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United States Department of Agriculture

Agricultural Research Service

Related Topics

Beatriz Quiñones
Produce Safety and Microbiology Research
General Biological Science

Phone: (510) 559-6097
Fax: (510) 559-6162
Room WAB 214

USDA, ARS, PWA, WRRC-PSM
800 BUCHANAN STREET
ALBANY , CA 94710

Projects
Molecular Identification and Characterization of Bacterial and Viral Pathogens Associated with Foods
Appropriated (D)
  Accession Number: 430420
Characterization of Pathogenic Mechanisms Associated with Shiga Toxin 2 Subtypes Produced by Escherichia coli Strains
Specific Cooperative Agreement (S)
  Accession Number: 427126

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Antimicrobial resistance in Escherichia coli O157 and non-O157 recovered from feces of domestic farm animals in Northwestern Mexico Reprint Icon -
Amézquita-López, B.A., Quinones, B., Soto-Beltran, M., Lee, B.G., Yambao, J.C., Lugo-Melchor, O.Y., Chaidez, C. 2016. Antimicrobial resistance in Escherichia coli O157 and non-O157 recovered from feces of domestic farm animals in Northwestern Mexico. Antimicrobial Resistance and Infection Control. doi: 10.1186/s13756-015-0100-5.
An environmental shiga toxin-producing Escherichia coli O145 clonal population exhibits high-level phenotypic variation that includes virulence traits -
Carter, M.Q., Quinones, B., He, X., Louie, J.W., Zhong, W.W., Lee, B.G., Yambao, J.C., Mandrell, R.E., Cooley, M.B. 2015. An environmental shiga toxin-producing Escherichia coli O145 clonal population exhibits high-level phenotypic variation that includes virulence traits. Applied and Environmental Microbiology. doi: 10.1128/AEM.03172-15.
Serum Shiga toxin 2 values in patients during the acute phase of post-diarrheal hemolytic uremic syndrome -
Serum Shiga toxin 2 values in patients during the acute phase of diarrhoea-associated hemolytic uremic syndrome Reprint Icon -
He, X., Quinones, B., Te Loo, M., Loos, S., Scavia, G., Brigotti, M., Levtchenko, E., Monnens, L. 2015. Serum Shiga toxin 2 values in patients during the acute phase of diarrhoea-associated hemolytic uremic syndrome. Acta Paediatrica. 104(12):e564-568.
A Mathematical model to investigate quorum sensing regulation and its heterogenecity in pseudomonas syringae on leaves Reprint Icon -
Perez-Velazquez, J., Quinones, B., Hense, B., Kutler, C. 2015. Mathematical modelling of quorum sensing of pseudomonas syringae on leaves. Ecological Complexity. 21:128-141.
Top-down proteomic identification of Shiga toxin 2 subtypes from Shiga toxin-producing Escherichia coli by Matrix-Assisted Laser Desorption Ionization-Tandem Time of Flight mass spectrometry -
Fagerquist, C.K., Zaragoza, W.J., Sultan, O., Woo, N., Quinones, B., Cooley, M.B., Mandrell, R.E. 2014. Top-down proteomic identification of Shiga toxin 2 subtypes from Shiga toxin-producing Escherichia coli by Matrix-Assisted Laser Desorption Ionization-Tandem Time of Flight mass spectrometry. Applied and Environmental Microbiology. 8(9):2928-2940.
Low-density microarray technologies for rapid human norovirus genotyping -
Antimicrobial resistance in Escherichia coli O157 and non-O157 isolated from feces of domestic farm animals in Culiacan, Mexico -
Prevalence of Shiga toxin producing Escherichia coli, Salmonella enterica and Listeria monocytogenes at public access watershed sites in a California central coast agricultural region -
Cooley, M.B., Quinones, B., Oryang, D., Mandrell, R.E., Gorski, L.A. 2014. Prevalence of Shiga toxin producing Escherichia coli, Salmonella enterica and Listeria monocytogenes at public access watershed sites in a California central coast agricultural region. Frontiers in Cellular and Infection Microbiology. 4:30.
Characterization of shiga toxin-producing Escherichia coli recovered from domestic animals to determine stx variants, virulence genes, and cytotoxicity in mammalian cells Reprint Icon -
