Entomological Study on Transmission of Avian Malaria Parasites in a Zoological Garden in Japan: Bloodmeal Identification and Detection of Avian Malaria Parasite DNA From Blood-Fed Mosquitoes

2011 ◽  
Vol 48 (3) ◽  
pp. 600-607 ◽  
Author(s):  
Hiroko Ejiri ◽  
Yukita Sato ◽  
Kyeong-Soon Kim ◽  
Tatsuko Hara ◽  
Yoshio Tsuda ◽  
...  
Keyword(s):  
Malaria Parasite ◽  
Avian Malaria ◽  
Zoological Garden ◽  
Malaria Parasites ◽  
Avian Malaria Parasite ◽  
Avian Malaria Parasites ◽  
Bloodmeal Identification

Prevalence of avian malaria parasite in mosquitoes collected at a zoological garden in Japan

2009 ◽  
Vol 105 (3) ◽  
pp. 629-633 ◽  
Author(s):  
Hiroko Ejiri ◽  
Yukita Sato ◽  
Risa Sawai ◽  
Emi Sasaki ◽  
Rei Matsumoto ◽  
...  
Keyword(s):  
Malaria Parasite ◽  
Avian Malaria ◽  
Zoological Garden ◽  
Avian Malaria Parasite

Species limits in avian malaria parasites (Haemosporida): how to move forward in the molecular era

Parasitology ◽  
2014 ◽  
Vol 141 (10) ◽  
pp. 1223-1232 ◽  
Author(s):  
DIANA C. OUTLAW ◽  
ROBERT E. RICKLEFS
Keyword(s):  
Dna Sequences ◽  
Avian Malaria ◽  
Sequence Data ◽  
Sequence Similarity ◽  
Mitochondrial Cytochrome ◽  
Malaria Parasites ◽  
Avian Malaria Parasite ◽  
Molecular Information ◽  
Near Term ◽  
Avian Malaria Parasites

SUMMARYDelimiting species of malaria parasites (Haemosporida) has become increasingly problematic as new lineages of parasites are identified solely by molecular information, particularly mitochondrial cytochrome b sequence data. In this review, we highlight some of the issues, both historical and contemporary, that have hindered the development of objective criteria to diagnose, delimit and define species of haemosporidians. Defining species is not the focal interest of most researchers, most of whom merely wish to determine whether lineages identified in their samples match those of other researchers, and if so, where and in which host species. Rather than revisiting all the issues with respect to delimiting and naming species, we instead focus on finding a practical near-term resolution to the ‘species problem’ that utilizes the community's largest resource: mitochondrial cytochrome b DNA sequences. We recommend a standardized procedure to ‘tag’ these sequences, based on per cent sequence similarity, that will allow researchers to directly assess the novelty, known hosts and geographic distribution of avian malaria parasite lineages.

scholarly journals The transcriptome of the avian malaria parasite Plasmodium ashfordi displays host-specific gene expression

2016 ◽  
Author(s):  
Elin Videvall ◽  
Charlie K. Cornwallis ◽  
Dag Ahrén ◽  
Vaidas Palinauskas ◽  
Gediminas Valkiūnas ◽  
...  
Keyword(s):  
Gene Expression ◽  
Malaria Parasite ◽  
Avian Malaria ◽  
Molecular Mechanisms ◽  
Gene Evolution ◽  
Expression Profiles ◽  
Specific Gene ◽  
Malaria Parasites ◽  
Specific Gene Expression ◽  
Avian Malaria Parasite

