Evaluation of an alternative method for the enumeration and confirmation of Clostridium perfringens from treated and untreated sewages.

Abstract:

AIMS:Clostridium perfringens is recommended as a suitable indicator bacterium for human enteric viruses, Giardia cysts and Cryptosporidium oocysts in finished water and in the assessment and evaluation of water treatment. Several agars and confirmation procedures were evaluated in parallel with the Australian/New Zealand Standard (AS/NZ) Method for the enumeration of Cl. perfringens from treated and untreated sewage samples. METHODS AND RESULTS:The current AS/NZ method utilizes tryptose sulfite cycloserine agar (TSC), lactose gelatin medium (LG) and nitrate motility medium (NM) at an incubation temperature of 37 degrees C. Sixty treated and untreated sewage samples were used to evaluate TSC agar, membrane Cl. perfringens agar (mCP), Perfringens agar (OPSP) and Perfringens agar with 4-methylumbelliferyl phosphate (OPSP-MUP) for enumeration of Clostridium. An incubation temperature of 44 degrees C for 24 h was used for comparison. Confirmation procedures were also evaluated using 103 isolates and included LG and NM, ortho-nitrophenyl-beta-D-galactopyranoside (ONPG) with MUP (ONPG-MUP) and phosphatase reagent (PR). OPSP compared favourably with TSC agar. One false negative result was obtained from each of the LG/NM and ONPG-MUP procedures. No false results were obtained using the PR confirmation procedure. CONCLUSIONS:OPSP agar and PR were determined as suitable replacements for the AS/NZ Standard procedure with no interference from spreading organisms. SIGNIFICANCE AND IMPACT OF THE STUDY:This is a simple and rapid method for isolating and enumerating Cl. perfringens from sewage samples and confirmed results can be reported more quickly due to shorter analytical turnaround times.

journal_name

Lett Appl Microbiol

authors

Wohlsen T,Bayliss J,Gray B,Bates J,Katouli M

doi

10.1111/j.1472-765X.2006.01912.x

subject

Has Abstract

pub_date

2006-05-01 00:00:00

pages

438-44

issue

5

eissn

0266-8254

issn

1472-765X

pii

LAM1912

journal_volume

42

pub_type

杂志文章
  • Use of a dual priming oligonucleotide system to detect multiple sexually transmitted pathogens in clinical specimens.

    abstract:AIMS:To evaluate a new dual priming oligonucleotide (DPO)-based multiplex polymerase chain reaction (PCR) assay for detection of six sexually transmitted pathogens, including Chlamydia trachomatis, Neisseria gonorrhoeae, Mycoplasma genitalium, Mycoplasma hominis, Ureaplasma urealyticum and Trichomonas vaginalis. METHO...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2009.02618.x

    authors: Horii T,Ohtsuka H,Osaki M,Ohkuni H

    更新日期:2009-07-01 00:00:00

  • LC-MS/MS quantification of short-chain acyl-CoA's in Escherichia coli demonstrates versatile propionyl-CoA synthetase substrate specificity.

    abstract:AIMS:  This paper utilized quantitative LC-MS/MS to profile the short-chain acyl-CoA levels of several strains of Escherichia coli engineered for heterologous polyketide production. To further compare and potentially expand the levels of available acyl-CoA molecules, a propionyl-CoA synthetase gene from Ralstonia solan...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2011.03184.x

    authors: Armando JW,Boghigian BA,Pfeifer BA

    更新日期:2012-02-01 00:00:00

  • Surveillance of hepatitis A and E viruses contamination in shellfish in Thailand.

    abstract:AIMS:To survey for hepatitis A virus (HAV) and hepatitis E virus (HEV) contamination in edible bivalve shellfish. METHODS AND RESULTS:A total of 213 shellfish (52 oysters, 69 cockles and 92 mussels) collected from a culture farm and two retailed markets were investigated for HAV and HEV contamination by reverse transc...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2011.03152.x

    authors: Namsai A,Louisirirotchanakul S,Wongchinda N,Siripanyaphinyo U,Virulhakul P,Puthavathana P,Myint KS,Gannarong M,Ittapong R

