Development of a real-time PCR assay with an internal amplification control for the screening of Shiga toxin-producing Escherichia coli in foods.

Abstract:

AIMS:To develop and evaluate a real-time PCR assay incorporating an internal amplification control (IAC) suitable for the screening of Shiga toxin (Stx)-producing Escherichia coli (STEC) in foods. METHODS AND RESULTS:A competitive IAC was constructed and included in an stx-specific real-time PCR assay. Coupled to 18-h enrichment and automated DNA extraction, the assay could reliably detect the presence of STEC in minced meats inoculated at 10 CFU per 25 g. Its performance was evaluated on 415 minced beef and 112 raw milk cheese samples and compared with that of a PCR-ELISA method. Fifty-three minced meats and 31 cheeses were found stx-positive, giving 98.3% and 93.75% concordance, respectively, with the PCR-ELISA reference method. CONCLUSIONS:A highly sensitive stx-specific real-time PCR method including an IAC was developed, facilitating monitoring of false-negative results due to PCR inhibitors. SIGNIFICANCE AND IMPACT OF THE STUDY:Combined with automated DNA extraction, the stx-IAC real-time PCR assay represents a suitable method for rapid screening of STEC in foods.

journal_name

Lett Appl Microbiol

authors

Auvray F,Lecureuil C,Dilasser F,Taché J,Derzelle S

doi

10.1111/j.1472-765X.2009.02561.x

subject

Has Abstract

pub_date

2009-05-01 00:00:00

pages

554-9

issue

5

eissn

0266-8254

issn

1472-765X

pii

LAM2561

journal_volume

48

pub_type

杂志文章
  • Isolation and genome analysis of a lytic Pasteurella multocida Bacteriophage PMP-GAD-IND.

    abstract::Currently used alum precipitated and oil adjuvant vaccines against HS caused by Pasteurella multocida B:2, have side effects and short-lived immunity, leading to regular catastrophic outbreaks in bovines in Asian subcontinent. The need for the development of an improved vaccine with longer immunity and the ability to ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.13010

    authors: Qureshi S,Saxena HM,Imam N,Kashoo Z,Sharief Banday M,Alam A,Malik MZ,Ishrat R,Bhat B

    更新日期:2018-09-01 00:00:00

  • Clinically applicable irreversible electroporation for eradication of micro-organisms.

    abstract::Irreversible electroporation (IRE) damages cell membranes and is used in medicine for nonthermal ablation of malignant tumours. Our aim was to evaluate the antimicrobial effect of IRE. The pathogenic micro-organisms, Staphylococcus aureus, Streptococcus pyogenes, Escherichia coli, Pseudomonas aeruginosa and Candida al...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.12996

    authors: Korem M,Goldberg NS,Cahan A,Cohen MJ,Nissenbaum I,Moses AE

    更新日期:2018-07-01 00:00:00

  • Establishing a campylobacter-free pig population through a top-down approach.

    abstract::Fattening pigs are often infected with campylobacter. To eliminate campylobacter from the pig population, a top-down approach, involving the breeding and reproduction farms, seems appropriate. In order to investigate the effectiveness of a top-down approach, sows' faeces from the following farms were analysed for the ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.2000.00750.x

    authors: Weijtens MJ,Urlings HA,Van der Plas J

    更新日期:2000-06-01 00:00:00

  • Microbial population dynamics in the faeces of wood-eating loricariid catfishes.

    abstract:UNLABELLED:Catfishes of the genus Panaque are known for their ability to feed on wood and hence to process cellulose fibres in their digestive systems. The paper industry uses cellulose fibres and thus has an interest in exploiting this property biomimetically: it could be employed as a pretreatment to lessen the energ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.12061

    authors: Di Maiuta N,Schwarzentruber P,Schenker M,Schoelkopf J

    更新日期:2013-06-01 00:00:00

  • Isolation and characterization of lactic acid bacteria from dochi (fermented black beans), a traditional fermented food in Taiwan.

    abstract:AIMS:To isolate, characterize and identify lactic acid bacteria (LAB) in dochi (fermented black beans), a traditional fermented food in Taiwan. METHODS AND RESULTS:A total of 30 samples were collected from three different dochi producers and analysed after different periods of storage. Fifty-two cultures of LAB were i...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2006.01922.x

    authors: Chen YS,Yanagida F,Hsu JS

    更新日期:2006-08-01 00:00:00

  • The effect of colony age on PCR fingerprinting.

