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                    U.S. DEPARTMENT OF AGRICULTURE
 Animal Disease Research: Pullman, WA
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ARS Home Pacific West Area Pullman, Washington Animal Disease Research People & Locations







Lowell S Kappmeyer
                        Animal Disease Research

                        




                        
                        Geneticist
                        Phone: (509) 335-6059
                        
                        
                        Fax: (509) 335-8328(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)
                            ProjectsControl Strategies for Bovine Babesiosis
                                                    In-House Appropriated
                                                                    (D)Accession Number: 441168Genetic Approaches and Tools to Prevent, Control, and Eradicate Transmissible Spongiform Encephalopathies
                                                    In-House Appropriated
                                                                    (D)Accession Number: 441236Control Strategies for Theileriosis
                                                    In-House Appropriated
                                                                    (D)Accession Number: 441269Identifying Effective Immune Responses and Vaccine Development for Bovine Anaplasmosis
                                                    In-House Appropriated
                                                                    (D)Accession Number: 441274**Publications**
                                                (Clicking on the reprint icon
                                                    Reprint Icon
                                                    will take you to the publication reprint.)Comparison of high throughput RNA sequences between Babesia bigemina and Babesia bovis revealed consistent differential gene expression that is required for the Babesia life cycle in the vertebrate and invertebrate hosts
                                                        

- (Peer Reviewed Journal)Capelli-Peixoto, J., Saelao, P., Johnson, W.C., Kappmeyer, L.S., Reif, K.E., Masterson, H.E., Taus, N.S., Suarez, C.E., Brayton, K.A., Ueti, M.W. 2022. Comparison of high throughput RNA sequences between Babesia bigemina and Babesia bovis revealed consistent differential gene expression that is required for the Babesia life cycle in the vertebrate and invertebrate hosts. Frontiers in Cellular and Infection Microbiology. 12. Article 1093338. https://doi.org/10.3389/fcimb.2022.1093338.Thrombospondin-related anonymous protein (TRAP) family expression by Babesia bovis life stages within the mammalian host and tick vector
                                                        

- (Peer Reviewed Journal)Masterson, H.E., Taus, N.S., Johnson, W.C., Kappmeyer, L.S., Capelli-Peixoto, J., Hussein, H.E., Mousel, M.R., Hernandez-Silva, D.J., Laughery, J.M., Mosqueda, J., Ueti, M.W. 2022. Thrombospondin-related anonymous protein (TRAP) family expression by Babesia bovis life stages within the mammalian host and tick vector. Microorganisms. 10(11). Article 2173. https://doi.org/10.3390/microorganisms10112173.Molecular and serological detection of piroplasms in horses from Nigerian
                                                        

- (Peer Reviewed Journal)Idoko, I.S., Edah, R.E., Adamu, A.M., Machunga-Mambula, S., Okubanjo, O.O., Balogun, E.O., Adamu, S., Johnson, W.C., Kappmeyer, L.S., Mousel, M.R., Ueti, M.W. 2021. Molecular and serological detection of piroplasms in horses from Nigerian. Pathogens. 10(5). Article 508. https://doi.org/10.3390/pathogens10050508.Development of an indirect ELISA to detect equine antibodies to Theileira haneyi
                                                        

- (Peer Reviewed Journal)Bastos, R.G., Sears, K.P., Dinkel, K.D., Kappmeyer, L.S., Ueti, M.W., Knowles, D.P., Fry, L.M. 2021. Development of an indirect ELISA to detect equine antibodies to Theileira haneyi. Pathogens. 10(3). Article 270. https://doi.org/10.3390/pathogens10030270.Transcriptome dataset of Babesia bovis life stages within vertebrate and invertebrate hosts
                                                        

- (Peer Reviewed Journal)Ueti, M.W., Johnson, W.C., Kappmeyer, L.S., Herndon, D.R., Mousel, M.R., Reif, K.E., Taus, N.S., Ifeonu, O.O., Silva, J.C., Suarez, C.E., Brayton, K.A. 2020. Transcriptome dataset of Babesia bovis life stages within vertebrate and invertebrate hosts. Data in Brief. 33. Article 106533. https://doi.org/10.1016/j.dib.2020.106533.Comparative analysis of gene expression between Babesia bovis blood stages and kinetes allowed by improved genome annotation.
                                                        

