J R Barta

Summary

Affiliation: University of Guelph
Country: Canada

Publications

  1. ncbi Phylogenetic position of the adeleorinid coccidia (Myzozoa, Apicomplexa, Coccidia, Eucoccidiorida, Adeleorina) inferred using 18S rDNA sequences
    John R Barta
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, N1G 2W1, Ontario, Canada
    J Eukaryot Microbiol 59:171-80. 2012
  2. ncbi Molecular approaches for inferring evolutionary relationships among protistan parasites
    J R Barta
    Department of Pathobiology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
    Vet Parasitol 101:175-86. 2001
  3. ncbi Acceptance of the 2003 Henry Baldwin Ward Medal
    John R Barta
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
    J Parasitol 89:1113-6. 2003
  4. ncbi Partial characterization of a non-proteinaceous, low molecular weight antigen of Eimeria tenella
    J R Barta
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Canada
    Parasitol Res 86:461-6. 2000
  5. ncbi The genus Atoxoplasma (Garnham 1950) as a junior objective synonym of the genus Isospora (Schneider 1881) species infecting birds and resurrection of Cystoisospora (Frenkel 1977) as the correct genus for Isospora species infecting mammals
    J R Barta
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada
    J Parasitol 91:726-7. 2005
  6. ncbi Analysis of infraspecific variation among five strains of Eimeria maxima from North America
    J R Barta
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Ont, Canada
    Int J Parasitol 28:485-92. 1998
  7. ncbi Investigating phylogenetic relationships within the Apicomplexa using sequence data: the search for homology
    J R Barta
    Department of Pathobiology, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
    Methods 13:81-8. 1997
  8. ncbi Chasing coccidia--new tools enter the race
    P C Augustine
    USDA ARS ANRI PBESL, Beltsville, MD 20705, USA
    Trends Parasitol 17:509-11. 2001
  9. ncbi Phylogenetic analysis of coccidia based on 18S rDNA sequence comparison indicates that Isospora is most closely related to Toxoplasma and Neospora
    R A Carreno
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Canada
    J Eukaryot Microbiol 45:184-8. 1998
  10. ncbi A comparison of sporozoite transport after homologous and heterologous challenge in chickens immunized with the Guelph strain or the Florida strain of Eimeria maxima
    S E Beattie
    Department of Pathobiology, University of Guelph, Ontario, Canada
    Parasitol Res 87:116-21. 2001

