Antibacterial effects of grape extracts on Helicobacter pylori.

abstract：:Prodigiosin (PG), a red linear tripyrrole pigment normally secreted by Serratia marcescens, has received attention for its reported immunosuppressive, antimicrobial, and anticancer properties. Although several genes have been shown to be important for prodigiosin synthesis, information on the regulatory mechanisms beh...

journal_title：Applied and environmental microbiology

authors： Pan X,Tang M,You J,Liu F,Sun C,Osire T,Fu W,Yi G,Yang T,Yang ST,Rao Z

更新日期：2021-01-04 00:00:00

abstract：:Municipal wastewater includes human waste that contains both commensal and pathogenic enteric microorganisms, and this collective community microbiome can be monitored for community diseases. In a previous study, we assessed the salmonellosis disease burden using municipal wastewater from Honolulu, Hawaii, which was m...

journal_title：Applied and environmental microbiology

authors： Diemert S,Yan T

更新日期：2019-05-02 00:00:00

abstract：:A negative enrichment procedure was developed which was capable of isolating Legionella pneumophila directly from seeded air-conditioning cooling tower water onto laboratory media. This procedure was based on an 8-h incubation under conditions that were bactericidal to the indigenous water microflora but merely bacter...

journal_title：Applied and environmental microbiology

authors： Thorpe TC,Miller RD

更新日期：1980-10-01 00:00:00

abstract：:Campylobacter jejuni is a pathogenic, microaerophilic, gram-negative, mesophilic bacterium. Three strains isolated from humans with enteric campylobacteriosis were able to survive at high population levels (10(7) cells ml-1) as viable-but-nonculturable (VBNC) forms in microcosm water. The VBNC forms of the three C. je...

journal_title：Applied and environmental microbiology

authors： Tholozan JL,Cappelier JM,Tissier JP,Delattre G,Federighi M

更新日期：1999-03-01 00:00:00

abstract：:In Europe the use of the growth promoter avoparcin is considered to have selected for vancomycin-resistant enterococci (VRE). Sweden ceased using avoparcin in 1986, and only occasional cases of VRE from hospitals have been reported since 1995. Within the framework of a European study, samples from urban raw sewage, tr...

journal_title：Applied and environmental microbiology

authors： Iversen A,Kühn I,Franklin A,Möllby R

更新日期：2002-06-01 00:00:00

abstract：:Denitrifying microbial communities and denitrification in salt marsh sediments may be affected by many factors, including environmental conditions, nutrient availability, and levels of pollutants. The objective of this study was to examine how microbial community composition and denitrification enzyme activities (DEA)...

journal_title：Applied and environmental microbiology

authors： Cao Y,Green PG,Holden PA

更新日期：2008-12-01 00:00:00

abstract：:Campylobacter jejuni is a recognized and common gastrointestinal pathogen in most parts of the world. Human infections are often food borne, and the bacterium is frequent among poultry and other food animals. However, much less is known about the epidemiology of C. jejuni in the environment and what mechanisms the bac...

journal_title：Applied and environmental microbiology

authors： Axelsson-Olsson D,Svensson L,Olofsson J,Salomon P,Waldenström J,Ellström P,Olsen B

更新日期：2010-07-01 00:00:00

abstract：:A mixed culture of nitrate-reducing bacteria degraded o-cresol in the presence of toulene as a primary growth substrate. No degradation of o-cresol was observed in the absence of toluene or when the culture grew on p-cresol and 2,4-dimethylphenol. In batch cultures, the degradation of o-cresol started after toluene wa...

journal_title：Applied and environmental microbiology

authors： Flyvbjerg J,Jørgensen C,Arvin E,Jensen BK,Olsen SK

更新日期：1993-07-01 00:00:00

abstract：:Chromohalobacter salexigens DSM 3043 can grow on N,N-dimethylglycine (DMG) as the sole C, N, and energy source and utilize sarcosine as the sole N source under aerobic conditions. However, little is known about the genes and enzymes involved in the conversion of DMG to sarcosine in this strain. In the present study, g...

journal_title：Applied and environmental microbiology

authors： Yang T,Shao YH,Guo LZ,Meng XL,Yu H,Lu WD

更新日期：2020-08-18 00:00:00

abstract：:A toxic substance contained in the blue-green alga Microcystis aeruginosa was purified and partially characterized. Toxic algal cells were collected from a highly eutrophic lake in Japan, and the toxin was purified by homogenization, ultrafiltration, gel filtration, and ion-exchange chromatography. The final preparati...

