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ARS Home » Pacific West Area » Albany, California » Western Regional Research Center » Produce Safety and Microbiology Research » People & Locations » Bertram Lee

Bertram Lee
Produce Safety and Microbiology Research
Biological Science Lab Technician

Phone: (510) 559-6446
Fax: (510) 559-6162

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

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Quantitating and verifying Shiga toxin expression from Californian environmental STEC by mass spectrometry -
Silva, C.J., Lee, B.G., Yambao, J.C., Erickson-Beltran, M.L., Quinones, B. 2019. Quantitating and verifying Shiga toxin expression from Californian environmental STEC by mass spectrometry. Meeting Abstract. Poster. ARS-FSIS 2019 meeting.
Software for top-down proteomic identification of a plasmid-borne factor (and other proteins) from genomically sequenced pathogenic bacteria using MALDI-TOF-TOF-MS/MS and post-source decay -
Fagerquist, C.K., Lee, B.G., Zaragoza, W.J., Yambao, J.C., Quinones, B. 2018. Software for top-down proteomic identification of a plasmid-borne factor (and other proteins) from genomically sequenced pathogenic bacteria using MALDI-TOF-TOF-MS/MS and post-source decay. International Journal of Mass Spectrometry. 438:1-12. https://doi.org/10.1016/j.ijms.2018.12.006.
Clinically-relevant Shiga toxin 2 subtypes from environmental Shiga toxin-producing Escherichia coli identified by top-down/middle-down proteomics and DNA sequencing -
Fagerquist, C.K., Zaragoza, W.J., Lee, B.G., Yambao, J.C., Quinones, B. 2018. Clinically-relevant Shiga toxin 2 subtypes from environmental Shiga toxin-producing Escherichia coli identified by top-down/middle-down proteomics and DNA sequencing. Clinical Mass Spectrometry. 11:27-36. https://doi.org/10.1016/j.clinms.2018.12.001.
Using nanospray liquid chromatography and mass spectrometry to quantitate Shiga toxin production in environmental Escherichia coli recovered from a major produce production region in California -
Silva, C.J., Lee, B.G., Yambao, J.C., Erickson-Beltran, M.L., Quinones, B. 2019. Using nanospray liquid chromatography and mass spectrometry to quantitate Shiga toxin production in environmental Escherichia coli recovered from a major produce production region in California. Journal of Agricultural and Food Chemistry. 67(5): 1554-1562. https://doi.org/10.1021/acs.jafc.8b05324.
Top-down proteomic identification of a novel antibiotic-induced plasmid-encoded factor from Shiga toxin-producing Escherichia coli (STEC) using MALDI-TOF-TOF-MS/MS and post-source decay -
Fagerquist, C.K., Lee, B.G., Zaragoza, W.J., Yambao, J.C., Quinones, B. 2018. Top-down proteomic identification of a novel antibiotic-induced plasmid-encoded factor from Shiga toxin-producing Escherichia coli (STEC) using MALDI-TOF-TOF-MS/MS and post-source decay. Proceedings for 66th Conference on Mass Spectrometry and Allied Topics, June 3-7, 2018, San Diego, California.
First report of an atypical new Aspergillus parasiticus isolates with nucleotide insertion in aflR gene resembling to A. sojae -
Hua, S.T., Parfitt, D.E., Sarreal, S.L., Lee, B.G., Wood, D.F. 2018. First report of an atypical new Aspergillus parasiticus isolates with nucleotide insertion in aflR gene resembling to A. sojae. Mycotoxin Research. 34(2):151-157. https://doi.org/10.1007/s12550-018-0309-2.
Screening for the presence of mcr-1/mcr-2 genes in Shiga toxin-producing Escherichia coli recovered from a major produce-production region in California -
Mavrici, D., Yambao, J.C., Lee, B.G., Quinones, B., He, X. 2017. Screening for the presence of mcr-1/mcr-2 genes in Shiga toxin-producing Escherichia coli recovered from a major produce-production region in California. PLoS One. 12(11):e0187827. https://doi.org/10.1371/journal.pone.0187827.
Draft genome sequences of Escherichia coli O113:H21 strains recovered from a major produce-production region in California -
Quinones, B., Yambao, J.C., Lee, B.G. 2017. Draft genome sequences of Escherichia coli O113:H21 strains recovered from a major produce-production region in California. Genome Announcements. https://doi.org/10.1128/genomeA.01203-17.
Sensitive genotyping of foodborne-associated human noroviruses and hepatitis A virus using an array-based platform -
Quinones, B., Lee, B.G., Martinsky, T.J., Yambao, J.C., Haje, P.K., Schena, M. 2017. Sensitive genotyping of foodborne-associated human noroviruses and hepatitis A virus using an array-based platform. Sensors. 17(9):2157. https://doi.org/10.3390/s17092157.
Concurrent detection of human norovirus and bacterial pathogens in water samples from an agricultural region in Central California Coast -
Tian, P., Yang, D., Lei, S., Wang, D., Li, Q., Gorski, L.A., Lee, B.G., Quinones, B., Cooley, M.B. 2017. Concurrent detection of human norovirus and bacterial pathogens in water samples from an agricultural region in Central California Coast. Frontiers in Microbiology. 8:1560. https://doi.org/10.3389/fmicb.2017.01560.
Isolation, genotyping, and antimicrobial resistance of zoonotic shiga toxin-producing escherichia coli -
Amézquita-López, B.A., Soto-Beltrán, M., Lee, B.G., Yambao, J.C., Quinones, B. 2017. Isolation, genotyping, and antimicrobial resistance of zoonotic shiga toxin-producing escherichia coli. Journal of Microbiology, Immunology. 51(4):425-434. https://doi.org/10.1016/j.jmii.2017.07.004.
Molecular sequence typing reveals genotypic diversity among Escherichia coli isolates recovered from a cantaloupe packinghouse in Northwestern Mexico -
Quinones, B., Campos-Sauceda, J.P., Lee, B.G., Yambao, J.C., Chaidez, C. 2017. Molecular sequence typing reveals genotypic diversity among Escherichia coli isolates recovered from a cantaloupe packinghouse in Northwestern Mexico. Letters in Applied Microbiology. doi: 10.1111/lam.12733.
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.
Low-density microarray technologies for rapid human norovirus genotyping -
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.
Evidence of norovirus (NV)in a major produce production region watershed and a low density microarray strategy for detecting NV(Abstract) -