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United States Department of Agriculture

Agricultural Research Service

Related Topics

Subbarao Ravva (Subba)
Produce Safety and Microbiology Research
Microbiologist

Phone: (510) 559-6176
Fax: (510) 559-6162
USDA, ARS, PWA, WRRC-PSM
800 BUCHANAN STREET
ALBANY, CA, 94710

Projects
Biology and Control of Human Pathogens on Fresh Produce
Appropriated (D)
  Accession Number: 421196

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Fitness of outbreak and environmental strains of Escherichia coli O157:H7 in aerosolizable soil and association of clonal variation in stress gene regulation - (Peer Reviewed Journal)
Ravva, S.V., Cooley, M.B., Sarreal, C.Z., Mandrell, R.E. 2014. Fitness of outbreak and environmental strains of Escherichia coli O157:H7 in aerosolizable soil and association of clonal variation in stress gene regulation. Pathogens. 3:528-548. DOI: 10.3390/pathogens3030528.
Rapid detection of predation of Escherichia coli O157:H7 and sorting of bacterivorous tetrahymena by flow cytometry - (Peer Reviewed Journal)
Ravva, S.V., Hernlem, B.J., Sarreal, C.Z. 2014. Rapid Detection of predation of Escherichia coli O157:H7 and sorting of bacterivorous tetrahymena by flow cytometry. Frontiers in Cellular and Infection Microbiology. DOI:10.3389/fcimb.2014.000057.
Intra and inter-strain differences in fitness of Escherichia coli O157:H7 to protozoan predation and survival in soil - (Abstract Only) - (18-Mar-13)
Altered protozoan and bacterial communities and survival of Escherichia coli O157:H7 in monensin-treated dairy wastewater from a dairy lagoon - (Peer Reviewed Journal)
Ravva, S.V., Sarreal, C.Z., Mandrell, R.E. 2013. Protozoan and bacterial community shifts during enhanced survival of Escherichia coli O157:H7 in monensin-treated dairy wastewater. PLoS One. 8(1):e54782.doi:10.1371/journal.pone.0054782.
Bacterial communities in urban aerosols collected with wetted-wall cyclonic samplers and seasonal fluctuations of live and culturable airborne bacteria - (Peer Reviewed Journal)
Ravva, S.V., Hernlem, B.J., Sarreal, C.Z., Mandrell, R.E. 2012. Bacterial communities in urban aerosols collected with wetted-wall cyclonic samplers and seasonal fluctuations of live and culturable airborne bacteria. Journal of Environmental Monitoring. 14(2):473-481. doi: 10.1039/clem10573d.
Bacterial communities in aerosols and manure samples from two different dairies in central and Sonoma valleys of California Reprint Icon - (Peer Reviewed Journal)
Ravva, S.V., Sarreal, C.Z., Mandrell, R.E. 2011. Bacterial communities in aerosols and manure samples from two different dairies in central and Sonoma valleys of California. PLoS One. 6(2):e17281.
Identification of protozoa in dairy lagon Wwsterwater that consume Escherichia coli O157:H7 preferentially - (Peer Reviewed Journal)
Ravva, S.V., Sarreal, C.Z., Mandrell, R.E. 2010. Identification of protozoa in dairy lagon Wwsterwater that consume Escherichia coli O157:H7 preferentially. PLoS One. 5:12 e15671.
Native protozoa decrease Escherichia coli O157:H7 in microcosms of wastewater from a dairy lagoon - (Abstract Only) - (02-Mar-10)
Application of flow cytometry and cell sorting to the bacterial analysis of environmental aerosol samples - (Peer Reviewed Journal)
Hernlem, B.J., Ravva, S.V. 2007. Application of flow cytometry and cell sorting to the bacterial analysis of environmental aerosol samples. Journal of Environmental Monitoring. 2007(9) 1317-1322.
Extractable Organic Components and Nutrients in Wastewater from Dairy Lagoons Influence the Growth and Survival of Escherichia coli 0157:H7 - (Peer Reviewed Journal)
Ravva, S.V., Korn, A.M. 2007. Extractable Organic Components and Nutrients in Wastewater Influence the Growth of Escherichia coli 0157:H7 in Dairy Lagoons. Applied and Environmental Microbiology. 73(7):2191-2198.
Nutrients and Wastewater Components Influence the Survival and Growth of Pathogenic Escherichia Coli O157:h7 in Dairy Lagoons - (Proceedings)