- (Peer Reviewed Journal)Ueti, M.W., Johnson, W.C., Kappmeyer, L.S., Herndon, D.R., Mousel, M.R., Reif, K.E., Taus, N.S., Ifeonu, O.O., Silva, J.C., Suarez, C.E., Brayton, K.A. 2020. Comparative analysis of gene expression between Babesia bovis blood stages and kinetes allowed by improved genome annotation.. International Journal for Parasitology. 51(2-3):123-136. https://doi.org/10.1016/j.ijpara.2020.08.006.Identification and antigenicity of the Babesia caballi spherical body protein 4 (SBP4)
                                                        

- (Peer Reviewed Journal)Mahmoud, M.S., Kandil, O.M., Abu El-Ezz, N.T., Hendawy, S.H.M., Elsawy, B.S.M., Knowles, D.P., Bastos, R.G., Kappmeyer, L.S., Laughery, J.M., Alzan, H.F., Suarez, C.E. 2020. Identification and antigenicity of the Babesia caballi spherical body protein 4 (SBP4). Parasites & Vectors. 13. Article 369. https://doi.org/10.1186/s13071-020-04241-9.Molecular detection of Theileria species and Babesia caballi from horses in Nigeria
                                                        

- (Peer Reviewed Journal)Philip, M.W., Kappmeyer, L.S., Johnson, W.C., Kudi, C.A., Oluyinka, O.O., Balogun, E.O., Richard, E.E., Onoja, E., Sears, K.P., Ueti, M.W. 2020. Molecular detection of Theileria species and Babesia caballi from horses in Nigeria. Parasitology Research. 119:2955-2963. https://doi.org/10.1007/s00436-020-06797-y.Equid infective Theileria cluster in distinct 18S rRNA gene clades comprising multiple taxa with unusually broad mammalian host ranges
                                                        

- (Peer Reviewed Journal)Bishop, R.P., Kappmeyer, L.S., Onzere, C.K., Odongo, D.O., Githaka, N., Sears, K.P., Knowles, D.P., Fry, L.M. 2020. Equid infective Theileria cluster in distinct 18S rRNA gene clades comprising multiple taxa with unusually broad mammalian host ranges. Parasites & Vectors. 13. Article 261. https://doi.org/10.1186/s13071-020-04131-0.Infection dynamics of Theileria equi and Theileria haneyi, a newly discovered apicomplexan of the horse
                                                        

- (Peer Reviewed Journal)Sears, K.P., Kappmeyer, L.S., Wise, L.N., Siva, M., Ueti, M.W., White, S.N., Reif, K.E., Knowles, D.P. 2019. Infection dynamics of Theileria equi and Theileria haneyi, a newly discovered apicomplexan of the horse. Veterinary Parasitology. 271:68-75. https://doi.org/10.1016/j.vetpar.2019.06.009.Evolution and diversity of the EMA families of the divergent equid parasites, Theileria equi and T. haneyi
                                                        

- (Peer Reviewed Journal)Wise, L.N., Kappmeyer, L.S., Knowles, D.P., White, S.N. 2019. Evolution and diversity of the EMA families of the divergent equid parasites, Theileria equi and T. haneyi. Infection, Genetics and Evolution. 68:153-160. https://doi.org/10.1016/j.meegid.2018.12.020.Discovery of a novel species Theileria haneyi n. sp. infective to equids highlights exceptional genomic diversity within the genus Theileria: implications for apicomplexan parasite surveillance
                                                        

- (Peer Reviewed Journal)Knowles, D.P., Kappmeyer, L.S., Haney, D., Herndon, D.R., Fry, L.M., Munro, J.B., Sears, K., Ueti, M.W., Wise, L.N., Silva, M., Schneider, D.A., Grause, J., White, S.N., Trentina, K., Bishop, R., Odongo, D.O., Pelzel-McCluske, A.M., Scoles, G.A., Mealey, R.H., Silva, J.C. 2018. Discovery of a novel species Theileria haneyi n. sp. infective to equids highlights exceptional genomic diversity within the genus Theileria: implications for apicomplexan parasite surveillance. International Journal for Parasitology. 48(9-10):127-137. https://doi.org/10.1016/j.ijpara.2018.03.010.Verification of post-chemotherapeutic clearance of theileria equi through concordance of nested PCR and immunoblot