    更新日期:2011-12-01 00:00:00

  • Development of an intergeneric conjugal transfer system for rimocidin-producing Streptomyces rimosus.

    abstract:AIMS:To develop an intergeneric conjugation system for rimocidin-producing Streptomyces rimosus. METHODS AND RESULTS:High efficiencies of conjugation [10(-2)-10(-3) transconjugants/recipient colony forming units (CFU)] were obtained when spores of S. rimosus were heat treated at 40 degrees C for 10 min prior to mixing...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2010.02835.x

    authors: Phornphisutthimas S,Sudtachat N,Bunyoo C,Chotewutmontri P,Panijpan B,Thamchaipenet A

    更新日期:2010-05-01 00:00:00

  • Colicin V can be produced by lactic acid bacteria.

    abstract::Colicin V is a small, proteinaceous bacterial toxin, produced by many strains of Escherichia coli and other members of the Enterobacteriaceae, that fits the definition of class II bacteriocins of Gram-positive bacteria. Export of colicin V is dependent on specific ABC (ATP-binding cassette) secretion proteins which re...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1365-2672.1999.00571.x

    authors: McCormick JK,Klaenhammer TR,Stiles ME

    更新日期:1999-07-01 00:00:00

  • Phenotypic, genotypic and pathogenic variation among streptomycetes implicated in common scab disease.

    abstract::This study examines the diversity of streptomycetes causing potato scab using phenotypic identification, 16S rRNA sequence, and pathogenicity measurements. Pathogenicity did not correlate well with taxonomic identification, nor with phylogenetic position. This result suggests that neither phenotypic nor 16S characteri...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.1998.t01-11-00449.x

    authors: Bramwell PA,Wiener P,Akkermans AD,Wellington EM

    更新日期:1998-11-01 00:00:00

  • Mechanical characterization of yeast cells: effects of growth conditions.

    abstract:UNLABELLED:Industrial biotechnology uses microbiological cells to produce a wide range of products. While the organisms in question are well understood regarding their genetic and molecular properties, less is known about their mechanical properties. Previous work has established a testing procedure for single Saccharo...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.12468

    authors: Overbeck A,Kampen I,Kwade A

    更新日期:2015-10-01 00:00:00

  • Comparison of fermentative capacities of industrial baking and wild-type yeasts of the species Saccharomyces cerevisiae in different sugar media.

    abstract:AIMS:To compare the fermentative capacity of wild and domesticated isolates of the genus Saccharomyces. METHODS AND RESULTS:The fermentative capacity of yeasts from a variety of wild and domesticated sources was tested in synthetic dough media that mimic major bread dough types. Domesticated yeast strains were found t...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.2001.00894.x

    authors: Bell PJ,Higgins VJ,Attfield PV

    更新日期:2001-04-01 00:00:00

  • Aggregation-promoting factor in pig intestinal Lactobacillus strains.

    abstract::Autoaggregation was frequently encountered among intestinal lactobacilli isolated from weaned pigs. The aggregation mechanism was shown to be mediated by the production of a proteinaceous aggregation-promoting factor in two strains of Lactobacillus reuteri. A 32 kDa aggregation-promoting protein was detected in these ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765x.1995.tb01079.x

    authors: Kmet V,Callegari ML,Bottazzi V,Morelli L

    更新日期:1995-12-01 00:00:00

  • Impact of antiseptics on Chlamydia trachomatis growth.

