Projects

MICROBIAL COMMUNITIES AND INTERACTIONS AND THEIR IMPACT ON FOOD SAFETY Appropriated (D)   Accession Number: 420978

Publications (Clicking on the reprint icon will take you to the publication reprint.)

Phage insertion in mlrA and variations in rpoS limit curli expression and biofilm formation in Escherichia coli serotype O157:H7 - (Peer Reviewed Journal) - (03-Jun-13)

Nonpeptidic mimics of host defense proteins as antimicrobial agents for E. coli O104:H4, campylobacter spp. and other foodborne pathogens - (Abstract Only)

Mithal, S., Chen, C., Scott, R. 2012. Nonpeptidic mimics of host defense proteins as antimicrobial agents for E. coli O104:H4, campylobacter spp. and other foodborne pathogens. Meeting Abstract. Poster F-1494.

Peroxide resistance in Escherichia coli serotype O157:H7 biofilms is regulated by both RpoS dependent and independent mechanisms - (Peer Reviewed Journal)

Uhlich, G.A., Chen, C., Cottrell, B.J., Irwin, P.L., Phillips, J.G. 2012. Peroxide resistance in Escherichia coli serotype O157:H7 biofilms is regulated by both RpoS dependent and independent mechanisms. Microbiology. 158:2225-2234.

Regulation of the csgD promoter by global regulators HN-S, IHF, and RpoS in E. coli O157:H7 isolates - (Abstract Only)

Chen, C., Uhlich, G.A. 2012. Regulation of the csgD promoter by global regulators HN-S, IHF, and RpoS in E. coli O157:H7 isolates [abstract]. Poster p-3-121.

Understanding the role of the catalase/peroxide genes in H2O2 resistance of E. coli serotype O157:H7 biofilms - (Abstract Only)

Uhlich, G.A., Chen, C., Irwin, P.L. 2012. Understanding the role of the catalase/peroxide genes in H2O2 resistance of E. coli serotype O157:H7 biofilms [abstract]. 1:1.

A method for correcting standard-based real-time PCR DNA quantitation when the standard's polymerase reaction efficiency is significantly different from that of the unknown's - (Peer Reviewed Journal)

Irwin, P.L., Nguyen, L.T., Chen, C., Uhlich, G.A., Paoli, G. 2012. A method for correcting standard-based real-time PCR DNA quantitation when the standard's polymerase reaction efficiency is significantly different from that of the unknown's. Analytical and Bioanalytical Chemistry. 402:2713-2725.

A cloning vector for creation of Escherichia coli lacZ translational fusions and generation of linear template for chromosomal integrations - (Peer Reviewed Journal)

Uhlich, G.A., Chen, C. 2012. A cloning vector for creation of Escherichia coli lacZ translational fusions and generation of linear template for chromosomal integrations. Plasmid Journal. 67(3):259-263.

Evaluation of pyrosequencing for assembly of plasmids carrying IS elements - (Abstract Only)

Chen, C., Lindsey, R.L., Strobaugh Jr, T.P., Frye, J.G., Bono, J.L., Smith, T.P., Meinersmann, R.J. 2011. Evaluation of pyrosequencing for assembly of plasmids carrying IS elements [abstract]. 111th ASM General Meeting.

Antimicrobial activity of spherical silver nanoparticles: evidence for induction of a prolonged bacterial lag phase - (Abstract Only) - (28-Feb-11)

Sequence analysis of a group of low molecular-weight plasmids carrying multiple IS903 elements flanking a kanamycin resistance aph gene in Salmonella enterica serovars - (Peer Reviewed Journal)

Chen, C., Strobaugh Jr, T.P., Lindsey, R.L., Frye, J.G., Uhlich, G.A. 2011. Sequence analysis of a group of low molecular-weight plasmids carrying multiple IS903 elements flanking a kanamycin resistance aph gene in Salmonella enterica serovars. Plasmid Journal. 65:246-252.