- (Peer Reviewed Journal)Wise, L.N., Kappmeyer, L.S., Dasilva, M., White, S.N., Grause, J.F., Knowles Jr, D.P. 2017. Verification of post-chemotherapeutic clearance of theileria equi through concordance of nested PCR and immunoblot. Ticks and Tick Borne Diseases. https://doi.org/10.1016/j.ttbdis.2017.08.007.Analysis of stage-specific protein expression during babesia bovis development within female rhipicephalus microplus

- (Peer Reviewed Journal)Johnson, W.C., Taus, N.S., Reif, K.E., Bohaliga, G., Kappmeyer, L.S., Ueti, M.W. 2017. Analysis of stage-specific protein expression during babesia bovis development within female rhipicephalus microplus. Journal of Proteome Research. 16(3):1327-1338.Expression of 6-Cys gene superfamily defines babesia bovis sexual stage development within rhipicephalus microplus

- (Peer Reviewed Journal)Alzan, H.F., Lau, A., Knowles, D.P., Herndon, D.R., Ueti, M.W., Scoles, G.A., Kappmeyer, L.S., Suarez, C.E. 2016. Expression of 6-Cys gene superfamily defines babesia bovis sexual stage development within rhipicephalus microplus. PLoS One. doi:10.1371/journal.pone.0163791.Assessment of theileria equi and babesia caballi infections in equine populations in Egypt by molecular, serological and hematological approaches

- (Peer Reviewed Journal)Mahmoud, M.S., Abu El-Ezz, N.T., Abdel-Shafy, S., Nassar, S.A., El Namaky, A.H., Khalil, W.B., Knowles Jr, D.P., Kappmeyer, L.S., Silva, M.G., Suarez, C.E. 2016. Assessment of theileria equi and babesia caballi infections in equine populations in Egypt by molecular, serological and hematological approaches. Parasites & Vectors. doi: 10.1186/s13071-016-1539-9.Superinfection exclusion of the ruminant pathogen anaplasma marginale in the tick vector is dependent on time between exposures to the strains

- (Peer Reviewed Journal)Noh, S.M., Dark, M.J., Reif, K.E., Ueti, M.W., Kappmeyer, L.S., Scoles, G.A., Palmer, G.H., Brayton, K.A. 2016. Superinfection exclusion of the ruminant pathogen anaplasma marginale in the tick vector is dependent on time between exposures to the strains. Applied and Environmental Microbiology. 82(11):3217-3124.Theileria equi isolates vary in susceptibility to imidocarb dipropionate but demonstrate uniform in vitro susceptibility to a bumped kinase inhibitor

- (Peer Reviewed Journal)Hines, S.A., Ramsay, J.D., Kappmeyer, L.S., Lau, A.O., Ojo, K.K., Vanvoorhis, W., Knowles Jr, D.P., Mealey, R.H. 2015. Theileria equi isolates vary in susceptibility to imidocarb dipropionate but demonstrate uniform in vitro susceptibility to a bumped kinase inhibitor. Parasites & Vectors. doi: 10.1186/s13071-014-0611-6.Review of equine piroplasmosis

- (Research Technical Update)Wise, L.N., Kappmeyer, L.S., Mealy, R.H., Knowles Jr, D.P. 2013. Review of equine piroplasmosis. Journal of Veterinary Internal Medicine. 27(6):1334-46.Improved diagnostic performance of a commercial anaplasma antibody competitive enzyme-linked immunosorbent assay using recombinant major surface protein 5–glutathione S-transferase fusion protein as
antigen