Detail Information

Publications21

  1. ncbi Phylogenetic position of the adeleorinid coccidia (Myzozoa, Apicomplexa, Coccidia, Eucoccidiorida, Adeleorina) inferred using 18S rDNA sequences
    John R Barta
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, N1G 2W1, Ontario, Canada
    J Eukaryot Microbiol 59:171-80. 2012
    ..We conclude that additional taxon sampling and use of other genetic markers apart from 18S rDNA will be required to better resolve relationships among these parasites...
  2. ncbi Molecular approaches for inferring evolutionary relationships among protistan parasites
    J R Barta
    Department of Pathobiology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
    Vet Parasitol 101:175-86. 2001
    ..For emergent and poorly known parasites, molecular characterization and placement within the broader phylogenetic framework can help predict likely life history traits, including possible or likely definitive hosts...
  3. ncbi Acceptance of the 2003 Henry Baldwin Ward Medal
    John R Barta
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
    J Parasitol 89:1113-6. 2003
  4. ncbi Partial characterization of a non-proteinaceous, low molecular weight antigen of Eimeria tenella
    J R Barta
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Canada
    Parasitol Res 86:461-6. 2000
    ..We propose that this antigenic molecule be designated ET-GL1 to reflect its origin and probable structure (E. tenella glycolipid 1)...
  5. ncbi The genus Atoxoplasma (Garnham 1950) as a junior objective synonym of the genus Isospora (Schneider 1881) species infecting birds and resurrection of Cystoisospora (Frenkel 1977) as the correct genus for Isospora species infecting mammals
    J R Barta
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada
    J Parasitol 91:726-7. 2005
    ..Tetrasporozoic, diplosporocystic oocysts without Stieda bodies in their sporocysts belong to Cystoisospora (Sarcocystidae)...
  6. ncbi Analysis of infraspecific variation among five strains of Eimeria maxima from North America
    J R Barta
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Ont, Canada
    Int J Parasitol 28:485-92. 1998
    ....
  7. ncbi Investigating phylogenetic relationships within the Apicomplexa using sequence data: the search for homology
    J R Barta
    Department of Pathobiology, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
    Methods 13:81-8. 1997
    ..The use of these highly variable regions is critical for determining the branching order of closely related terminal taxa in the phylum Apicomplexa...
  8. ncbi Chasing coccidia--new tools enter the race
    P C Augustine
    USDA ARS ANRI PBESL, Beltsville, MD 20705, USA
    Trends Parasitol 17:509-11. 2001
    ..This meeting was staged in conjunction with the Annual Scientific Meeting of the Australian Society for Parasitology...
  9. ncbi Phylogenetic analysis of coccidia based on 18S rDNA sequence comparison indicates that Isospora is most closely related to Toxoplasma and Neospora
    R A Carreno
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Canada
    J Eukaryot Microbiol 45:184-8. 1998
    ..The other lineage comprises the Sarcocystis spp. which have no proliferative phase in the definitive host and an endogenous phase of sporogony...
  10. ncbi A comparison of sporozoite transport after homologous and heterologous challenge in chickens immunized with the Guelph strain or the Florida strain of Eimeria maxima
    S E Beattie
    Department of Pathobiology, University of Guelph, Ontario, Canada
    Parasitol Res 87:116-21. 2001
    ..The degree of cross-protection afforded by the heterologous strain as measured by sporozoite transport success was not equally reciprocal...
  11. ncbi Molecular phylogeny of the other tissue coccidia: Lankesterella and Caryospora
    J R Barta
    Department of Pathobiology, University of Guelph, Ontario, Canada
    J Parasitol 87:121-7. 2001
    ..This may be a third lineage of coccidian parasites that has independently evolved a unique heteroxenous transmission strategy...
  12. ncbi Differential display analysis of gene expression in two immunologically distinct strains of Eimeria maxima
    S C Basak
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, N1G 2W1, Ontario, Canada
    Parasitol Res 99:28-36. 2006
    ....
  13. ncbi Virus shedding and serum antibody responses during experimental turkey coronavirus infections in young turkey poults
    M H Gomaa
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
    Avian Pathol 38:181-6. 2009
    ..The protection was associated with measurable serum antibody responses to both the nucleocapsid and S1 structural proteins of TCoV that were detectable as early as 1 week post-infection...
  14. ncbi Involvement of CD 8+ and CD 3+ lymphocytes in the transport of Eimeria necatrix sporozoites within the intestinal mucosa of chickens
    S E Beattie
    Department of Pathobiology, University of Guelph, Ontario, Canada
    Parasitol Res 87:405-8. 2001
    ..Smaller numbers were found within deltagamma TCR+ (5%) and alphabeta TCR+ (5%) lymphocytes. No sporozoites were found within CD 4+ or IgM+ lymphocytes at any of the time periods...
  15. ncbi Monoclonal antibodies raised against coccidia and malarial parasites recognize antigenic epitopes found in lankesterellid and adeleorin parasites
    A M Herzenberg
    Department of Zoology, University of Toronto, Ontario, Canada
    J Parasitol 81:543-8. 1995
    ..These gamonts exhibited staining similar to that observed with the L. minima sporozoites. The presence of the cross-reactive epitopes recognized by these MAbs in the same conserved locations suggests that these antigens are homologous...
  16. ncbi Redescription of Neospora caninum and its differentiation from related coccidia
    J P Dubey
    Parasite Biology Laboratory, Beltsville Agricultural Research Center, Animal and Natural Resources Institute, United States Department of Agriculture, Building 1001, BARC East, Beltsville, MD 20705 2350, USA
    Int J Parasitol 32:929-46. 2002
    ..In this article, the authors redescribe the parasite, distinguish it from related coccidia, and provide accession numbers to its type specimens deposited in museums...
  17. ncbi Morphologic changes in the intestine of broiler breeder pullets fed diets naturally contaminated with Fusarium mycotoxins with or without coccidial challenge
    G N Girgis
    Department of Animal and Poultry Science, University of Guelph, Ontario, Canada N1G 2W1
    Avian Dis 54:67-73. 2010
    ..It was concluded that diets contaminated with Fusarium mycotoxins below levels that negatively affect performance could alter intestinal morphology and interfere with intestinal recovery from an enteric coccidial infection...
  18. ncbi Major histocompatibility complex class I- and II-deficient knock-out mice are resistant to primary but susceptible to secondary Eimeria papillata infections
    M L Schito
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Canada
    Parasitol Res 84:394-8. 1998
    ..The mechanism of resistance depends on the immune status of the host and requires the coordinated interaction of both alphabeta+ T-cell subsets for optimal parasite control during subsequent infections...
  19. ncbi Nonspecific immune responses and mechanisms of resistance to Eimeria papillata infections in mice
    M L Schito
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Canada
    Infect Immun 65:3165-70. 1997
    ..Immunity to reinfection does not require IFN-gamma but appears to be mediated, at least in part, by a perforin-dependent mechanism...
  20. ncbi Complete genomic sequence of turkey coronavirus
    M H Gomaa
    Department of Pathobiology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
    Virus Res 135:237-46. 2008
    ..TCoV genome structure and sequence was most similar, but distinct from, avian infectious bronchitis virus (IBV). This is the first complete genome sequence for a TCoV and confirms that TCoV belongs to group III coronaviruses...
  21. ncbi The morphological features of Aegyptianella bacterifera: an intraerythrocytic rickettsia of frogs from Corsica
    S S Desser
    Department of Zoology, University of Toronto, Ontario, Canada
    J Wildl Dis 25:313-8. 1989
    ..The definition of the genus Aegyptianella should be broadened to include rickettsiae measuring up to 5 microns in length prior to division which develop within membrane bound inclusions in erythrocytes of their hosts...