    abstract::The pattern of DNA fragments produced by the polymerase chain reaction using arbitrary primers is strongly influenced by the age of the colonies sampled. We show that the number, clarity and reproducibility of the bands produced is optimal when very young colonies are sampled. ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765x.1993.tb01467.x

    authors: Coutinho HL,Handley BA,Kay HE,Stevenson L,Beringer JE

    更新日期:1993-12-01 00:00:00

  • Development of a method for direct extraction of viral RNA from bivalve molluscs.

    abstract::The detection of foodborne viruses in bivalve molluscs is a challenging procedure in relation to low virus concentration and to the presence of significant RT-PCR inhibitors. The aim of this study was the development of an efficient direct extraction method for foodborne viral RNA from bivalve molluscs. Using Mengovir...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.13065

    authors: Quang Le H,Suffredini E,Tien Pham D,Kim To A,De Medici D

    更新日期:2018-11-01 00:00:00

  • Sensitivity of nisin-resistant Listeria monocytogenes to heat and the synergistic action of heat and nisin.

    abstract::Nisin, a bacteriocin produced by some strains of Lactococcus lactis, acts against foodborne pathogen Listeria monocytogenes. A single exposure of cells to nisin can generate nisin-resistant (Nisr) mutants, which may compromise the use of nisin in the food industry. The objective of this research was to compare the hea...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.2000.00708.x

    authors: Modi KD,Chikindas ML,Montville TJ

    更新日期:2000-03-01 00:00:00

  • Molecular characterization of Vibrio cholerae isolates from Iran 2012 and 2013 outbreaks.

    abstract:UNLABELLED:The aim of this study was to assess the genetic diversity of Vibrio cholerae isolated from 2012 and 2013 outbreaks in Iran, with regard to their virulence properties. A total of 20 V. cholerae strains were collected from Sistan-Baluchestan province of Iran during 2012 and 2013 outbreaks. Hybridization assays...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.12571

    authors: Bakhshi B

    更新日期:2016-06-01 00:00:00

  • Comparison of bacteriostatic and bactericidal activity of 13 essential oils against strains with varying sensitivity to antibiotics.

    abstract:AIMS:To compare the bacteriostatic and bactericidal activity of 13 chemotyped essential oils (EO) on 65 bacteria with varying sensitivity to antibiotics. METHODS AND RESULTS:Fifty-five bacterial strains were tested with two methods used for evaluation of antimicrobial activity (CLSI recommendations): the agar dilution...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2008.02406.x

    authors: Mayaud L,Carricajo A,Zhiri A,Aubert G

    更新日期:2008-09-01 00:00:00

  • Probiotics and COVID-19: is there any link?

    abstract::Understanding mechanisms of the novel SARS-CoV2 infection and progression can provide potential novel targets for prevention and/or treatment. This could be achieved via the inhibition of viral entry and/or replication, or by suppression of the immunologic response that is provoked by the infection (known as the cytok...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章,评审

    doi:10.1111/lam.13334

    authors: Akour A

    更新日期:2020-09-01 00:00:00

  • Influence of interactions between temperature, ferric ammonium citrate and glycine betaine on the growth of Listeria monocytogenes in a defined medium.

    abstract:AIMS:To investigate interactions, if any, between temperature, ferric ammonium citrate and glycine betaine on the growth of Listeria monocytogenes in modified Pine's medium (Pine et al. 1989). METHODS AND RESULTS:Modified Pine's medium containing 0, 0.044, 0.088 or 0.176 g l(-1) ferric ammonium citrate, and 0 or 1 mM ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.2002.01237.x

    authors: Dykes GA,Dworaczek M

    更新日期:2002-01-01 00:00:00

  • Hydrolytic properties of crude alpha-L-rhamnosidases produced by several wild strains of mesophilic fungi.

    abstract:AIMS:Observation of the dependence of alpha-L-rhamnosidase activity on pH and temperature and the capability to hydrolyse concentrated naringin solutions and hesperidin suspensions of enzyme complexes produced by several fungi. METHODS AND RESULTS:The enzymes were produced by several wild strains of mesophilic fungi g...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.2002.01115.x

    authors: Scaroni E,Cuevas C,Carrillo L,Ellenrieder G

    更新日期:2002-01-01 00:00:00

  • Staphylococcus aureus SH1000 and 8325-4: comparative genome sequences of key laboratory strains in staphylococcal research.