- (Peer Reviewed Journal)Chung, C., Wilson, C., B. Mudiyanselage, C.B., Kang, E., Adams, S.D., Kappmeyer, L.S., Knowles Jr, D.P., Mcelwain, T., Evermann, J., Ueti, M.W., Scoles, G.A., Lee, S.S., Mcguire, T.C. 2014. Improved diagnostic performance of a commercial anaplasma antibody competitive enzyme-linked immunosorbent assay using recombinant major surface protein 5–glutathione S-transferase fusion protein as antigen. Journal of Veterinary Diagnostic Investigation. 26(1):61-71.Serum antibodies from a subset of horses positive for babesia caballi by competitive enzyme-linked immunosorbent assay demonstrate a protein recognition pattern that is not consistent with infection

- (Peer Reviewed Journal)Awinda, P.O., Mealey, R.H., Williams, L.B., Conrad, P.A., Packham, A.E., Reif, K.E., Grause, J.F., Pelzel-Mccluskey, A.M., Chung, C., Reginaldo, B., Kappmeyer, L.S., Howe, D.K., Ness, S.L., Knowles Jr, D.P., Ueti, M.W. 2013. Serum antibodies from a subset of horses positive for babesia caballi by competitive enzyme-linked immunosorbent assay demonstrate a protein recognition pattern that is not consistent with infection. Clinical and Vaccine Immunology. 20(11):1752-1757.Diagnosis of theileria equi infections in horses in the Azores using cELISA and nested PCR

- (Peer Reviewed Journal)Baptista, C., Lopes, M.S., Tavares, A.C., Rojer, H., Kappmeyer, L.S., Mendonça, D., Da Câmara Machado, A. 2013. Diagnosis of theileria equi infections in horses in the Azores using cELISA and nested PCR. Ticks and Tick Borne Diseases. 4(3):242-245.Genetic characterization of theileria equi infecting horses in North America: evidence for a limited source of U.S. introductions

- (Peer Reviewed Journal)Hall, C.M., Busch, J.D., Palma-Cagle, K.A., Scoles, G.A., Ueti, M.W., Kappmeyer, L.S., Wagner, D.M. 2013. Genetic characterization of theileria equi infecting horses in North America: evidence for a limited source of U.S. introductions. International Journal for Parasitology. doi:10.1186/PV.1756-3305-6-35.Comparative genomic analysis and phylogenetic position of Theileria equi
                                                        

- (Peer Reviewed Journal)Kappmeyer, L.S., Thiagarajan, M., Herndon, D.R., Ramsay, J.D., Caler, E., Djikeng, A., Gillespie, J.J., Lau, A.O., Roalson, E.H., Silva, J.C. 2012. Comparative genomic analysis and phylogenetic position of Theileria equi. Biomed Central (BMC) Genomics. BMC Genomics 2012, 13:603.Efficacy of imidocarb dipropionate in the elimination of Theileria equi in experimentally infected horses

- (Peer Reviewed Journal)Grause, J.F., Ueti, M.W., Nelsona, J.T., Knowles Jr, D.P., Kappmeyer, L.S., Bunn, T.O. 2012. Efficacy of imidocarb dipropionate in the elimination of Theileria equi in experimentally infected horses. The Veterinary Journal. 10.1016/j.tvjl.2012.10.025.Re-emergence of the apicomplexan theileria equi in the United States: Elimination of persistent infection and transmission risk

- (Peer Reviewed Journal)Ueti, M.W., Mealey, R.H., Kappmeyer, L.S., White, S.N., Kumpula-Mcwhirter, N., Pelzel, A.M., Grause, J.F., Bunn, T.O., Schwartz, A., Traub-Dargatz, J.L. 2012. Re-emergence of the apicomplexan theileria equi in the United States: Elimination of persistent infection and transmission risk. PloSONE 7(9):e44713.In vitro activity of ponazuril against Theileria equi

- (Peer Reviewed Journal)Wise, L.N., Ueti, M.W., Kappmeyer, L.S., Hines, M.T., White, S.N., Davis, W., Knowles Jr, D.P. 2012. In vitro activity of ponazuril against Theileria equi. Veterinary Parasitology. 185(2-4):282-5.Protective effects of passively transferred merozoite-specific antibodies against Theileria equi in horses with severe combined immunodeficiency

