showed altered levels in cells grown in the presence of 50 mM copper sulfate. Of these proteins, 24 were up-regulated and 23 down-regulated. As seen before in fe...

journal_title：Research in microbiology

authors： Almárcegui RJ,Navarro CA,Paradela A,Albar JP,von Bernath D,Jerez CA

更新日期：2014-11-01 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：:Magnetotactic bacteria (MTB) are a group of Gram-negative bacteria synthesizing magnetic crystals that allow them aligning along magnetic field lines. They have diverse morphologies including cocci, rods, vibrio, spirilla, and multicellular magnetotactic prokaryotes (MMPs). MMPs are composed of 10-57 cells with peritr...

journal_title：Research in microbiology

authors： Zhang R,Chen YR,Du HJ,Zhang WY,Pan HM,Xiao T,Wu LF

更新日期：2014-09-01 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

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

更新日期：2014-09-01 00:00:00

abstract：:Biological nitrogen fixation (BNF) is a tightly regulated process that is carried out by diazotrophic microorganisms. The regulatory mechanisms of BNF-related genes are well characterized in Gram-negative models, but they are poorly understood in Gram-positive bacteria. Paenibacillus riograndensis SBR5(T) is a Gram-po...

journal_title：Research in microbiology

authors： Fernandes Gde C,Trarbach LJ,de Campos SB,Beneduzi A,Passaglia LM

更新日期：2014-09-01 00:00:00

abstract：:Lipoic acid is a covalently-bound enzyme cofactor required for central metabolism all three domains of life. In the last 20 years the pathway of lipoic acid synthesis and metabolism has been established in Escherichia coli. Expression of the genes of the lipoic acid biosynthesis pathway was believed to be constitutive...

journal_title：Research in microbiology

authors： Feng Y,Cronan JE

更新日期：2014-07-01 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

authors： Morange M

更新日期：2014-06-01 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

authors： Cohn M

更新日期：2014-06-01 00:00:00

abstract：:Since Streptococcus mutans is the principal etiologic agent causing dental caries, by encompassing an array of unique virulence traits, emerging treatment strategies that specifically target the virulence of this pathogen may be promising as alternative approaches compared to conventional antibiotic therapy. In this p...

journal_title：Research in microbiology

authors： Gowrishankar S,Poornima B,Pandian SK

更新日期：2014-05-01 00:00:00