<i>Trypanosoma (Megatrypanum) saloboense</i>n. sp. (Kinetoplastida: Trypanosomatidae) parasite of<i>Monodelphis emiliae</i>(Marsupiala: Didelphidae) from Amazonian Brazil

Lainson, Ralph; Silva, F.M.M. Da; Franco, C.M.

doi:10.1051/parasite/2008152099

Cited by 9 publications

(6 citation statements)

References 6 publications

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“…has been documented (Hoare, 1972;Ziccardi and Lourenco-de-Oliveira, 1999;Zintl et al 2000;Lainson et al 2008). Trypomastigote pleomorphism was noted in the present study when comparisons were made of morphometric measurements of T. copemani from koalas with those of T. copemani from Gilbert's potoroo and quokka.…”

Section: Discussionmentioning

confidence: 77%

“…Although the importance of trypomastigote morphology should not be discounted, the utility of delineating trypanosome species based on morphometrics alone is highly questionable as pleomorphism of bloodstream trypomatigotes of numerous T. spp. has been documented (Hoare, 1972; Ziccardi and Lourenco-de-Oliveira, 1999; Zintl et al 2000; Lainson et al 2008). Trypomastigote pleomorphism was noted in the present study when comparisons were made of morphometric measurements of T. copemani from koalas with those of T. copemani from Gilbert's potoroo and quokka.…”

Section: Discussionmentioning

confidence: 99%

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Novel trypanosomeTrypanosoma gillettisp. (Euglenozoa: Trypanosomatidae) and the extension of the host range ofTrypanosoma copemanito include the koala (Phascolarctos cinereus)

et al. 2010

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SUMMARYTrypanosoma irwini was previously described from koalas and we now report the finding of a second novel species, T. gilletti, as well as the extension of the host range of Trypanosoma copemani to include koalas. Phylogenetic analysis at the 18S rDNA and gGAPDH loci demonstrated that T. gilletti was genetically distinct with a genetic distance (±s.e.) at the 18S rDNA locus of 2·7±0·5% from T. copemani (wombat). At the gGAPDH locus, the genetic distance (±s.e.) of T. gilletti was 8·7±1·1% from T. copemani (wombat). Trypanosoma gilletti was detected using a nested trypanosome 18S rDNA PCR in 3/139 (∼2%) blood samples and in 2/29 (∼7%) spleen tissue samples from koalas whilst T. irwini was detected in 72/139 (∼52%) blood samples and T. copemani in 4/139 (∼3%) blood samples from koalas. In addition, naturally occurring mixed infections were noted in 2/139 (∼1·5%) of the koalas tested.

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Section: Discussionmentioning

confidence: 77%

Section: Discussionmentioning

confidence: 99%

Novel trypanosomeTrypanosoma gillettisp. (Euglenozoa: Trypanosomatidae) and the extension of the host range ofTrypanosoma copemanito include the koala (Phascolarctos cinereus)

et al. 2010

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“…Although the importance of trypomastigote morphology should not be discounted, delineating trypanosome species based on morphometrics alone is not reliable, as pleomorphism of bloodstream trypomastigotes of numerous T. spp. has been documented (Hoare, 1972;Ziccardi and Lourençode-Oliveira, 1999;Zintl et al, 2000;Lainson et al, 2008;Austen et al, 2009;McInnes et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Identification of novel trypanosome genotypes in native Australian marsupials

Paparini

Irwin

Warren

et al. 2011

Veterinary Parasitology

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14In the present study, the occurrence and molecular phylogeny of trypanosome parasites were woylies. The detection rate of trypanosome DNA in these two host species was 12.5% and 20%, 22 respectively. 23Phylogenetic analyses based on two loci, indicated that the possum-derived trypanosome 24 isolates were genetically distinct, and most closely related to the Australian marsupial trypanosomes 25 H25 from a kangaroo, and BRA2 from a bush rat. This is the first study to genetically characterise 26 trypanosome isolates from possums.

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“…However, the wide morphobiometric heterogeneity among parasites of the genus Trypanosoma restricts, to some extent, the use of this parameter, although it has been employed as a complementary tool for the differentiation and identification of various species of this genus (Ziccardi and Lourenço-de-Oliveira, 1998), especially the differentiation between T. cruzi and T. rangeli (Sousa et al 2008). In a recent study, elegantly exploring these parameters, Lainson et al (2008) demonstrated the circulation of a new Trypanosoma species of the subgenus Megatrypanum .…”

Section: Discussionmentioning

confidence: 99%

Trypanosoma caninum n. sp. (Protozoa: Kinetoplastida) isolated from intact skin of a domestic dog (Canis familiaris) captured in Rio de Janeiro, Brazil

et al. 2009

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An unknown Trypanosoma species was isolated from an axenic culture of intact skin from a domestic dog captured in Rio de Janeiro, Brazil, which was co-infected with Leishmania (Viannia) braziliensis. Giemsa-stained smears of cultures grown in different media revealed the presence of epimastigotes, trypomastigotes, spheromastigotes, transitional stages, and dividing forms (epimastigotes or spheromastigotes). The highest frequency of trypomastigotes was observed in RPMI (15.2%) and DMEM (9.2%) media containing 5% FCS, with a mean length of these forms of 43.0 and 36.0 mum, respectively. Molecular analysis by sequential application of PCR assays indicated that this trypanosome differs from Trypanosoma cruzi and T. rangeli when specific primers were applied. On the other hand, a PCR strategy targeted to the D7 domain of 24salpha rDNA, using primers D75/D76, amplified products of about 250 bp in that isolate (stock A-27), different from the amplification products obtained with T. cruzi and T. rangeli. This organism differs from T. cruzi mainly by the size of its trypomastigote forms and kinetoplasts and the absence of infectivity for macrophages and triatomine bugs. It is also morphologically distinct from salivarian trypanosomes reported in Brazil. Isoenzyme analysis at 8 loci demonstrated a very peculiar banding pattern clearly distinct from those of T. rangeli and T. cruzi. We conclude that this isolate is a new Trypanosoma species. The name T. caninum is suggested.

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Trypanosoma (Megatrypanum) saloboensen. sp. (Kinetoplastida: Trypanosomatidae) parasite ofMonodelphis emiliae(Marsupiala: Didelphidae) from Amazonian Brazil

Abstract: Summary :Trypanosoma (Megatrypanum) saloboense n. sp., is described in the Brazilian opossum Monodelphis emiliae (Thomas, 1912)

Cited by 9 publications

References 6 publications

Novel trypanosomeTrypanosoma gillettisp. (Euglenozoa: Trypanosomatidae) and the extension of the host range ofTrypanosoma copemanito include the koala (Phascolarctos cinereus)

Novel trypanosomeTrypanosoma gillettisp. (Euglenozoa: Trypanosomatidae) and the extension of the host range ofTrypanosoma copemanito include the koala (Phascolarctos cinereus)

Identification of novel trypanosome genotypes in native Australian marsupials

Trypanosoma caninum n. sp. (Protozoa: Kinetoplastida) isolated from intact skin of a domestic dog (Canis familiaris) captured in Rio de Janeiro, Brazil

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