    abstract:UNLABELLED:Bacterial vaginosis is a frequent dysbiosis, where the normal lactobacillus-dominated flora is replaced by an anaerob/aerob polymicrobial flora. Bacterial vaginosis increases the risk of acquiring sexually transmitted infections (STI) including the most frequent Chlamydia trachomatis infections. Intravaginal...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.12625

    authors: Párducz L,Eszik I,Wagner G,Burián K,Endrész V,Virok DP

    更新日期:2016-10-01 00:00:00

  • Effect of Lactobacillus isolates on the adhesion of pathogens to chicken intestinal mucus in vitro.

    abstract:AIMS:The aims of this study were to investigate in vitro the effects of Lactobacillus isolates from a chicken on adhesion of pathogenic Salmonella and Escherichia coli to chicken intestinal mucus obtained from different intestinal regions. METHODS AND RESULTS:Bacteria were labelled by using methyl-1,2-[(3)H]-thymidine...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2006.01844.x

    authors: Ma YL,Guo T,Xu ZR,You P,Ma JF

    更新日期:2006-04-01 00:00:00

  • Specific molecular detection of Carnobacterium piscicola SF668 in cold smoked salmon.

    abstract:AIMS:To establish a rapid and reliable multiplex PCR (mPCR)-based method allowing specific identification of Carnobacterium piscicola SF668 during storage of cold smoked salmon (CSS). METHODS AND RESULTS:CSS was inoculated with C. piscicola SF668 and stored at 4 degrees C. Samples were withdrawn at regular time interv...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2005.01696.x

    authors: Pellé E,Dousset X,Prévost H,Drider D

    更新日期:2005-01-01 00:00:00

  • Candida keroseneae sp. nov., a novel contaminant of aviation kerosene.

    abstract:AIMS:To characterize and identify a novel contaminant of aviation fuel. METHODS AND RESULTS:Micro-organisms (yeasts and bacteria) were isolated from samples of aviation fuel. A yeast that proved to have been unrecorded previously was isolated from more than one fuel sample. This novel yeast proved to be a new species ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2010.02968.x

    authors: Buddie AG,Bridge PD,Kelley J,Ryan MJ

    更新日期:2011-01-01 00:00:00

  • Antagonists of bacitracin.

    abstract::Three groups of substances were identified which inhibit the bactericidal activity of bacitracin. Beside two divalent metals, Mg2+ and Ca2+, and a metabolite with chelating properties, citrate, the most pronounced effect was observed with pyrophosphate. Metals probably prevent access of bacitracin to the lipid carrier...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765x.1994.tb00916.x

    authors: Podlesek Z,Comino A

    更新日期:1994-08-01 00:00:00

  • Structural characterization of Tn916-like element in Streptococcus parauberis serotype II strains isolated from diseased Japanese flounder.

    abstract:AIMS:To screen for the existence and determine the structure of Tn916-like element in Streptococcus parauberis serotype II strains isolated from cultured Japanese flounder in western Japan. METHODS AND RESULTS:In this study, the structure of Tn916-like element and the flanking regions were characterized by polymerase ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2009.02609.x

    authors: Meng F,Kanai K,Yoshikoshi K

    更新日期:2009-06-01 00:00:00

  • Modelling the growth and ethanol production of Brettanomyces bruxellensis at different glucose concentrations.

    abstract:AIM:To study the effect of glucose concentrations on the growth by Brettanomyces bruxellensis yeast strain in batch experiments and develop a mathematical model for kinetic behaviour analysis of yeast growing in batch culture. METHODS AND RESULTS:A Matlab algorithm was developed for the estimation of model parameters....

