Skip to main content
ARS Home » Pacific West Area » Albany, California » Western Regional Research Center » Produce Safety and Microbiology Research » People & Locations » Steven Huynh

Steven Huynh
Produce Safety and Microbiology Research
Biological Science Lab Technician

Phone: (510) 559-6160
Fax: (510) 559-6162
Room WAB307

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.)
Complete genomic sequences of three Salmonella enterica subsp. enterica serovar muenchen strains from an orchard in San Joaquin County, California Reprint Icon - (Peer Reviewed Journal)
Tran, T.D., Huynh, S., Parker, C., Hnasko, R.M., Gorski, L.A., Khalsa Sat, D., Brown, P., McGarvey, J.A. 2020. Complete genomic sequences of three Salmonella enterica subsp. enterica serovar muenchen strains from an orchard in San Joaquin County, California. Microbiology Resource Announcements. 9(13):e00048-20. https://doi.org/10.1128/MRA.00048-20.
Campylobacter abundance in breastfed infants and identification of a new species in the global enterics multicenter study Reprint Icon - (Peer Reviewed Journal)
Bian, X., Garber, J.M., Cooper, K.K., Huynh, S., Jones, J., Mills, M., Rafala, D., Nasarin, D., Kotloff, K.L., Parker, C., Tennant, S.M., Miller, W.G., Szymanski, C.M. 2020. Campylobacter abundance in breastfed infants and identification of a new species in the global enterics multicenter study. mSphere. 5(1):e00735-19. https://doi.org/10.1128/mSphere.00735-19.
Whole-genome sequencing-based characterization of 100 Listeria monocytogenes isolates collected from food processing environments over a four-year period Reprint Icon - (Peer Reviewed Journal)
Hurley, D., Luque-Sastre, L., Parker, C., Huynh, S., Eshwar, A.K., Nguyen, S.V., Andrews, N., Moura, A., Fox, E.M., Jordan, K., Lehner, A., Stephan, R., Fanning, S. 2019. Whole-genome sequencing-based characterization of 100 Listeria monocytogenes isolates collected from food processing environments over a four-year period. mSphere. 4(4):e00252-19. https://doi.org/10.1128/mSphere.00252-19.
The Campylobacter jejuni helical to coccoid transition involves changes to peptidoglycan and ability to elicit an immune response Reprint Icon - (Peer Reviewed Journal)
Frirdich, E., Biboy, J., Pryjma, M., Lee, J., Huynh, S., Parker, C., Girardin, S.E., Vollmer, W., Gaynor, E.C. 2019. The Campylobacter jejuni helical to coccoid transition involves changes to peptidoglycan and ability to elicit an immune response. Molecular Microbiology. 112(1):280-301. https://doi.org/10.1111/mmi.14269.
Campylobacter jejuni demonstrates conserved proteomic and transcriptomic responses when co-cultured with human INT 407 and Caco-2 epithelial cells Reprint Icon - (Peer Reviewed Journal)
Negretti, N.M., Clair, G., Gourley, C.R., Huynh, S., Adkins, J.N., Parker, C., Konkel, M.E. 2019. Campylobacter jejuni demonstrates conserved proteomic and transcriptomic responses when co-cultured with human INT 407 and Caco-2 epithelial cells. Frontiers in Microbiology. 10:755. https://doi.org/10.3389/fmicb.2019.00755.
Complete genome sequences of three Shiga toxin-producing Escherichia coli O111:H8 strains exhibiting an aggregation phenotype Reprint Icon - (Peer Reviewed Journal)
Parker, C., Huynh, S., Bono, J.L., Miller, W.G., Cooley, M.B., Brandl, M. 2019. Complete genome sequences of three Shiga toxin-producing Escherichia coli O111:H8 strains exhibiting an aggregation phenotype. Microbiology Resource Announcements. 8(1):e01335-18. https://doi.org/10.1128/MRA.01335-18.