    abstract:AIMS:To provide comparative genome sequence data for two related model strains of Staphylococcus aureus (SH1000 and 8325-4) that are used extensively in laboratory research. METHODS AND RESULTS:Comparative genome sequencing was used to identify genetic differences between Staph. aureus SH1000 and the fully genome-sequ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2010.02885.x

    authors: O'Neill AJ

    更新日期:2010-09-01 00:00:00

  • An investigation into the ecological niches and seasonal nature of Clostridium estertheticum and Clostridium gasigenes in the Irish beef farm environment.

    abstract::Blown pack spoilage (BPS) of vacuum packaged beef is caused by psychrotolerant and psychrophilic Clostridium species, primarily Clostridium estertheticum and Clostridium gasigenes. The aim of this study was to investigate the environmental niches and impact of season on these BPS Clostridium spp. on Irish beef farms. ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.13344

    authors: Esteves E,Whyte P,Gupta TB,Bolton DJ

    更新日期:2020-12-01 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

  • Effect of penicillin G on the electroporation of Rhodococcus rhodochrous CF222.

    abstract::Suitable conditions for the introduction of bacteriophage DNA into cells of Rhodococcus rhodochrous CF222 by electroporation were established, and penicillin G was found to enhance the transfection frequency. When conditions optimal for the parental strain were applied to its colony-morphological mutants, different tr...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765x.1996.tb01110.x

    authors: Sunairi M,Iwabuchi N,Murakami K,Watanabe F,Ogawa Y,Murooka H,Nakajima M

    更新日期:1996-01-01 00:00:00

  • Evidence on inhibition of Listeria monocytogenes by divercin V41 action.

    abstract:AIMS:The aim of this study was to investigate the role of divercin V41 in inhibition and prevention of Listeria monocytogenes. METHODS AND RESULTS:Carnobacterium divergens V41 deficient in bacteriocin production was isolated and characterized by enzyme-liked immunosorbent assay, multiplex polymerase chain reaction and...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.2003.01310.x

    authors: Richard C,Brillet A,Pilet MF,Prévost H,Drider D

    更新日期:2003-01-01 00:00:00

  • High-level secretion of human bikunin from recombinant Pichia pastoris.

    abstract:UNLABELLED:Human bikunin is a glycoprotein that exhibits trypsin inhibitory activity against serine proteases, and is effective in clinic. However, limited productivity and high price of human bikunin retard its further application. In this study, a high-yield, low-cost process of recombinant human bikunin (rh-bikunin)...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.12470

    authors: Yao M,Zhang J,Wang X

    更新日期:2015-10-01 00:00:00

  • Extracellular mycosynthesis of gold nanoparticles using Trichoderma hamatum: optimization, characterization and antimicrobial activity.

    abstract::Synthesis of gold nanoparticles (AuNPs) has become a needed domain of applied science. Biological method for synthesis of AuNPs by Trichoderma hamatum SU136 aqueous mycelial extract was achieved. The culture filtrate of the fungus was exposed to three different concentrations of gold chloride. The culture filtrate of ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.13055

    authors: Abdel-Kareem MM,Zohri AA

    更新日期:2018-11-01 00:00:00

  • Effect of copper hydroxide sprays for citrus canker control on wild-type Escherichia coli.

    abstract:AIMS:  To show that application of copper hydroxide citrus sprays mixed with field source water (possibly contaminated) will not support Escherichia coli on plant surfaces. Environmental stresses of transient phyllosphere bacteria and presence of copper will eradicate these bacteria before harvest. METHODS AND RESULTS...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2011.03179.x

    authors: Narciso JA,Ference CM,Ritenour MA,Widmer WW

    更新日期:2012-02-01 00:00:00

  • Beta-D-galactosidase activity of viable, non-culturable coliform bacteria in marine waters.

    abstract::The beta-D-galactosidase activity of viable but non-culturable (vnc) Escherichia coli cells in seawater was investigated using a rapid fluorimetric enzyme assay. Results from microcosm studies showed that loss of culturability did not necessarily result in loss of the ability to produce the galactosidase enzyme. Even ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765x.1995.tb01016.x

    authors: Davies CM,Apte SC,Peterson SM

    更新日期:1995-08-01 00:00:00

  • Isolation and characteristics of lactic acid bacteria from koshu vineyards in Japan.