Amezquita-Lopez, B.A., Quinones, B., Lee, B.G., Chaidez, C. 2014. Characterization of shiga toxin-producing Escherichia coli recovered from domestic animals to determine stx variants, virulence genes, and cytotoxicity in mammalian cells. Frontiers in Cellular and Infection Microbiology. DOI: 10.3389/fcimb.2014.00007.
Career opportunities for college graduates with the Agricultural Research Service Agency of the U.S. Department of Agriculture -
Use of Low-Density DNA Microarrays and Photopolymerization for Genotyping Foodborne-Associated Noroviruses -
Top-down proteomic identification of Shiga toxin 2 variants from Shiga toxin-producing Escherichia coli (STEC) using MALDI-TOF-TOF-MS/MS-PSD -
Fagerquist, C.K., Zaragoza, W.J., Sultan, O., Woo, N., Quinones, B., Swimley, M.S., Cooley, M.B., Mandrell, R.E. 2013. Top-down proteomic identification of Shiga toxin 2 variants from Shiga toxin-producing Escherichia coli (STEC) using MALDI-TOF-TOF-MS/MS-PSD. ASMS20139833.3125VER.1.pdf.
Development of a robust methos for isolation of shiga toxin positive Escherichia coli (STEC) from fecal, plant, soil and water samples from leafy greens production region in California -
Cooley, M.B., Jay-Russell, M., Atwill, E.R., Carychao, D.K., Nguyen, K.M., Quinones, B., Patel, R., Walker, S., Swimley, M., Pierre-Jerome, E., Gordus, A., Mandrell, R.E. 2013. Development of a robust methos for isolation of shiga toxin positive Escherichia coli (STEC) from fecal, plant, soil and water samples from leafy greens production region in California. PLoS One. 8(6):e65716. doi:10.1371/journal.pone.0065716.
Detection of Shiga toxin variants, virulence genes and the relationship to cytotoxicity in Shiga toxin-producing Escherichia coli (STEC) from domestic farm animals -
Quantification and characterization of mucosa-associated and intracellular Escherichia coli in inflamatory bowel disease Reprint Icon -
Elliott, T.R., Hudspith, B.N., Wu, G., Cooley, M.B., Parkes, G., Quinones, B., Randall, L., Mandrell, R.E., Fagerquist, C.K., Brostoff, J., Rayment, N.B., Boussioutas, A., Petrovska, L., Sanderson, J.D. 2013. Quantification and characterization of mucosa-associated and intracellular Escherichia coli in inflamatory bowel disease. Inflammatory Bowel Diseases. 19(11):2326-2338.
Low-Density microarray technologies for rapid human norovirus genotyping -
Genotypic analyses of Shiga toxin-producing Escherichia coli O157 and non-O157 recovered from feces of domestic animals in rural farms in Mexico -
Amezquita-Lopez, B.A., Quinones, B., Cooley, M.B., Leon-Felix, J., Castro-Del Campo, N., Mandrell, R.E., Jimenez, M., Chaidez, C. 2012. Genotypic analyses of Shiga toxin-producing Escherichia coli O157 and non-O157 recovered from feces of domestic animals in rural farms in Mexico. PLoS One. 7(12):e51565. doi:101371/journal.pone.0051565.
Evidence of norovirus (NV)in a major produce production region watershed and a low density microarray strategy for detecting NV(Abstract) -
Shiga toxin-producing Escherichia coli: importance, outbreaks, and characterization methods -
Microarrays for foodborne virus detection and typing(Abstract) -
A single-step purification and molecular characterization of functional Shiga toxin 2 variants from pathogenic Escherichia coli -
He, X., Quinones, B., Mcmahon, S.A., Mandrell, R.E. 2012. A single-step purification and molecular characterization of functional Shiga toxin 2 variants from pathogenic Escherichia coli. Toxins. 4(7):487-504. doi:10.3390/toxins4070487
O-antigen and virulence profiling of Shiga toxin-producing Escherichia coli by a rapid and cost-effective DNA microarray colorimetric method Reprint Icon -