Complete genome sequence of Lactococcus lactis subsp. lactis strain 14B4, which inhibits the growth of Salmonella enterica serotype Poona in vitro Reprint Icon - (Peer Reviewed Journal)
Tran, T.D., Huynh, S., Parker, C., Han, R., Hnasko, R.M., Gorski, L.A., McGarvey, J.A. 2018. Complete genome sequence of Lactococcus lactis subsp. lactis strain 14B4, which inhibits the growth of Salmonella enterica serotype Poona in vitro. Microbiology Resource Announcements. 7(19):e01364-18. https://doi.org/10.1128/MRA.01364-18.
Complete genome sequence of the Arcobacter marinus type strain JCM 15502 Reprint Icon - (Peer Reviewed Journal)
Miller, W.G., Yee, E., Huynh, S., Parker, C. 2018. Complete genome sequence of the Arcobacter marinus type strain JCM 15502. Microbiology Resource Announcements. 7(16):e01269-18. https://doi.org/10.1128/MRA.01269-18.
Draft genome sequences of nine Campylobacter hyointestinalis subsp. lawsonii strains Reprint Icon - (Peer Reviewed Journal)
Bian, X., Huynh, S., Chapman, M.H., Szymanski, C., Parker, C., Miller, W.G. 2018. Draft genome sequences of nine Campylobacter hyointestinalis subsp. lawsonii strains. Microbiology Resource Announcements. 7(10):e01016-18. https://doi.org/10.1128/MRA.01016-18.
Complete genome sequence of Acinetobacter radioresistens strain LH6, a multidrug-resistant bacteriophage-propagating strain Reprint Icon - (Peer Reviewed Journal)
Crippen, C., Huynh, S., Miller, W.G., Parker, C., Szymanski, C.M. 2018. Complete genome sequence of Acinetobacter radioresistens strain LH6, a multidrug-resistant bacteriophage-propagating strain. Microbiology Resource Announcements. 7(5):e00929-18. https://doi.org/10.1128/MRA.00929-18.
Genome sequences of eight Shiga toxin-producing Escherichia coli strains isolated from a produce-growing region in California Reprint Icon - (Peer Reviewed Journal)
Parker, C., Cooper, K.K., Huynh, S., Smith, T.P., Bono, J.L., Cooley, M.B. 2018. Genome sequences of eight Shiga toxin-producing Escherichia coli strains isolated from a produce-growing region in California. Genome Announcements. 7(1):1-3. https://doi.org/10.1128/MRA.00807-18.
Catabolite repression by intracellular succinate in Campylobacter jejuni Reprint Icon - (Peer Reviewed Journal)
Van Der Stel, A., Van De Lest, C.H., Huynh, S., Parker, C., Van Putten, J.M., Wösten, M.M. 2018. Catabolite repression by intracellular succinate in Campylobacter jejuni. Environmental Microbiology. https://doi.org/10.1111/1462-2920.14042.
Complete genomic sequences of two salmonella enterica subsp. enterica serogroup C2 (O:6,8) strains from central California Reprint Icon - (Peer Reviewed Journal)
Gorski, L.A., Huynh, S., Cooper, K.K., Parker, C. 2017. Complete genomic sequences of two salmonella enterica subsp. enterica serogroup C2 (O:6,8) strains from central California. Genome Announcements. 5:e01234-17. https://doi.org/10.1128/genomeA.01234-17.
Complete Genome Sequence of a Shiga toxin-producing Enterobacter cloacae Clinical Isolate Reprint Icon - (Peer Reviewed Journal)
Carter, M.Q., Pham, A.C., Huynh, S., He, X. 2017. Complete Genome Sequence of a Shiga toxin-producing Enterobacter cloacae Clinical Isolate. Genome Announcements. 5(37):e00883-17. https://doi.org/10.1128/genomeA.00883-17.