Ravva, S.V. 2006. Nutrients and wastewater components influence the survival and growth of pathogenic escherichia coli o157:h7 in dairy lagoons [Abstract]. 2nd Federation of European Microbioilogy Societies (FEMS) Congress of European Microbiologists. Poster #P.ENV.109.
Survival of Escherichia Coli O157:h7 and Salmonella Enterica in Manure Waste Water from Dairy Lagoons - (Peer Reviewed Journal)
Ravva, S.V., Sarreal, C.Z., Duffy, B., Stanker, L.H. 2006. Survival of escherichia coli o157:h7 and salmonella enterica in manure waste water from dairy lagoons. Journal of Applied Microbiology. 101(2006):891-902
Real-Time Quantitative Pcr Detection of Mycobacterium Avium Subsp. Paratuberculosis and Differentiation from Other Mycobacteria Using Sybr Green and Taqman Assays - (Peer Reviewed Journal)
Ravva, S.V., Stanker, L.H. 2005. Real-time quantitative pcr detection of mycobacterium avium subsp. paratuberculosis and differentiation from other mycobacteria using sybr green and taqman assays. Journal of Microbiological Methods. 63(2005) 305-317.
Sybr Green and Taqman Assays for Sensitive Detection and Differentiation of Mycobacterium Avium Subsp. Paratuberculosis from Other Mycobacteria - (Proceedings) - (16-Mar-05)
Identification of Bacterial Populations in Agricultural Waste Water Using 16s Rdna Sequences and Other Genetic Markers. - (Abstract Only)
Mcgarvey, J.A., Stanker, L.H., Ravva, S.V., Miller, W.G., Sanchez, S. 2004. Identification of bacterial populations in agricultural waste water using 16s rdna sequences and other genetic markers [Abstract]. American Society for Microbiology Meeting. Poster Q030.
Bacterial Analysis of Dairy Wastewater, a Molecular Approach - (Proceedings)
McGarvey, J.A., Ravva, S.V., Stanker, L.H., Miller, W.G., Sanchez, S. Bacterial analysis of dairy wastewater, a molecular approach. Meeting Abstract.
Effect of Molasses on Regrowth of E. Coli O157:h7 and Salmonella in Compost Teas - (Peer Reviewed Journal)
Duffy,B., Sarreal, C., Ravva, S., Stanker, L. 2004. Effect of molasses on regrowth of E. coli O157:H7 and Salmonella in compost teas. Compost Science & Utilization. 12(1):93-96.
Genomic Analysis of Macrophages Infected with M. Tuberculosis, M. Avium and M. Smegmatis. - (Abstract Only)
Mcgarvey, J.A., Stanker, L.H., Ravva, S.V., Bermudez, L. 2003. Genomic analysis of macrophages infected with m. tuberculosis, m. avium and m. smegmatis [Abstract]. Poster 5613.
Survival of E. Coli 0157:h7 in Aerated Dairy Manure Lagoons. - (Proceedings)
Stanker, L.H. and Ravva, S.V., 2002. Survival of E. coli 0157:H7 in aerated dairy manure lagoons. In Cherry, J.P. and Pavlath, A.E. (eds.) Proceedings of the 31st United States-Japan Cooperative Program in Natural Resources (UJNR) Protein Resources Panel, p. M1-6, December 1-6, 2002, Monterey, CA.
Regrowth of Pathogenic Bacteria in Compost Teas and Risk of Transmission to Strawberry Plants. - (Proceedings)
Duffy, B., Sarreal, C., Stevenson, R., Ravva, S. and Stanker, L., 2002. Regrowth of pathogenic bacteria in compost teas and risk of transmission to strawberry plants. p. 1142-1149. In F.C. Michel, Jr., R.F. Rynk and H.A.J. Hoitink (ed.), Proceedings of 2002 International Symposium: Composting and Compost Utilization, The JG Press, Inc., Emmaus, PA. (CD-ROM from JG Press).
Bacterial Detection Using Sensitive Immunochemical Methods - (Proceedings)
Stanker, L.H., Sheffield, C., Beier, R.C. Andreotti, P., Venkateswaran, K., McBride, M.T., Ravva, S.V., Duffy, B.K., Mandrell, R.E. 2001. Bacterial Detection Using Sensitive Immunological Methods. In Proceedings of the 30th United States-Japan Cooperative Program in Natural Resources (UJNR) Protein Resources Panel, October 15-19, 2001, Tsukuba, Ibaraki, Japan. p. 33-40.
Foodborne Pathogens in Dairy Environments - (Proceedings)
Ravva, S.B., Duffy, B.K., Stanker, L.H., Mandrell, R.E. 2001. Foodborne Pathogens in Dairy Environments. Proceedings of the 30th United States-Japan Cooperative Program in Natural Resources (UJNR) Protein Resources Panel, October 15-19, 2001, Tsukuba, Ibaraki, Japan. p. 64-71.
Last Modified: 12/19/2014
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