Comparative studies on the ultrastructural morphology of kinetoplasts of trypanosomes belonging to the subgenus Schizotrypanum have been made. Three isolates of Trypanosoma vespertilionis and two strains of Trypanosoma dionisii derived from European bats were tested. Comparison was made also with two isolates from Brasilian bats characterized as T. cruzi and two strains which were derived from two patients suffering from Chagas' disease. In the epimastigote culture form of T. cruzi a typical configuration of kDNA becomes obvious, appearing as a central band at the beginning of cell division. It was investigated whether this morphological character can be used in differentiating between bat-trypanosomes and T. cruzi and on the species characterization of bat-trypanosomes. The central band of kDNA could be demonstrated in all cases of the trypanosomes examined. The special configuration of kDNA makes it possible to distinguish exactly between trypanosomes of the subgenus Schizotrypanum and other trypanosomes. Nevertheless this pecularity alone is not sufficient for characterizing species of that subgenus.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/BF00926558 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
"Visiting old, learn new": taxonomical overview of chiropteran trypanosomes from the morphology to the genes.
Parasitol Res
March 2022
Department of Microbiology, Parasitology and Biotechnology, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania.
Bats (the order Chiroptera) account for more than 20% of all mammalian species in the world; remarkably, they are the only mammals capable of true and sustained flight using their wing-like forelimbs. Since the beginning of the twentieth century, various morphotypes (or genotypes in the last decade) of haemoflagellates in the genus Trypanosoma (Euglenozoa: Kinetoplastea: Trypanosomatidae) have been reported worldwide in the blood of bats. Of note, the latent nature of chiropteran trypanosome infection with low levels of parasitaemia, together with the apparent morphological variation of the bloodstream forms related to phenotypical plasticity and the morphological resemblance of different parasite species, has hampered the taxonomic classification of bat trypanosomes based on morphological criteria.
View Article and Find Full Text PDFFirst report of (Trypanosomatidae) identified in Australia.
Parasitology
December 2020
School of Veterinary Medicine, Murdoch University, Perth, WA6150, Australia.
Article Synopsis
- Trypanosomes are parasites that can infect various vertebrates and this study focuses on their presence in Australian bats, aiming to expand knowledge on their biodiversity.
- Researchers analyzed 86 blood samples from seven species of microbats in Western Australia, identifying Trypanosoma dionisii in five native species and discovering two new genotypes, Aus 1 and Aus 2.
- This study marks the first report of T. dionisii in Australia and contributes important data to the global understanding of bat trypanosomes.
The correct subgeneric name of Trypanosoma rangeli Tejera, 1920 (Euglenozoa: Trypanosomatidae), a human-infective endoparasite of neotropical mammals.
Zootaxa
May 2018
Departamento de Biología, Facultad de Ciencias, Universidad de Los Andes, Mérida 05101, Venezuela.
Trypanosoma rangeli Tejera, 1920 is peculiar in being transmitted to mammal hosts through the bite of triatomine bugs. For this reason, it has been placed in its own subgenus, Tejeraia Añez, 1982. This name is a junior homonym of Tejeraia Díaz-Ungría, 1963, used for the roundworm Tejeraia mediospiralis (Molin, 1860).
View Article and Find Full Text PDFFirst record of Trypanosoma dionisii of the T. cruzi clade from the Eastern bent-winged bat (Miniopterus fuliginosus) in the Far East.
Parasitol Res
March 2018
Laboratory of Parasitology, United Graduate School of Veterinary Science, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515, Japan.
Chiropteran mammals worldwide harbour trypanosomes (Euglenozoa: Kinetoplastea: Trypanosomatida) of the subgenus 'Schizotrypanum' in the classical sense. Latterly, these trypanosomes have been referred to as members of the 'Trypanosoma cruzi clade' as their phylogenetic relationships, structure and life cycle conform to T. cruzi, parasitising various terrestrial mammals as well as humans in Latin America.
View Article and Find Full Text PDFCytochrome c oxidase subunit 1 gene as a DNA barcode for discriminating Trypanosoma cruzi DTUs and closely related species.
Parasit Vectors
October 2017
Laboratory of Trypanosomatid Biology, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil.
Background: The DNA barcoding system using the cytochrome c oxidase subunit 1 mitochondrial gene (cox1 or COI) is highly efficient for discriminating vertebrate and invertebrate species. In the present study, we examined the suitability of cox1 as a marker for Trypanosoma cruzi identification from other closely related species. Additionally, we combined the sequences of cox1 and the nuclear gene glucose-6-phosphate isomerase (GPI) to evaluate the occurrence of mitochondrial introgression and the presence of hybrid genotypes.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!