journal_title：Applied and environmental microbiology

authors： Watanabe MF,Oishi S

更新日期：1982-04-01 00:00:00

abstract：:The membrane proteins IIC and IID of the mannose phosphotransferase system (Man-PTS) together form a membrane-located complex that serves as a receptor for several different bacteriocins, including the pediocin-like class IIa bacteriocins and the class IIc bacteriocin lactococcin A. Bacterial strains sensitive to clas...

journal_title：Applied and environmental microbiology

authors： Kjos M,Nes IF,Diep DB

更新日期：2011-05-01 00:00:00

abstract：:Treatment of secondary effluents with hydrogen peroxide (10 mg/liter)-ascorbic acid (10 mg/liter)-Cu2+ (0.5 mg/liter) for 60 min resulted in around 99% reduction of the initial plate count. Hydrogen peroxide could be replaced by other peroxygen compounds; ascorbic acid could be replaced by other reducing agents, of wh...

journal_title：Applied and environmental microbiology

authors： Ragab-Depre NJ

更新日期：1982-09-01 00:00:00

abstract：:The Tinto River (Huelva, southwestern Spain) is an extreme environment with a rather constant acidic pH along the entire river and a high concentration of heavy metals. The extreme conditions of the Tinto ecosystem are generated by the metabolic activity of chemolithotrophic microorganisms thriving in the rich complex...

journal_title：Applied and environmental microbiology

authors： González-Toril E,Llobet-Brossa E,Casamayor EO,Amann R,Amils R

更新日期：2003-08-01 00:00:00

abstract：:Under anoxic conditions, most methoxylated mononuclear aromatic compounds are degraded by bacteria, with catechol being formed as an important intermediate. On the basis of our experiments with the sulfate-reducing bacterium Desulfobacterium sp. strain Cat2, we describe for the first time the enzymatic activities invo...

journal_title：Applied and environmental microbiology

authors： Gorny N,Schink B

更新日期：1994-09-01 00:00:00

abstract：:The cholera toxin genes of Vibrio cholerae are encoded by CTXΦ, a lysogenic bacteriophage. Infection with this phage plays a determinant role in toxigenicity conversion and the emergence of new clones of pathogenic V. cholerae. Multiple phage alleles, defined by sequence types of the repressor gene rstR, have been fou...

journal_title：Applied and environmental microbiology

authors： Wang H,Pang B,Xiong L,Wang D,Wang X,Zhang L,Kan B

更新日期：2015-10-01 00:00:00

abstract：:The noncanonical alcohol dehydrogenase AlkJ is encoded on the alkane-metabolizing alk operon of the mesophilic bacterium Pseudomonas putida GPo1. To gain insight into the enzymology of AlkJ, we have produced the recombinant protein in Escherichia coli and purified it to homogeneity using His6 tag affinity and size exc...

journal_title：Applied and environmental microbiology

authors： Kirmair L,Skerra A

更新日期：2014-04-01 00:00:00

abstract：:Three of 36 raw milk isolates of Yersinia enterocolitica produced enterotoxin in milk at 25 degrees C, but not at 4 degrees C. No strain tested could survive pasteurization. ...

journal_title：Applied and environmental microbiology

authors： Francis DW,Spaulding PL,Lovett J

更新日期：1980-07-01 00:00:00

abstract：:The growth characteristics and acetate production of several Escherichia coli strains were compared by using shake flasks, batch fermentations, and glucose-feedback-controlled fed-batch fermentations to assess the potential of each strain to grow at high cell densities. Of the E. coli strains tested, including JM105, ...

journal_title：Applied and environmental microbiology

authors： Luli GW,Strohl WR

更新日期：1990-04-01 00:00:00

abstract：:The fermentative metabolism of glucose was redirected to succinate as the primary product without mutating any genes encoding the native mixed-acid fermentation pathway or redox reactions. Two changes in peripheral pathways were together found to increase succinate yield fivefold: (i) increased expression of phosphoen...

journal_title：Applied and environmental microbiology

authors： Zhang X,Jantama K,Shanmugam KT,Ingram LO

更新日期：2009-12-01 00:00:00

abstract：:Pyrobaculum islandicum uses iron, thiosulfate, and elemental sulfur for anaerobic respiration, while Pyrobaculum aerophilum uses iron and nitrate; however, the constraints on these processes and their physiological mechanisms for iron and sulfur reduction are not well understood. Growth rates on sulfur compounds are h...

journal_title：Applied and environmental microbiology

authors： Feinberg LF,Srikanth R,Vachet RW,Holden JF

更新日期：2008-01-01 00:00:00

abstract：:An efficient insertion mutagenesis strategy for bacterial genomes based on the phage Mu DNA transposition reaction was developed. Incubation of MuA transposase protein with artificial mini-Mu transposon DNA in the absence of divalent cations in vitro resulted in stable but inactive Mu DNA transposition complexes, or t...