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2011.03081.x

    authors: Aguilar-Uscanga MG,Garcia-Alvarado Y,Gomez-Rodriguez J,Phister T,Delia ML,Strehaiano P

    更新日期:2011-08-01 00:00:00

  • Pulsed electric field inactivation of diarrhoeagenic Bacillus cereus through irreversible electroporation.

    abstract::The physical effects of high-intensity pulsed electric fields (PEF) on the inactivation of diarrhoeagenic Bacillus cereus cells suspended in 0.1% peptone water were examined by transmission electron microscopy (TEM). The levels of PEF-induced microbial cell death were determined by enumeration on tryptone soy yeast ex...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1365-2672.2000.00772.x

    authors: Rowan NJ,MacGregor SJ,Anderson JG,Fouracre RA,Farish O

    更新日期:2000-08-01 00:00:00

  • Isolation of Actinomyces viscosus strain GA: characteristics of its cellular biological retardant(s).

    abstract::Actinomyces viscosus strain GA produces an exocellular biological retardant(s) that prevents certain vegetable plants from becoming overgrown. The biological retardant(s) was assayed using the etiolated wheat coleoptile assay, and fractionation of culture supernatant fluid resulted in a partial purification of the ret...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.1997.00178.x

    authors: Bryant FO,Cutler HG

    更新日期:1997-08-01 00:00:00

  • Reduction of Bacillus cereus spores in sikhye, a traditional Korean rice beverage, by modified tyndallization processes with and without carbon dioxide injection.

    abstract:AIMS: The objective of this study was to inactivate Bacillus cereus spores in sikhye using a modified tyndallization process involving injection with carbon dioxide (CO₂). METHODS AND RESULTS:Heat tolerance of B. cereus spores in tryptic soy broth and sikhye was evaluated. The D(95°C) values of the B. cereus spores we...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2012.03278.x

    authors: Kim H,Kim H,Bang J,Kim Y,Beuchat LR,Ryu JH

    更新日期:2012-09-01 00:00:00

  • Nanoporous anodic alumina reduces Staphylococcus biofilm formation.

    abstract::Staphylococcus epidermidis and Staphylococcus aureus, two bacterial strains commonly associated with biofilm-related medical infections and food poisoning, can rapidly colonize biotic and abiotic surfaces. The present study investigates the ability of anodic alumina surfaces with nanoporous surface topography to minim...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.13201

    authors: Feng G,Cheng Y,Worobo RW,Borca-Tasciuc DA,Moraru CI

    更新日期:2019-10-01 00:00:00

  • Microbial degradation and detoxification of high molecular weight polycyclic aromatic hydrocarbons by Stenotrophomonas maltophilia strain VUN 10,003.

    abstract::The ability of Stenotrophomonas maltophilia strain VUN 10,003 to degrade and detoxify high molecular weight polycyclic aromatic hydrocarbons (PAHs) was evaluated in a basal liquid medium. Using high cell density inocula of strain VUN 10,003, the concentration of pyrene, fluoranthene, benz[a]anthracene, benzo[a]pyrene,...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.2000.00733.x

    authors: Juhasz AL,Stanley GA,Britz ML

    更新日期:2000-05-01 00:00:00

  • Virulence profile of Escherichia coli O157 strains isolated from surface water in cattle breeding areas.

    abstract::Shiga toxin-producing Escherichia coli (STEC) O157:H7 is a worldwide concern. Cattle are their main reservoir and may contaminate watercourses through manure. We characterized a collection of 38 STEC O157:H7 strains isolated from surface water in feedlots areas (puddles inside pens formed after the rainfall or by spil...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.12873

    authors: Tanaro JD,Pianciola LA,D'Astek BA,Piaggio MC,Mazzeo ML,Zolezzi G,Rivas M

    更新日期:2018-06-01 00:00:00

  • Adhesion capability of first two domains at N terminus of NP_785232 protein and their interaction with a UV-absorbing component from human mucus.

    abstract:AIMS:This work aims to investigate the binding capability of certain domains at N terminus of the protein NP_785232 of Lactobacillus plantarum to Caco-2 cells and to test the usage of affinity chromatography to isolate the human mucus component that interacts with them. METHODS AND RESULTS:Recombinant proteins contain...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2010.02911.x

    authors: Du L,Liu F,Ju X,Huo G

    更新日期:2010-10-01 00:00:00

  • Tetracycline-resistance genes in gram-negative isolates from estuarine waters.