Antimicrobial activity of spherical silver nanoparticles prepared using a biocompatible macromolecular capping agent: evidence for induction of a greatly prolonged bacterial lag phase - (Peer Reviewed Journal)

Irwin, P.L., Martin, J., Nguyen, L.T., He, Y., Gehring, A.G., Chen, C. 2010. Antimicrobial activity of spherical silver nanoparticles prepared using a biocompatible macromolecular capping agent: evidence for induction of a greatly prolonged bacterial lag phase. Journal of Nanobiotechnology (Biomed Central Open Access). 34:1-12.

Prevalence of ColE1-like plasmids and kanamycinr resistance genes in Salmonella enterica serotypes - (Peer Reviewed Journal)

Chen, C., Lindsey, R.L., Strobaugh Jr, T.P., Meinersmann, R.J., Frye, J.G. 2010. Prevalence of ColE1-like plasmids and kanamycin resistance genes in Salmonella enterica serotypes. Applied and Environmental Microbiology. doi:10.1186/1471-2180-10-207.

A POPULATION STUDY OF E. COLI DOUBLING TIMES: EVIDENCE OF AN ANOMALOUS BIMODAL DISTRIBUTION BELOW A THRESHOLD CELL CONCENTRATION - (Peer Reviewed Journal)

Irwin, P.L., Paoli, G., Chen, C., Nguyen, L.T. 2010. A POPULATION STUDY OF E. COLI DOUBLING TIMES: EVIDENCE OF AN ANOMALOUS BIMODAL DISTRIBUTION BELOW A THRESHOLD CELL CONCENTRATION. BMC Microbiology. 10:207.

The relationship between purely stochastic sampling error and the number of technical replicates used to estimate concentration at an extreme dilution - (Peer Reviewed Journal)

Irwin, P.L., Nguyen, L.T., Chen, C. 2010. The relationship between purely stochastic sampling error and the number of technical replicates used to estimate concentration at an extreme dilution. Analytical and Bioanalytical Chemistry. DOI:10.1007/s00216-010-3967-2

Distribution of ColE1-like KAN-resistance plasmids in a population of Salmonella enterica from animal diagnostic samples - (Abstract Only)

Chen, C., Lindsey, R.L., Strobaugh Jr, T.P., Frye, J.G., Meinersmann, R.J. 2010. Distribution of ColE1-like KAN-resistance plasmids in a population of Salmonella enterica from animal diagnostic samples [abstract]. 1:1.

Characterization of Small ColE1-Like Plasmids Conferring Kanamycin Resistance in Salmonella enterica subsp. enterica serovars Typhimurium and Newport - (Peer Reviewed Journal)

Chen, C., Strobaugh Jr, T.P., Frye, J.G. 2010. Characterization of Small ColE1-Like Plasmids Conferring Kanamycin Resistance in Salmonella enterica subsp. enterica serovars Typhimurium and Newport. Plasmid Journal. 63:150-154.

QUANTIFICATIVE ANALYSIS OF VIABLE, STRESSED AND DEAD CELLS OF CAMPYLOBACTER JEJUNI STRAIN 81-176 - (Peer Reviewed Journal)

He, Y., Chen, C. 2010. QUANTIFICATIVE ANALYSIS OF VIABLE, STRESSED AND DEAD CELLS OF CAMPYLOBACTER JEJUNI STRAIN 81-176. Food Microbiology. 27:439-446.

Typing and characterization of ColE1-like plasmids conferring kanamycin resistance in Salmonella enterica serotypes - (Abstract Only)

Chen, C., Lindsey, R.L., Strobaugh Jr, T.P., Frye, J.G., Cray, P.J., Meinersmann, R.J. 2009. Typing and characterization of ColE1-like plasmids conferring kanamycin resistance in Salmonella enterica serotypes. Meeting Abstract. Poster Z048.

