| development of trypanosoma fallisi in the leech, desserobdella picta, in toads (bufo americanus), and in vitro. a light and electron microscopic study. | the development of trypanosoma fallisi of bufo americanus from algonquin park, ontario was studied by light and electron microscopy in blood culture, in its leech vector desserobdella (= batracobdella) picta, and in its toad host. in culture, bloodstream trypomastigotes transformed within one day to elongate epimastigotes which divided into rosettes. these gave rise to amastigotes, spheromastigotes, stumpy and elongate epimastigotes, and slender metacyclic trypomastigotes over a 4- to 6-day peri ... | 2007 | 1994366 |
| phylogenetic position of the giant anuran trypanosomes trypanosoma chattoni, trypanosoma fallisi, trypanosoma mega, trypanosoma neveulemairei, and trypanosoma ranarum inferred from 18s rrna gene sequences. | phylogenetic relationships within the kinetoplastid flagellates were inferred from comparisons of small-subunit ribosomal rna gene sequences. these included 5 new gene sequences, trypanosoma fallisi (2,239 bp), trypanosoma chattoni (2,180 bp), trypanosoma mega (2,211 bp), trypanosoma neveulemairei (2,197 bp), and trypanosoma ranarum (2,203 bp). trees produced using maximum-parsimony and distance-matrix methods (least-squares, neighbor-joining, and maximum-likelihood), supported by strong bootstr ... | 2002 | 12099428 |
| analysis of isolates within species of anuran trypanosomes using random amplified polymorphic dna. | a total of 20 decamer primers were used to generate random applied polymorphic dna (rapd) markers from 5 isolates of trypanosoma fallisi, 3 isolates of t. ranarum, 2 isolates of t. rotatorium, and 2 isolates of t. rotatorium-like trypanosomes in addition to 2 species from the american type culture collection, t. chattoni (atcc 50294) and trypanosoma sp. (atcc 50295). a slight polymorphism was observed among the four isolates of t. fallisi obtained form american toads, bufo americanus, collected ... | 1996 | 8825440 |
| infectivity of cultured trypanosoma fallisi (kinetoplastida) to various anuran species and its evolutionary implications. | trypanosoma fallisi, a hemoflagellate infecting bufo americanus from ontario, was grown in vitro, and metatrypanosomes from the primary culture were inoculated into 4 uninfected test groups from 3 anuran families: bufonidae, hylidae, and ranidae. in vitro-cultured t. fallisi was found to infect b. americanus and to induce transient infections in bufo valliceps and hyla versicolor. the flagellate was not infective to rana clamitans. trypanosoma ranarum was uninfective to the bufonids and hylids t ... | 1991 | 2040964 |
| a light and electron microscopic study of trypanosoma fallisi n. sp. in toads (bufo americanus) from algonquin park, ontario. | trypanosoma fallisi n. sp. is described from bufo americanus in ontario. the parasite was observed in 65 of 94 toads examined. the trypanosomes were pleomorphic with respect to the age of infections, being longer and broader in early infections (during spring and summer) and shorter and more slender during late summer and autumn. they ranged in size from 38-76 microns in body length and 3-8 microns in width, with a free flagellum 6-30 microns long. epizootiological and experimental evidence sugg ... | 2006 | 2359048 |