Generation of the membrane potential and its impact on the motility, ATP production and growth in Campylobacter jejuni Reprint Icon - (Peer Reviewed Journal)
Van Der Stel, A., Boogerd, F.C., Huynh, S., Parker, C., Van Putten, J.P., Wösten, M.M. 2017. Generation of the membrane potential and its impact on the motility, ATP production and growth in Campylobacter jejuni. Molecular Microbiology. 105:637-651. https://doi:10.1111/mmi.13723.
Local genes for local bacteria: Evidence of allopatry in the genomes of transatlantic Campylobacter populations - (Peer Reviewed Journal)
Pascoe, B., Meric, G., Yahar, K., Wimaralathna, H., Murray, S., Hitchings, M.D., Sproston, E.L., Carrillo, C.D., Taboada, E.N., Cooper, K.K., Huynh, S., Cody, A., Jolley, K.A., Maiden, M.J., McCarthy, N., Didelot, X., Parker, C., Sheppard, S.K. 2017. Local genes for local bacteria: evidence of allopatry in the genomes of transatlantic Campylobacter populations. Molecular Ecology Resources. doi: 10.1111/mec.14176.
Comparative genomic analysis identifies a Campylobacter clade deficient in selenium metabolism - (Peer Reviewed Journal)
Miller, W.G., Yee, E., Lopes, B.S., Chapman, M.H., Huynh, S., Bono, J.L., Parker, C., Strachan, N., Forbes, K.J. 2017. Comparative genomic analysis identifies a Campylobacter clade deficient in selenium metabolism. Genome Biology and Evolution. doi: 10.1093/gbe/evx093.
Microbiota-derived short-chain fatty acids modulate expression of Campylobacter jejuni determinants required for commensalism and virulence - (Peer Reviewed Journal)
Leuthy, P.M., Huynh, S., Ribardo, D.A., Winter, S.E., Parker, C., Hendrixson, D.R. 2017. Microbiota-derived short-chain fatty acids modulate expression of Campylobacter jejuni determinants required for commensalism and virulence. mBio. 8(3):e00407-17. doi:10.1128/mBio.00407-17.
Morphology heterogeneity within a Campylobacter jejuni helical population Reprint Icon - (Peer Reviewed Journal)
Frirdich, E., Biboy, J., Huynh, S., Parker, C., Vollmer, W., Gaynor, E. 2017. Morphology heterogeneity within a Campylobacter jejuni helical population. Molecular Microbiology. 104(6):948-971. https://doi.org/10.1111/mmi.13672.
Complete genomic sequence of campylobacter jejuni subsp. jejuni HS:19 penner reference strain - (Peer Reviewed Journal)
Parker, C., Huynh, S., Heikema, A.P. 2017. Complete genomic sequence of campylobacter jejuni subsp. jejuni HS:19 penner reference strain. Genome Announcements. 5(8):e01701-16. doi: 10.1128/genomeA.01701-16.
The complete annotated genome sequences of three Campylobacter jejuni strains isolated from naturally colonized, farm raised chickens - (Peer Reviewed Journal)
Taveirne, M.E., Dunham, D.T., Perault, A., Beauchamp, J.M., Huynh, S., Parker, C., Dirita, V.J. 2017. The complete annotated genome sequences of three Campylobacter jejuni strains isolated from naturally colonized, farm raised chickens. Genome Announcements. 5(4):e01407-16. doi:10.1128/genomeA.01407-16.
Complete genome sequences of multidrug-resistant Campylobacter jejuni 14980A (turkey feces) and Campylobacter coli 14983A (housefly from turkey farm), harboring a novel gentamicin resistance mobile element. - (Peer Reviewed Journal)
Miller, W.G., Huynh, S., Parker, C., Neidermayer, J., Kathariou, S. 2016. Complete genome sequences of multidrug-resistant Campylobacter jejuni 14980A (turkey feces) and Campylobacter coli 14983A (housefly from turkey farm), harboring a novel gentamicin resistance mobile element. Genome Announcements. 4(5):e01175-16. doi:10.1128/genomeA.01175-16.