Binding of non-target microorganisms from food washes to anti-Salmonella and anti-E. coli O157 immuno-magnetic beads: minimizing the errors of random sampling in extreme dilute systems - (Peer Reviewed Journal)

Irwin, P.L., Nguyen, L.T., Chen, C. 2008. Binding of non-target microorganisms from food washes to anti-Salmonella and anti-E. coli O157 immuno-magnetic beads: minimizing the errors of random sampling in extreme dilute systems. Analytical and Bioanalytical Chemistry. 391:515-524.

Binding of Nontarget Organisms to Anti-Salmonella and Anti-E. coli O157 Immunomagnetic Beads: Most Probable Composition of Background Eubacteria - (Peer Reviewed Journal)

Irwin, P.L., Nguyen, L., Chen, C., Paoli, G. 2008. Binding of Nontarget Organisms to Anti-Salmonella and Anti-E. coli O157 Immunomagnetic Beads: Most Probable Composition of Background Eubacteria. Analytical and Bioanalytical Chemistry. 391:525-536.

Analysis of AI-2/LuxS dependent transcriptional profiling in Campylobacter jejuni 81-176 - (Peer Reviewed Journal)

He, Y., Frye, J.G., Strobaugh Jr, T.P., Chen, C. 2008. Ai-2/luxs dependent transcriptional profiling in campylobacter jejuni 81-176. Foodborne Pathogens and Disease. 5(4):399-415.

The Biofilm Forming Potential of Bacterial Species in the Genus Campylobacter - (Peer Reviewed Journal)

Gunther, N.W., Chen, C. 2009. The Biofilm Forming Potential of Bacterial Species in the Genus Campylobacter. Food Microbiology. 26:44-51.

Microarray Analysis of Quorum-Sensing Regulated Gene Expression in Campylobacter jejuni - (Abstract Only)

He, Y., Frye, J.G., Chen, C. 2007. Microarray Analysis of Quorum-Sensing Regulated Gene Expression in Campylobacter jejuni. Meeting Abstract.

Comparison of methods for detecting live, stressed, and dead cells of Campylobacter jejuni - (Abstract Only)

Chen, C., He, Y. 2007. Comparison of methods for detecting live, stressed, and dead cells of Campylobacter jejuni. Abstract. International Association for Food Protection. P3-50.

Detection of live/dead Campylobacter jejuni cells by real-time PCR - (Abstract Only)

Chen, C., He, Y. 2006. Detection of live/dead Campylobacter jejuni cells by real-time PCR. Abstract. p.3-1.

AI-2 Quorum Sensing in Campylobacter jejuni - (Abstract Only)

He, Y., Chen, C. 2006. Ai-2 quorum sensing in campylobacter jejuni. Meeting Abstract.

COMPLETE NUCLEOTIDE SEQUENCES OF 84.5-KB AND 3.2-KB PLASMIDS IN THE MULTI-ANTIBIOTIC RESISTANT SALMONELLA ENTERICA SEROVAR TYPHIMURIUM U302 STRAIN G8430 - (Peer Reviewed Journal)

Chen, C., Nace, G., Solow, B., Fratamico, P.M. 2007. Complete nucleotide sequences of 84.5-kb and 3.2-kb plasmids in the multi-antibiotic resistant salmonella enterica serovar typhimurium u302 strain g8430. Plasmid. 57:29-53.

OXYGEN CONSUMPTION RATE OF CAMPYLOBACTER JEJUNI DURING GROWTH AND SURVIVAL UNDER VARIOUS OXYGEN LEVELS - (Abstract Only)

Chen, C., Paoli, G., Irwin, P.L. 2006. Oxygen consumption rate of campylobacter jejuni during growth and survival under various oxygen levels. {Abstract}. International Association of Food Protection. P4-59.

QUORUM SENSING IN CAMPYLOBACTER SPECIES - (Abstract Only)

Chen, C. 2005. Quorum sensing in Campylobacter species. Institute of Food Technologiests Abstract. Paper # 42-5.