- (Peer Reviewed Journal)Mealey, R.H., Kappmeyer, L.S., Ueti, M.W., Wagner, B., Knowles Jr, D.P. 2011. Protective effects of passively transferred merozoite-specific antibodies against Theileria equi in horses with severe combined immunodeficiency. Clinical and Vaccine Immunology. 19(1):100-4.Bm86 midgut protein sequence variation in south Texas cattle fever ticks

- (Peer Reviewed Journal)Freeman, J.M., Davey, R.B., Kappmeyer, L.S., Kammlah, D.M., Olafson, P.U. 2010. Bm86 midgut protein sequence variation in south Texas cattle fever ticks. Parasites & Vectors. 3;3:101.A Babesia bovis gene syntenic to Theileria parva p67 is expressed in blood and tick stage parasites

- (Peer Reviewed Journal)Freeman, J.M., Kappmeyer, L.S., Ueti, M.W., Mcelwain, T.F., Baszler, T.V., Echaide, I., Nene, V.M., Knowles Jr, D.P. 2010. A Babesia bovis gene syntenic to Theileria parva p67 is expressed in blood and tick stage parasites. Veterinary Parasitology. 173(3-4):211-218.blaCMY-2-positive IncA/C plasmids from escherichia coli and salmonella enterica are a distinct component of a larger lineage of plasmids

- (Peer Reviewed Journal)Call, D.R., Singer, R.S., Meng, D., Broschat, S.L., Orfe, L.H., Anderson, J.M., Herndon, D.R., Kappmeyer, L.S., Daniels, J.B., Besser, T.E. 2010. blaCMY-2-positive IncA/C plasmids from escherichia coli and salmonella enterica are a distinct component of a larger lineage of plasmids. Antimicrobial Agents and Chemotherapy. 54(2):590-6.Imidocarb dipropionate clears persistent Babesia caballi infection with elimination of transmission potential

- (Peer Reviewed Journal)Schwint, O.N., Ueti, M.W., Palmer, G.H., Kappmeyer, L.S., Hines, M.T., Cordes, R.T., Knowles Jr, D.P., Scoles, G.A. 2009. Imidocarb dipropionate clears persistent Babesia caballi infection with elimination of transmission potential. Antimicrobial Agents and Chemotherapy. 53(10):4327-4332.Conservation in the face of diversity: multistrain analysis of an intracellular bacterium

- (Peer Reviewed Journal)Dark, M.J., Herndon, D.R., Kappmeyer, L.S., Gonzales, M.P., Nordeen, E., Palmer, G.H., Knowles Jr, D.P., Brayton, K.A. 2009. Conservation in the face of diversity: multistrain analysis of an intracellular bacterium. Biomed Central (BMC) Genomics. 10:16.Persistently Infected Horses Are Reservoirs for Intrastadial Tick-Borne Transmission of the Apicomplexan Parasite Babesia equi

- (Peer Reviewed Journal)Ueti, M.W., Palmer, G.H., Scoles, G.A., Kappmeyer, L.S., Knowles Jr, D.P. 2008. Persistently Infected Horses Are Reservoirs for Intrastadial Tick-Borne Transmission of the Apicomplexan Parasite Babesia equi. Infection and Immunity. 76(8):3525-3529.Transmission of Babesia caballi by Dermacentor nitens (Acari: Ixodidae) Is Restricted to One Generation in the Absense of Alimentary Reinfection on a Susceptible Equine Host

- (Peer Reviewed Journal)Schwint, N.O., Knowles Jr, D.P., Ueti, M.W., Kappmeyer, L.S., Scoles, G.A. 2008. Transmission of Babesia caballi by Dermacentor nitens (Acari: Ixodidae) Is Restricted to One Generation in the Absense of Alimentary Reinfection on a Susceptible Equine Host. Journal of Medical Entomology. 45(6):1152-1155.Genomic analysis of Ovis aries (Ovar)MHC Class IIa loci

- (Peer Reviewed Journal)Hoesing, L.M., White, S.N., Kappmeyer, L.S., Herndon, D.R., Knowles Jr, D.P. 2008. Genomic analysis of Ovis aries (Ovar)MHC Class IIa loci. Immunogenetics. 60(3):167-176.Genome Sequence of Babesia bovis and Camparative Analysis of Apicomplexan Hemoprotozoa