Complete genomic sequence of Campylobacter jejuni subsp. jejuni HS:19 strain RM1285 that was isolated from packaged chicken - (Peer Reviewed Journal)
Parker, C., Huynh, S., Heikema, A.P. 2016. Complete genomic sequence of Campylobacter jejuni subsp. jejuni HS:19 strain RM1285 that was isolated from packaged chicken. Genome Announcements. 4(5):e01100-16.
Complete genome sequence of the Campylobacter iguaniorum strain RM11343, isolated from an alpaca - (Peer Reviewed Journal)
Miller, W.G., Yee, E., Huynh, S., Chapman, M.H., Parker, C. 2016. Complete genome sequence of the Campylobacter iguaniorum strain RM11343, isolated from an alpaca. Genome Announcements. 4(3):e00646-16.
Complete genomic sequences of two outbreak strains of Salmonella enterica subsp. enterica serovar Thompson associated with cilantro - (Peer Reviewed Journal)
Parker, C., Huynh, S., Gorski, L.A., Cooper, K.K., Miller, W.G. 2015. Complete genomic sequences of two outbreak strains of Salmonella enterica subsp. enterica serovar Thompson associated with cilantro. Genome Announcements. 3(6):e01335-15.
Complete genomic sequences of Campylobacter jejuni strains RM3196 (233.94) and RM3197 (308.95) that were isolated from patients with Guillain-Barré Syndrome - (Peer Reviewed Journal)
Parker, C., Huynh, S., Heikema, A.P., Cooper, K.K., Miller, W.G. 2015. Complete genomic sequences of Campylobacter jejuni strains RM3196 (233.94) and RM3197 (308.95) that were isolated from patients with Guillain-Barré Syndrome. Genome Announcements. 3(6):e01312-15.
High frequency genetic variation of purine biosynthesis genes is a mechanism of success in Campylobacter jejuni - (Peer Reviewed Journal)
Cameron, A., Huynh, S., Scott, N.E., Frirdrich, E., Apel, D., Foster, L.J., Parker, C., Gaynor, E.C. 2015. High frequency genetic variation of purine biosynthesis genes is a mechanism of success in Campylobacter jejuni. mBio. doi: 10.1128.
Analysis of the activity and regulon of the two-component regulatory system encoded by Cjj1484 and Cjj1483 of Campylobacter jejuni - (Peer Reviewed Journal)
Luethy, P.M., Huynh, S., Parker, C., Hendrixson, D.R. 2015. Analysis of the activity and regulon of the two-component regulatory system encoded by Cjj1484 and Cjj1483 of Campylobacter jejuni. Journal of Bacteriology. 197:1592-1605.
The Campylobacter jejuni CprRS two-component regulatory system regulates aspects of the cell envelope - (Peer Reviewed Journal)
Svensson, S., Huynh, S., Parker, C., Gaynor, E.C. 2015. The Campylobacter jejuni CprRS two-component regulatory system regulates aspects of the cell envelope. Molecular Microbiology. 96:189-209.
Comparative genomics of the Campylobacter lari group - (Peer Reviewed Journal)
Miller, W.G., Yee, E., Chapman, M.H., Smith, T.P., Bono, J.L., Huynh, S., Parker, C., Vandamme, P., Luong, K., Korlach, J. 2014. Comparative genomics of the Campylobacter lari group. Genome Biology and Evolution. doi: 10.1093/gbe/evu249.
The complete genome sequence and annotation of a Campylobacter jejuni strain, MTVDSCj20, isolated from a naturally colonized farm-raised chicken - (Peer Reviewed Journal)
Taveirne, M.E., Dunham, D.T., Miller, W.G., Parker, C., Huynh, S., Dirita, V.J. 2014. The complete genome sequence and annotation of a Campylobacter jejuni strain, MTVDSCj20, isolated from a naturally colonized farm-raised chicken. Genome Announcements. 2(4):e00852-14. doi: 10.1128/genomeA.00852-14.