DNA SEQUENCE OF THE ESCHERICHIA COLI O103 O ANTIGEN GENE CLUSTER AND DETECTION OF ENTEROHEMORRAGIC E. COLI O103 BY PCR AMPLIFICATION OF THE WZX AND WZY GENES - (Peer Reviewed Journal)

Fratamico, P.M., Debroy, C., Strobaugh Jr, T.P., Chen, C. 2005. Dna sequence of the escherichia coli o103 o antigen gene cluster and detection of enterohemorragic e. coli o103 by pcr amplification of the wzx and wzy genes. Canadian Journal of Microbiology.

SINGLE CHAIN ANTIBODY WITH SPECIFICITY FOR LISTERIA MONOCYTOGENES - (Peer Reviewed Journal)

Paoli, G., Chen, C., Brewster, J.D. 2004. Single chain antibody with specificity for listeria monocytogenes. Journal of Immunological Methods.Vol 289. page 147-155.

THE EFFECT OF CAMPYLOBACTER JEJUNI POPULATION DENSITY ON SURVIVAL AND AI-2 PRODUCTION AT VARYING OXYGEN LEVELS - (Abstract Only)

Chen, C., Irwin, P.L. 2004. The effect of Campylobacter jejuni population density on survival and AI-2 production at varying oxygen levels. International Association for Food Protection Program and Abstract Book. P132. pg. 95.

BLOCKING NON-SPECIFIC ADSORPTION OF NATIVE FOOD-BORNE MICROORGANISMS BY IMMUNO-MAGNETIC BEADS WITH IOTA-CARRAGEENAN - (Peer Reviewed Journal)

IRWIN, P.L., GEHRING, A.G., TU, S., CHEN, C. BLOCKING NON-SPECIFIC ADSORPTION OF NATIVE FOOD-BORNE MICROORGANISMS BY IMMUNO-MAGNETIC BEADS WITH IOTA-CARRAGEENAN. CARBOHYDRATE RESEARCH. 2004. V. 339(3) pg. 613-621

CHARACTERIZATION OF TWO PLASMIDS THAT POSSESS ANTIBIOTIC RESISTANCE GENES IN SALMONELLA ENTERICA SEROVAR TYPHIMURIUM U302 STRAIN G8430 - (Abstract Only)

CHEN, C., NACE JR, G.W., BRIGGS, C.E., SOLOW, B., FRATAMICO, P.M. CHARACTERIZATION OF TWO PLASMIDS THAT POSSESS ANTIBIOTIC RESISTANCE GENES IN SALMONELLA ENTERICA SEROVAR TYPHIMURIUM U302 STRAIN G8430. MEETING ABSTRACT. 2003.

A 6X6 DROP PLATE METHOD FOR SIMULTANEOUS COLONY COUNTING AND MPN ENUMERATION OF CAMPYLOBACTER JEJUNI, LISTERIA MONOCYTOGENES, AND ESCHERICHIA COLI - (Peer Reviewed Journal)

CHEN, C., NACE JR, G.W., IRWIN, P.L. A 6X6 DROP PLATE METHOD FOR SIMULTANEOUS COLONY COUNTING AND MPN ENUMERATION OF CAMPYLOBACTER JEJUNI, LISTERIA MONOCYTOGENES, AND ESCHERICHIA COLI. JOURNAL OF MICROBIOLOGICAL METHODS. 2003.

SEQUENCE OF THE ESCHERICHIA COLI O121 O ANTIGEN GENE CLUSTER AND DETECTION OF E. COLI O121 BY PCR AMPLIFICATION OF THE WZX AND WZY GENES - (Peer Reviewed Journal)

FRATAMICO, P.M., BRIGGS, C.E., NEEDLE, D., CHEN, C., DEBROY, C. Sequence of the Escherichia coli O121 O antigen gene cluster and detection of E. coli O121 by PCR amplification of the wzx and wzy genes. JOURNAL OF CLINICAL MICROBIOLOGY. Vol. 41. No. 7. pg. 3379-3383.