Quinones, B., Swimley, M.S., Narm, K., Patel, R.N., Cooley, M.B., Mandrell, R.E. 2012. O-antigen and virulence profiling of Shiga toxin-producing Escherichia coli by a rapid and cost-effective DNA microarray colorimetric method. Frontiers in Cellular and Infection Microbiology. 10.3389/fcimb.2012.00061/full.
Distinct PFGE and MLVA Genotypes of Shiga Toxin-Producing Escherichia coli (STEC)Recovered from Feces of Farm Animals in the Culiacan Valley, Mexico(Abstract) -
Selective recovery by different culture methods of Shiga toxin-producing Escherichia coli genotypes from a major produce production region in California(Abstract) -
E. coli serotype O55:H7 diversity supports parallel acquisition of bacteriophage at Shiga toxin phage insertion sites during evolution of the O157:H7 lineage Reprint Icon -
Kyle, J.L., Cummings, C.A., Parker, C., Quinones, B., Vatta, P., Newton, E., Huynh, S., Swimley, M.S., Degoricija, L., Barker, M., Fontanoz, S., Nguyen, K.M., Patel, R.N., Fang, R., Tebbs, R., Petrauskene, O., Furtado, M., Mandrell, R.E. 2012. E. coli serotype O55:H7 diversity supports parallel acquisition of bacteriophage at Shiga toxin phage insertion sites during evolution of the O157:H7 lineage. Journal of Bacteriology. 194:1885-1896.
Sensitive detection of Shiga toxin 2 and some of its Stx 2 variants in environmental samples by a novel immuno-PCR assay -
He, X., Qi, W., Quinones, B., Mcmahon, S.A., Cooley, M.B., Mandrell, R.E. 2011. Sensitive detection of Shiga toxin 2 and some of its Stx 2 variants in environmental samples by a novel immuno-PCR assay. Applied and Environmental Microbiology. 77(1):3558-3564. doi:10.1128/AEM.02205-10.
Molecular approachs for produce safety in California -
Quinones, B. 2011. Molecular approachs for produce safety in California. Meeting Abstract. 1:80-95.
Use of Photopolymerization for Genotyping Shiga Toxin-Producing Escherichia coli Recovered from Produce Production Regions in California -
Genotypic Characterization of Shiga Toxin-Producing Escherichia coli (STEC) Strains Recovered from Farm Animal Feces in Mexico -
Identification of Escherichia coli O157 by Using a Novel Colorimetric Detection Method with DNA Microarrays Reprint Icon -
Quinones, B., Swimley, M.S., Taylor, A.W., Dawson, E.D. 2011. Identification of Escherichia coli O157 by Using a Novel Colorimetric Detection Method with DNA Microarrays. Foodborne Pathogens and Disease. 8(6):705-7011.
Characterization of tetracycline resistance in Salmonella enterica strains recovered from irrigation water in the Culiacan Valley, Mexico -
Lugo-Melchor, Y., Quinones, B., Amezquita-Lopez, B.A., Leon-Felix, J., Garcia-Estrada, R., Chaidez, C. 2010. Characterization of tetracycline resistance in Salmonella enterica strains recovered from irrigation water in the Culiacan Valley, Mexico. Microbial Drug Resistance. 6(3):185-190.
Comparative genotypes of Salmonella enterica serovar Enteritidis Phage type 30 and 9c strains isolated from three outbreaks associated with raw almonds -
Parker, C., Huynh, S., Quinones, B., Harris, L., Mandrell,2010 R.E. Comparative genotypes of Salmonella enterica serovar Enteritidis Phage type 30 and 9c strains isolated from three outbreaks associated with raw almonds. Applied and Environmental Microbiology. 76: 3723-3731
Use of photopolymerization for the rapid and cost-effective identification of Shiga toxin-producing Escherichia coli on DNA microarrays -
Automatic image analysis and spot classification for detection of pathogenic Escherichia coli on glass slide DNA microarrays -
Haff, R.P., Quinones, B., Swimley, M.S., Toyofuku, N. 2010. Automatic image analysis and spot classification for detection of pathogenic Escherichia coli on glass slide DNA microarrays. Computers and Electronics in Agriculture. 71(2):163-169.
A Vero Cell Based Fluorescence Assay to Assess Relative Toxicities of Shiga Toxin 2 Subtypes from Escherichia coli Reprint Icon -
