Trypanosoma culicavium sp. nov., an avian trypanosome transmitted by Culex mosquitoes
Language English Country Great Britain, England Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
- MeSH
- Culex parasitology MeSH
- Phylogeny MeSH
- Genes, rRNA MeSH
- DNA, Ribosomal Spacer chemistry genetics MeSH
- Microscopy MeSH
- Molecular Sequence Data MeSH
- DNA, Protozoan chemistry genetics MeSH
- Birds parasitology MeSH
- DNA, Ribosomal chemistry genetics MeSH
- RNA, Protozoan genetics MeSH
- RNA, Ribosomal genetics MeSH
- Sequence Analysis, DNA MeSH
- Cluster Analysis MeSH
- Trypanosoma classification genetics isolation & purification pathogenicity MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- DNA, Ribosomal Spacer MeSH
- DNA, Protozoan MeSH
- DNA, Ribosomal MeSH
- RNA, Protozoan MeSH
- RNA, Ribosomal MeSH
- RNA, ribosomal, 26S MeSH Browser
A novel avian trypanosome, Trypanosoma culicavium sp. nov., isolated from Culex mosquitoes, is described on the basis of naturally and experimentally infected vectors and bird hosts, localization in the vector, morphological characters and molecular data. This study provides the first comprehensive description of a trypanosome species transmitted by mosquitoes, in which parasites form plugs and rosettes on the stomodeal valve. Trypanosomes occurred as long epimastigotes and short trypomastigotes in vectors and culture and as long trypomastigotes in birds. Transmission of parasites to bird hosts was achieved exclusively by ingestion of experimentally infected Culex mosquito females by canaries (Serinus canaria), but not by Japanese quails (Coturnix japonica), nor by the bite of infected vectors, nor by ingestion of parasites from laboratory cultures. Transmission experiments and the identity of isolates from collared flycatchers (Ficedula albicollis) and Culex mosquitoes suggests that the natural hosts of T. culicavium are insectivorous songbirds (Passeriformes). Phylogenetic analyses of small-subunit rRNA and glycosomal glyceraldehyde-3-phosphate dehydrogenase gene sequences demonstrated that T. culicavium sp. nov. is more related to Trypanosoma corvi than to other avian trypanosomes (e.g. Trypanosoma avium and Trypanosoma bennetti).
References provided by Crossref.org
Trypanosoma tertium n. sp.: prevalences in natural hosts and development in the mosquito vector
Avian Louse Flies and Their Trypanosomes: New Vectors, New Lineages and Host-Parasite Associations
Trypanosomes of the Trypanosoma theileri Group: Phylogeny and New Potential Vectors
Euglenozoa: taxonomy, diversity and ecology, symbioses and viruses
Trypanosomatid parasites in Austrian mosquitoes
Biting midges (Ceratopogonidae) as vectors of avian trypanosomes
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