Atypical Toxoplasma gondii strain from a free-living jaguar (Panthera onca) in French Guiana.
Like domestic cats, wild felids are involved in the complete infective cycle of Toxoplasma gondii because they can host in their gastrointestinal tract sexually mature parasites and shed infective oocysts in their feces. We report, to our knowledge, the first isolation and molecular characterization of a T. gondii strain from the heart tissue of a free-living jaguar (Panthera onca) in French Guiana. Sequencing at six polymorphic markers indicated that the jaguar isolate had an atypical genotype, including an allele at TgM-A previously found only in isolates from South America, and an allele at GRA6, which was previously reported only in Californian sea otter isolates. These findings are consistent with the recent description of atypical T. gondii strains involved in severe toxoplasmoses in immunocompetent patients in French Guiana that seemed to be linked to a neotropical forest-based cycle involving wild cats and their prey.
Demar
M
M
Parasitology-Mycology Unit, Cayenne Hospital, Equipe EA 3593, Faculty of Medicine, University of West Indies, Cayenne, French Guiana. mdemar@yahoo.com
Ajzenberg
D
D
Serrurier
B
B
Dardé
M L
ML
Carme
B
B
D000818:Animals; D000913:Antibodies, Protozoan / Q000032:analysis; D000953:Antigens, Protozoan / Q000235:genetics*; D001483:Base Sequence; D016054:DNA, Protozoan / Q000737:chemistry; D005616:French Guiana; D005838:Genotype; D006321:Heart / Q000469:parasitology*; D008297:Male; D051379:Mice; D018895:Microsatellite Repeats / Q000235:genetics*; D008969:Molecular Sequence Data; D046009:Panthera / Q000469:parasitology*; D011110:Polymorphism, Genetic / Q000235:genetics; D015800:Protozoan Proteins / Q000235:genetics*; D016415:Sequence Alignment; D014122:Toxoplasma / Q000235:genetics* / Q000302:isolation & purification / Q000472:pathogenicity
D000913:Antibodies, Protozoan; D000953:Antigens, Protozoan; D016054:DNA, Protozoan; C095047:GRA6 protein, Toxoplasma gondii; D015800:Protozoan Proteins