Quinones, B., Swimley, M.S. 2011. A Vero Cell Based Fluorescence Assay to Assess Relative Toxicities of Shiga Toxin 2 Subtypes from Escherichia coli. Methods in Molecular Biology. 739(1): 61-71.
A Cell-Based Fluorescent Assay to Detect the Activity of Shiga Toxin and Other Toxins That Inhibit Protein Synthesis Reprint Icon -
Masey, C.S., Quinones, B., Teter, K. 2011. A Cell-Based Fluorescent Assay to Detect the Activity of Shiga Toxin and Other Toxins That Inhibit Protein Synthesis. Methods in Molecular Biology. 739(1):49-59.
Validation of a Cell-Free Translation Assay for Detecting Shiga Toxin 2 in Bacterial Culture -
He, X., Quinones, B., Carter, J.M., Mandrell, R.E. 2009. Validation of a Cell-Free Translation Assay for Detecting Shiga Toxin 2 in Bacterial Culture. Journal of Agriculture and Food Chemistry. 57(11):5084-5088
Genotyping Campylobacter jejuni by comparative genome indexing: an evaluation with pulsed-field gel electrophoresis and flaA SVR sequencing -
Pittenger, L.G., Englen, M.D., Parker, C., Frye, J.G., Quinones, B., Horn, S.T., Son, I., Cray, P.J., Harrison, M.A. 2009. Genotyping Campylobacter jejuni by comparative genome indexing: an evaluation with pulsed-field gel electrophoresis and flaA SVR sequencing. Foodborne Pathogens and Disease. 6(3):337-349.
A Novel Cell-Based Method to Detect Shiga Toxin 2 from Escherichia coli O157:H7 and Inhibitors of Toxin Activity Reprint Icon -
Quinones, B., Masey, S., Friedman, M., Swimley, M.S, Teter, K. 2009. A Novel Cell-Based Method to Detect Shiga Toxin 2 from Escherichia coli O157:H7 and Inhibitors of Toxin Activity. Applied and Environmental Microbiology. 75(5):1410-1416.
Autoinducer-2 production in Campylobacter jejuni contributes to chicken colonization Reprint Icon -
Quinones, B., Miller, W.G., Bates, A.H., Mandrell, R.E. 2009. Autoinducer-2 production in Campylobacter jejuni contributes to chicken colonization. Applied and Environmental Microbiology. 75/1:281-285
Identification of plant compounds that inactivate Shiga toxin from Escherichia coli O157:H7 -
Comparative genomic analysis of clinical strains of Campylobacter jejuni from South Africa -
Quinones, B., Guilhabert, M.R., Miller, W.G., Mandrell, R.E., Lastovica, A.J., Parker, C. 2008. Comparative genomic analysis of clinical strains of Campylobacter jejuni from South Africa. PLoS One. 3(4)e2015_1-e2015_10
AI-2 signaling in Campylobacter jejuni and its contribution to chicken colonization -
Detection and Genotyping of Arcobacter and Campylobacter Isolates from Retail Chicken Samples by Use of DNA Oligonucleotide Arrays -
Quinones, B., Parker, C., Janda Jr, J.M., Miller, W.G., Mandrell, R.E. 2007. Detection and Genotyping of Arcobacter and Campylobacter Isolates from Retail Chicken Samples by Use of DNA Oligonucleotide Arrays. Applied and Environmental Microbiology. 73(11)3645-3655
CHARACTERIZATION OF GENETICALLY-MATCHED ISOLATES OF CAMPYLOBACTER JEJUNI REVEALS MUTATIONS IN GENES INVOLVED IN FLAGELLAR BIOSYNTHESIS ALTER THE ORGANISM'S VIRULENCE POTENTIAL -
Malik-Kale, P., Rapheal, B., Parker, C., Joens, L., Klena, J., Quinones, B., Keech, A., Konkel, M. 2007. Characterization of genetically-matched isolates of campylobacter jejuni reveals mutations in genes involved in flagellar biosynthesis alter the organism's virulence potential. Applied and Environmental Microbiology. 73(10) 3123-3136
COMPARATIVE GENOMIC ANALYSIS OF CAMPYLOBACTER JEJUNI STRAINS REVEALS DIVERSITY DUE TO GENOMIC ELEMENTS SIMILAR TO THOSE PRESENT IN C. JEJUNI STRAIN RM1221 -
Parker, C., Quinones, B., Miller, W.G., Horn, S.T., Mandrell, R.E. 2006. Comparative genomic analysis of Campylobacter jejuni strains reveals diversity due to genomic elements similar to those present in C. jejuni strain RM1221. Journal of Clinical Microbiology.44:11:4125-4135
Last Modified: 5/2/2016
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