    abstract:AIMS:To isolate, characterize and identify lactic acid bacteria (LAB) in the vineyards where koshu grapes, a primary wine grape cultivar in Japan, are grown. METHODS AND RESULTS:Sixty samples, including leaves, undamaged grape berries and soil under damaged berries, were collected at four koshu vineyards in Yamanashi ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2008.02398.x

    authors: Yanagida F,Srionnual S,Chen YS

    更新日期:2008-08-01 00:00:00

  • Bidirectional transformation of aromatic aldehydes by Desulfovibrio desulfuricans under nitrate-dissimilating conditions.

    abstract::Desulfovibrio desulfuricans ATCC 27774 was screened for reactivity against aromatic compounds during lactate-dependent, nitrate-dissimilating growth. Only aromatic aldehydes (benzaldehyde, 2-hydroxybenzaldehyde, 3-hydroxybenzaldehyde, 4-hydroxybenzaldehyde, vanillin, iso-vanillin and o-vanillin) were reactive and, wit...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765x.1996.tb01122.x

    authors: Parekh M,Drake HL,Daniel SL

    更新日期:1996-02-01 00:00:00

  • Technical advance in fungal biotechnology: development of a miniaturized culture method and an automated high-throughput screening.

    abstract:AIMS:The goal of the study was to develop a reliable, reproducible and rapid method of culture in order to screen a large number of fungal transformants. METHODS AND RESULTS:The method is based upon miniaturized cell cultures and automated expression screening in microwell plates. For the method development, 50 recomb...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2009.02655.x

    authors: Alberto F,Navarro D,de Vries RP,Asther M,Record E

    更新日期:2009-08-01 00:00:00

  • Inactivation of Salmonella enterica serovar enteritidis in shell eggs by sequential application of heat and ozone.

    abstract:AIMS:To assess the contribution of ozone to lethality of Salmonella enterica serovar Enteritidis in experimentally inoculated whole shell eggs that are sequentially treated with heat and gaseous ozone in pilot-scale equipment. METHODS AND RESULTS:Whole shell eggs were inoculated with small populations of Salmonella En...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2008.02367.x

    authors: Perry JJ,Rodriguez-Romo LA,Yousef AE

    更新日期:2008-06-01 00:00:00

  • Divercin V41 from gene characterization to food applications: 1998-2008, a decade of solved and unsolved questions.

    abstract::The emergence of an increasing number of antibiotic resistant human clinical bacteria has been a great cause of concern for the last decades. As an example, Staphylococcus aureus isolates in the hospital environment are becoming more and more resistant to antibiotics including vancomycin which is considered as a last ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章,评审

    doi:10.1111/j.1472-765X.2008.02490.x

    authors: Rihakova J,Belguesmia Y,Petit VW,Pilet MF,Prévost H,Dousset X,Drider D

    更新日期:2009-01-01 00:00:00

  • Antibiotic susceptibility of potentially probiotic Bifidobacterium isolates from the human gastrointestinal tract.

    abstract::Sixteen Bifidobacterium isolates from the human gastrointestinal tract were assayed for susceptibility to 44 antibiotics by soft agar overlay disc diffusion on TPY agar. Five isolates (3/7 B. bifidum and 2/3 B. breve) exhibited atypical antibiotic susceptibility profiles. Poor growth in the agar overlay accounted for ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.1998.00342.x

    authors: Charteris WP,Kelly PM,Morelli L,Collins JK

    更新日期:1998-05-01 00:00:00

  • Development of monoclonal antibody-coated immunomagnetic beads for separation and detection of norovirus (genogroup II) in faecal extract samples.

    abstract:AIMS:The aim of this study is to develop an RT-PCR assay combined with immunomagnetic beads (IMS/RT-PCR) coating monoclonal antibody (Mab) for separation and detection of norovirus (genogroup II) in faecal samples. We furthermore compare its detection limits with IMS/RT-PCR using polyclonal antibody (Pab) and the TRIzo...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2009.02638.x

    authors: Yao L,Wu Q,Wang D,Kou X,Zhang J

    更新日期:2009-08-01 00:00:00

  • The antimicrobial effects of helium and helium-air plasma on Staphylococcus aureus and Clostridium difficile.

    abstract:UNLABELLED:Healthcare-associated infections (HCAI) affect 5-10% of acute hospital admissions. Environmental decontamination is an important component of all strategies to prevent HCAI as many bacterial causes survive and persist in the environment, which serve as ongoing reservoirs of infection. Current approaches such...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.12091

    authors: Galvin S,Cahill O,O'Connor N,Cafolla AA,Daniels S,Humphreys H

    更新日期:2013-08-01 00:00:00