AbstractMalaria parasites (Plasmodium spp.) include some of the world’s most widespread and virulent pathogens. Our knowledge of the molecular mechanisms these parasites use to invade and exploit hosts other than mice and primates is, however, extremely limited. It is therefore imperative to characterize transcriptome-wide gene expression from non-model malaria parasites and how this varies across host individuals. Here, we used high-throughput Illumina RNA-sequencing on blood from wild-caught Eurasian siskins experimentally infected with a clonal strain of the avian malaria parasite Plasmodium ashfordi (lineage GRW2). By using a multi-step approach to filter out host transcripts, we successfully assembled the blood-stage transcriptome of P. ashfordi. A total of 11 954 expressed transcripts were identified, and 7 860 were annotated with protein information. We quantified gene expression levels of all parasite transcripts across three hosts during two infection stages – peak and decreasing parasitemia. Interestingly, parasites from the same host displayed remarkably similar expression profiles during different infection stages, but showed large differences across hosts, indicating that P. ashfordi may adjust its gene expression to specific host individuals. We further show that the majority of transcripts are most similar to the human parasite Plasmodium falciparum, and a large number of red blood cell invasion genes were discovered, suggesting evolutionary conserved invasion strategies between mammalian and avian Plasmodium. The transcriptome of P. ashfordi and its host-specific gene expression advances our understanding of Plasmodium plasticity and is a valuable resource as it allows for further studies analysing gene evolution and comparisons of parasite gene expression.

scholarly journals Assessing Diversity, Plasmodium Infection and Blood Meal Sources in Mosquitoes (Diptera: Culicidae) from a Brazilian Zoological Park with Avian Malaria Transmission

Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 215
Author(s):  
Lilian de Oliveira Guimarães ◽  
Roseli França Simões ◽  
Carolina Romeiro Fernandes Chagas ◽  
Regiane Maria Tironi de Menezes ◽  
Fabiana Santos Silva ◽  
...  
Keyword(s):  
Blood Meal ◽  
Avian Malaria ◽  
Mosquito Species ◽  
Plasmodium Species ◽  
Sao Paulo ◽  
São Paulo ◽  
Malaria Parasites ◽  
Ecological Relationships ◽  
Lack Of Information ◽  
Avian Malaria Parasites

Avian malaria parasites are widespread parasites transmitted by Culicidae insects belonging to different genera. Even though several studies have been conducted recently, there is still a lack of information about potential vectors of Plasmodium parasites, especially in Neotropical regions. Former studies with free-living and captive animals in São Paulo Zoo showed the presence of several Plasmodium and Haemoproteus species. In 2015, a pilot study was conducted at the zoo to collect mosquitoes in order to find out (i) which species of Culicidae are present in the study area, (ii) what are their blood meal sources, and (iii) to which Plasmodium species might they be potential vectors. Mosquitoes were morphologically and molecularly identified. Blood meal source and haemosporidian DNA were identified using molecular protocols. A total of 25 Culicidae species were identified, and 6 of them were positive for Plasmodium/Haemoproteus DNA. Ten mosquito species had their source of blood meal identified, which were mainly birds, including some species that were positive for haemosporidian parasites in the former study mentioned. This study allowed us to expand the list of potential vectors of avian malaria parasites and to improve our knowledge of the evolutionary and ecological relationships between the highly diverse communities of birds, parasites, and vectors present at São Paulo Zoo.

Avian Malaria Parasites Share Congeneric Mosquito Vectors

2010 ◽  
Vol 96 (1) ◽  
pp. 144-151 ◽  
Author(s):  
M. Kimura ◽  
J. M. Darbro ◽  
L. C. Harrington
Keyword(s):  
Avian Malaria ◽  
Mosquito Vectors ◽  
Malaria Parasites ◽  
Avian Malaria Parasites

Blood Meal Identification and Prevalence of Avian Malaria Parasite in Mosquitoes Collected at Kushiro Wetland, a Subarctic Zone of Japan

2011 ◽  
Vol 48 (4) ◽  
pp. 904-908 ◽  
Author(s):  
Hiroko Ejiri ◽  
Yukita Sato ◽  
Kyeong Soon Kim ◽  
Yoshio Tsuda ◽  
Koichi Murata ◽  
...  
Keyword(s):  
Blood Meal ◽  
Malaria Parasite ◽  
Avian Malaria ◽  
Avian Malaria Parasite ◽  
Blood Meal Identification
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