- (Peer Reviewed Journal)Brayton, K., Lau, A.O., Herndon, D.R., Hannick, L., Kappmeyer, L.S., Berens, S.J., Bidwell, S.L., Brown, W.C., Crabtree, J., Fadrosh, D., Feldblum, T., Forberger, H.A., Haas, B.J., Howell, J.M., Khouri, H., Koo, H., Mann, D.J., Norimine, J., Paulsen, I.T., Radune, D., Ren, Q., Smith, R.K., Suarez, C.E., White, O., Wortman, J.R., Knowles Jr, D.P., Mcelwain, T.F., Nene, V.M. 2007. Genome Sequence of Babesia bovis and Camparative Analysis of Apicomplexan Hemoprotozoa. PLoS Pathogens. 3(10):1401-1413.DEVELOPMENT OF SPECIFIC IMMUNOGLOBULIN GA (IGGA) AND IGGB ANTIBODIES CORRELATES WITH CONTROL OF PARASITEMIA IN BABESIA EQUI INFECTION

- (Peer Reviewed Journal)Cunha, C.W., Mcguire, T.C., Kappmeyer, L.S., Hines, S.A., Lopez, A., Dellagostin, O.A., Knowles Jr, D.P. 2006. Development of Specific Immunoglobulin Ga (IgGa) and IgGb Antibodies Correlates with Control of Parasitemia in Babesia equi Infection. Clinical and Vaccine Immunology. 13(2):297-300.ABILITY OF THE VECTOR TICK BOOPHILUS MICROPLUS TO ACQUIRE AND TRANSMIT BABESIA EQUI FOLLOWING FEEDING ON CHRONICALLY INFECTED HORSES WITH LOW LEVEL PARASITEMIA

- (Peer Reviewed Journal)Ueti, M.W., Palmer, G.H., Kappmeyer, L.S., Statdfield, M., Scoles, G.A., Knowles Jr, D.P. 2005. Ability of the Vector Tick Boophilus microplus To Acquire and Transmit Babesia equi following Feeding on Chronically Infected Horses with Low-Level Parasitemia. Journal of Clinical Microbiology. 43(8):3755-3759.COMPLETE GENOME SEQUENCING OF ANAPLASMA MARGINALE REVEALS THAT THE SURFACE IS SKEWED TO TWO SUPERFAMILIES OF OUTER MEMBRANE PROTEINS

- (Peer Reviewed Journal)Brayton, K.A., Kappmeyer, L.S., Herndon, D.R., Dark, M.J., Tibbals, D.L., Palmer, G.H., Mcguire, T.C., Knowles Jr, D.P. 2005. Complete genome sequencing of anaplasma marginale reveals that the surface is skewed to two superfamilies of outer membrane proteins. Proceedings of the National Academy of Sciences. 102(3):844-849.EXPRESSION OF EQUI MEROZOITE ANTIGEN 2 DURING DEVELOPMENT OF BABESIA EQUI IN THE MIDGUT AND SALIVARY GLAND OF THE VECTOR TICK BOOPHILUS MICROPLUS

- (Peer Reviewed Journal)Ueti, M.W., G.H. Palmer, L.S. Kappmeyer, G.A. Scoles and D.P. Knowles. 2003. Expression of Equi Merozoite Antigen 2 during Development of Babesia equi in the Midgut and Salivary Gland of the vector tick Boophilus microplus. J. Clin. Micro. 41(12):5803-5809.CONFORMATIONAL DEPENDENCE AND CONSERVATION OF AN IMMUNODOMINANT EPITOPE WITHIN THE BABESIA EQUI ERYTHROCYTE-STAGE SURFACE PROTEIN EQUI MEROSOITE ANTIGEN 1

- (Peer Reviewed Journal)Clinical & Diagnostic Lab. Immunol.9(6)2002 1301-1306DETECTION OF EQUINE ANTIBODIES TO BABESIA CABALLI BY RECOMBINANT B. CABALLIRHOPTRY-ASSOCIATED PROTEIN 1 IN COMPETITIVE-INHIBITION ENZYME-LINKED       IMMUNOSORBENT ASSAY

- (Peer Reviewed Journal)
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