    abstract:AIMS:To investigate the diversity and dissemination of tetracycline resistance genes in isolates from estuarine waters. METHODS AND RESULTS:Forty-two out of 164 multi-resistant isolates previously obtained were resistant or less-susceptible to tetracycline, as evaluated by the disc diffusion method. Minimal inhibitory...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2008.02452.x

    authors: Henriques IS,Fonseca F,Alves A,Saavedra MJ,Correia A

    更新日期:2008-12-01 00:00:00

  • Effect of disinfection upon dissolved organic carbon (DOC) in wastewater: bacterial bioassays.

    abstract::Quantitative and qualitative changes in organic matter content of wastewater effluents attributable to chlorination and ozonation have been analysed using bioassays as well as organic carbon direct measures. Bioassays were carried out using the bacterial populations of wastewater and two Escherichia coli strains as te...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1365-2672.2000.00793.x

    authors: Arana I,Santorum P,Muela A,Barcina I

    更新日期:2000-08-01 00:00:00

  • Isolation, partial purification and characterization of a bacteriocin produced by a newly isolated Bacillus subtilis strain.

    abstract::A wild type micro-organism producing antibacterial substances has been isolated from a Chinese fermented soybean seasoning and identified as Bacillus subtilis. A crude antibacterial preparation (CABP) was obtained by ammonium sulphate precipitation. Isoelectric focusing assay revealed at least four antimicrobial compo...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1365-2672.1999.00545.x

    authors: Zheng G,Slavik MF

    更新日期:1999-05-01 00:00:00

  • Rapid construction of Campylobacter jejuni deletion mutants.

    abstract:AIMS:To develop a novel method for rapid construction of Campylobacter jejuni deletion mutants. METHODS AND RESULTS:We used overlapping extension PCR protocol to amplify a target sequence region of Camp. jejuni genomic DNA in which an internal fragment, Cj0618 coding sequence, was replaced by a chloramphenicol resista...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2007.02232.x

    authors: Hansen CR,Khatiwara A,Ziprin R,Kwon YM

    更新日期:2007-12-01 00:00:00

  • New erythromycin derivatives enhance β-lactam antibiotics against methicillin-resistant Staphylococcus aureus.

    abstract:UNLABELLED:Newly synthesized erythromycin derivatives were screened for synergy with oxacillin and other β-lactam antibiotics against methicillin-resistant Staphylococcus aureus (MRSA). MRSA ATCC43300 and some clinically isolated MRSA were used. Several erythromycin derivatives were found to possess high synergism with...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.12378

    authors: Li Z,He M,Dong X,Lin H,Ge H,Shen S,Li J,Ye RD,Chen D

    更新日期:2015-04-01 00:00:00

  • Determination of 2,3-butanediol in high and low acetoin producers of Saccharomyces cerevisiae wine yeasts by automated multiple development (AMD).

    abstract::High performance thin layer chromatography with automated multiple development was used to determine 2,3-butanediol levels in wine produced by high and low acetoin-forming strains of Saccharomyces cerevisiae. An inverse correlation between acetoin and 2,3-butanediol content was found suggesting a leaky mutation in ace...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765x.1996.tb01165.x

    authors: Romano P,Suzzi G,Brandolini V,Menziani E,Domizio P

    更新日期:1996-04-01 00:00:00

  • Heat shock response enhances acid tolerance of Escherichia coli O157:H7.

    abstract::Escherichia coli O157:H7 (O157) has unusual acid tolerance. The influence of heat shock on acid tolerance of O157 was studied. Seven strains of O157 and E. coli K-12 were tested for their ability to survive in minimum glucose medium (pH 2.5) at 37 degrees C. The survival of heat-shocked (10 min at 48 degrees C) cells ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.1998.00264.x

    authors: Wang G,Doyle MP

    更新日期:1998-01-01 00:00:00