Effect of the surfactant Tween 80 on the detachment and dispersal of Salmonella enterica Thompson single cells and aggregates from cilantro leaves as revealed by image analysis - (Peer Reviewed Journal)
Brandl, M., Huynh, S. 2014. Effect of the surfactant Tween 80 on the detachment and dispersal of Salmonella enterica Thompson single cells and aggregates from cilantro leaves as revealed by image analysis. Applied and Environmental Microbiology. 80(16):5037-5042. DOI: 10.1128/AEM.00795-14.
Natural rpoS mutations contribute to the phenotypic heterogeneity of clonal populations in Escherichia coli O157:H7 - (Peer Reviewed Journal)
Carter, M.Q., Louie, J.W., Huynh, S., Parker, C. 2014. Natural rpoS mutations contribute to the phenotypic heterogeneity of clonal populations in Escherichia coli O157:H7. Food Microbiology. 44:108-118.
Complete genome sequences of two Escherichia coli O145:H28 outbreak strains of food origin - (Peer Reviewed Journal)
Cooper, K.K., Mandrell, R.E., Louie, J.W., Korlach, J., Clark, T.A., Parker, C., Huynh, S., Chain, P.S., Ahmed, S., Carter, M.Q. 2014. Complete genome sequences of two Escherichia coli O145:H28 outbreak strains of food origin. Genome Announcements. 2(3):e00482-14. DOI: 10.1128/genomeA.00482-14..
The microbiome structure and Campylobacter jejuni transcriptome in naturally-raised chickens - (Abstract Only)
Comparative genomics of enterohemorrhagic Escherichia coli O145:H28 demonstrates a common evolutionary lineage with Escherichia coli O157:H7 - (Peer Reviewed Journal)
Cooper, K.K., Mandrell, R.E., Louie, J.W., Korlach, J., Clark, T.A., Parker, C., Huynh, S., Chain, P.S., Ahmed, S., Carter, M.Q. 2014. Comparative genomics of enterohemorrhagic Escherichia coli O145:H28 demonstrates a common evolutionary lineage with Escherichia coli O157:H7. Biomed Central (BMC) Genomics. doi: 10.1186/1471-2164-15-17.
Complete genome sequence of salmonella enterica subsp. enterica Serovar Thompson Strain RM6836 - (Peer Reviewed Journal)
Parker, C., Gorski, L.A., Huynh, S. 2013. Complete genome sequence of salmonella enterica subsp. enterica Serovar Thompson Strain RM6836. Genome Announcements. 1(6):e00900-13. doi: 10.1128/genomeA.00900-13.
Whole Genome Shotgun Analysis: the Resolving Power to Distinguish 2009 and 2010 Clinical Isolates of Salmonella Typhimurium Possessing the Same PFGE Type - (Abstract Only)
Hypervariable purine biosynthesis genes contribute to stress response population heterogeneity in Campylobacter jejuni - (Abstract Only)
The complete genome sequences of 65 Campylobacter jejuni and C. coli strains - (Abstract Only)
Whole-Genome Sequencing Reveals Laboratory Salmonella Typhimurium Strain 14028s as a Likely Source of Outbreak Isolates from 2009-2010 - (Abstract Only)
The hyperosmotic stress response of Campylobacter jejuni Reprint Icon - (Peer Reviewed Journal)
Cameron, A., Frirdich, E., Huynh, S., Parker, C., Gaynor, E.C. 2012. The hyperosmotic stress response of Campylobacter jejuni. Journal of Bacteriology. November 2012, 194:(22)6116-6130.