journal_title：Applied and environmental microbiology

authors： Lamberg A,Nieminen S,Qiao M,Savilahti H

更新日期：2002-02-01 00:00:00

abstract：:pAM beta 1, a 26.5-kilobase plasmid originally isolated from Streptococcus faecalis, was conjugally transferred from Streptococcus lactis to Bacillus subtilis. No conjugal transfer of pAM beta 1 from B. subtilis to S. lactis was observed. In addition, pAM beta 1 which had been reintroduced in S. lactis after cycling t...

journal_title：Applied and environmental microbiology

authors： van der Lelie D,Venema G

更新日期：1987-10-01 00:00:00

abstract：:Two genes involved in aflatoxin B1 (AFB1) biosynthesis in Aspergillus parasiticus, nor-1 and ver-1, were localized to a 35-kb region on one A. parasiticus chromosome and to the genomic DNA fragment carried on a single cosmid, NorA. A physical and transcriptional map of the 35-kb genomic DNA insert in cosmid NorA was p...

journal_title：Applied and environmental microbiology

authors： Trail F,Mahanti N,Rarick M,Mehigh R,Liang SH,Zhou R,Linz JE

更新日期：1995-07-01 00:00:00

abstract：:Sphingomonas sp. strain TTNP3 degrades 4(3',5'-dimethyl-3'-heptyl)-phenol and unidentified metabolites that were described previously. The chromatographic analyses of the synthesized reference compound and the metabolites led to their identification as 2(3',5'-dimethyl-3'-heptyl)-1,4-benzenediol. This finding indicate...

journal_title：Applied and environmental microbiology

authors： Corvini PF,Meesters RJ,Schäffer A,Schröder HF,Vinken R,Hollender J

更新日期：2004-11-01 00:00:00

abstract：:Population analyses in water samples obtained from the chemocline of crenogenic, meromictic Lake Cadagno, Switzerland, in October for the years 1994 to 2003 were studied using in situ hybridization with specific probes. During this 10-year period, large shifts in abundance between purple and green sulfur bacteria and ...

journal_title：Applied and environmental microbiology

authors： Tonolla M,Peduzzi R,Hahn D

更新日期：2005-07-01 00:00:00

abstract：:The symbiotic association between the roseobacter Silicibacter sp. strain TM1040 and the dinoflagellate Pfiesteria piscicida involves bacterial chemotaxis to dinoflagellate-produced dimethylsulfoniopropionate (DMSP), DMSP demethylation, and ultimately a biofilm on the surface of the host. Biofilm formation is coincide...

journal_title：Applied and environmental microbiology

authors： Geng H,Bruhn JB,Nielsen KF,Gram L,Belas R

更新日期：2008-03-01 00:00:00

abstract：:Forty-nine typical and atypical enteropathogenic Escherichia coli (EPEC) strains belonging to different serotypes and isolated from humans, pets (cats and dogs), farm animals (bovines, sheep, and rabbits), and wild animals (monkeys) were investigated for virulence markers and clonal similarity by pulsed-field gel elec...

journal_title：Applied and environmental microbiology

authors： Moura RA,Sircili MP,Leomil L,Matté MH,Trabulsi LR,Elias WP,Irino K,Pestana de Castro AF

更新日期：2009-12-01 00:00:00

abstract：:Fusarium fungal contaminants and related mycotoxins were investigated in eight maize feed samples submitted to the Iowa State University Veterinary Diagnostic Laboratory. Fusarium moniliforme, F. proliferatum, and F. subglutinans were isolated from seven, eight, and five samples, respectively. These strains belonged t...

journal_title：Applied and environmental microbiology

authors： Munkvold G,Stahr HM,Logrieco A,Moretti A,Ritieni A

更新日期：1998-10-01 00:00:00

abstract：:A resting culture of Rhizopus arrhizus (ATCC 11145) transformed verrucarin A into 16-hydroxyverrucarin A, whereas R. arrhizus transformed verrucarin B into a mixture of 16-hydroxyverrucarin B and 3'-hydroxyverrucarin A. Relative to verrucarins A and B, the 16-hydroxy derivatives showed marked increases in activity, as...

journal_title：Applied and environmental microbiology

authors： Pavanasasivam G,Jarvis BB

更新日期：1983-08-01 00:00:00

abstract：:The continuous addition of toluene as a solute of treated ballast water from oil tankers into a well-defined estuary facilitated the study of the dynamics of dissolved hydrocarbon metabolism in seawater. Most rates of toluene oxidation were in the range of 1 to 30 pg/liter per h at 0.5 mug of toluene per liter. Near t...

journal_title：Applied and environmental microbiology

authors： Button DK,Robertson BR,Craig KS

更新日期：1981-10-01 00:00:00