RcsB contributes to the distinct stress fitness between Escherichia coli O157:H7 curli variants of 1993 hamburger-associated outbreak strains - (Peer Reviewed Journal)
Carter, M.Q., Parker, C., Louie, J.W., Huynh, S., Fagerquist, C.K., Mandrell, R.E. 2012. RcsB contributes to the distinct stress fitness between Escherichia coli O157:H7 curli variants of 1993 hamburger-associated outbreak strains. Applied and Environmental Microbiology. doi:10.0028/AEM.02157-12.
Regulation of energy metabolism by the extracytoplasmic function (ECF) s factors of Arcobacter butzleri - (Peer Reviewed Journal)
Martinez-Malaxetxeba, I., Mutts, R., Parker, C., Miller, W.G., Huynh, S., Gaastra, W., Van Putten, J.P., Fernandez-Astorga, A., Wosten, M.M. 2012. Regulation of energy metabolism by the extracytoplasmic function (ECF) s factors of Arcobacter butzleri. PLoS One. doi%2F10.1371%2Fjournal.pone.0044796.
FdhTU-modulated formate dehydrogenase expression and electron donor availability enhance recovery of Campylobacter jejuni following host cell infection Reprint Icon - (Peer Reviewed Journal)
Pryjma, M., Apel, D., Parker, C., Huynh, S., Gaynor, E.C. 2012. FdhTU-modulated formate dehydrogenase expression and electron donor availability enhance recovery of Campylobacter jejuni following host cell infection. Journal of Bacteriology. 194:3803-3813.
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 - (Peer Reviewed Journal)
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.
Distinct transcriptional profiles and phenotypes exhibited by Escherichia coli O157:H7 isolates related to the 2006 spinach-associated outbreak - (Peer Reviewed Journal)
Parker, C., Kyle, J.L., Huynh, S., Carter, M.Q., Brandl, M., Mandrell, R.E. 2012. Distinct transcriptional profiles and phenotypes exhibited by Escherichia coli O157:H7 isolates related to the 2006 spinach-associated outbreak. Applied and Environmental Microbiology. 78:455-463.
Salmonella biofilm formation on Aspergillus niger involves cellulose - chitin interactions Reprint Icon - (Peer Reviewed Journal)
Brandl, M., Carter, M.Q., Parker, C., Chapman, M.R., Huynh, S., Zhou, Y. 2011. Salmonella biofilm formation on Aspergillus niger involves cellulose - chitin interactions. PloS ONE 6(10):e25553.
Insights into Evolution of Escherichia coli O157:H7 from Complete Genome Sequence of Closely Related O55:H7 Precursor - (Abstract Only)
Molecular Insights into the Phenotypic Divergence in Natural Curli Variants of Escherichia coli O157:H7 - (Abstract Only)
Comparative genotypes of Salmonella enterica serovar Enteritidis Phage type 30 and 9c strains isolated from three outbreaks associated with raw almonds - (Peer Reviewed Journal)
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
Phenotypic Divergence in Curli Variants of Enterohemorrhagic Escherichia coli O157:H7 - (Abstract Only)
Transcriptome and phenotypic difference of Escherichia coli O157:H7 isolates related to the 2006 spinach-associated outbreak reveals variants in the bag - (Abstract Only)
Microarray-based Comparative Genomic Indexing of the Cronobacter genus (Enterobacter sakazakii) - (Peer Reviewed Journal)
Healy, B., Huynh, S., Mullane, N., O'Brian, S., Iverson, C., Stephen, R., Parker, C., Fanning, S. 2009. Microarray-based Comparative Genomic Indexing of the Cronobacter genus (Enterobacter sakazakii). International Journal of Food Microbiology. 136:159-64
Reduction of Salmonella Enteritidis Population Sizes on Almond Kernels with Infrared Heat - (Peer Reviewed Journal)
Brandl, M., Pan, Z., Huynh, S., Zhu, Y., Mc Hugh, T.H. 2008. Reduction of Salmonella Enteritidis Population Sizes on Almond Kernels with Infrared Heat. Journal of Food Protection. 71(5)-897-902
ARS News Articles