Haemoproteus minutus is highly virulent for Australasian and South American parrots

Background: Haemoproteus and Plasmodium species are widespread avian blood parasites. Several Plasmodium species are known for their high virulence and have caused significant declines in naïve bird populations. The impact of closely related Haemoproteus parasites is largely unknown. Recently we rep...

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Authors: Ortiz Catedral, Luis; Brunton, Dianne; Stidworthy, Mark F.; Elsheikha, Hany M.; Pennycott, Tom; Schulze, Christoph; Braun, Michael; Wink, Michael; Gerlach, Helga; Pendl, Helene; Gruber, Achim D.; Ewen, John; Pérez Tris, Javier; Valkiūnas, Gediminas; Olias, Philipp
Format: Article
Publication date:2019
Country:España
Institution:Universidad Complutense de Madrid (UCM)
Repository:Docta Complutense
Language:English
OAI Identifier:oai:docta.ucm.es:20.500.14352/13508
Online Access:https://hdl.handle.net/20.500.14352/13508
Access Level:Open access
Keyword:574
598.2
Haemoproteus
Plasmodium
Malaria
Haemosporida
Apicomplexa
Psittaciformes
Parrot
Conservation
Aves
Ecología (Biología)
2401.20 Ornitología
2401.06 Ecología animal
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author Ortiz Catedral, Luis
author2 Brunton, Dianne
Stidworthy, Mark F.
Elsheikha, Hany M.
Pennycott, Tom
Schulze, Christoph
Braun, Michael
Wink, Michael
Gerlach, Helga
Pendl, Helene
Gruber, Achim D.
Ewen, John
Pérez Tris, Javier
Valkiūnas, Gediminas
Olias, Philipp
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author_browse Braun, Michael
Brunton, Dianne
Elsheikha, Hany M.
Ewen, John
Gerlach, Helga
Gruber, Achim D.
Olias, Philipp
Ortiz Catedral, Luis
Pendl, Helene
Pennycott, Tom
Pérez Tris, Javier
Schulze, Christoph
Stidworthy, Mark F.
Valkiūnas, Gediminas
Wink, Michael
author_facet Ortiz Catedral, Luis
Brunton, Dianne
Stidworthy, Mark F.
Elsheikha, Hany M.
Pennycott, Tom
Schulze, Christoph
Braun, Michael
Wink, Michael
Gerlach, Helga
Pendl, Helene
Gruber, Achim D.
Ewen, John
Pérez Tris, Javier
Valkiūnas, Gediminas
Olias, Philipp
author_role author
collection Docta Complutense
description Background: Haemoproteus and Plasmodium species are widespread avian blood parasites. Several Plasmodium species are known for their high virulence and have caused significant declines in naïve bird populations. The impact of closely related Haemoproteus parasites is largely unknown. Recently we reported a lethal disease in two parrot aviaries caused by Haemoproteus parasites. Results: Here we show that the causative pathogen Haemoproteus minutus is responsible for further 17 lethal outbreaks in parrot aviaries in Denmark, Germany and Great Britain. All affected parrots are endemic to Australasia and South America. We sequenced the cytochrome b gene from megalomeront-infected muscle tissue of 21 parrots and identified the two lineages TUPHI01 and TURDUS2 as causative agents, commonly naturally infecting the common blackbird (Turdus merula) and the song thrush (Turdus philomelos), respectively, in the Palaearctic. No intraerythrocytic parasite stages were found in any of the parrots. We failed to detect H. minutus in invasive Indian ring-necked parakeets (Psittacula krameri) in Germany. Together this suggests that abortive infections with two virulent lineages of H. minutus are lethal for naïve parrot species from Australasia and South America. We asked whether we could detect H. minutus in New Zealand, where its Turdus hosts were introduced in the 1800s. We therefore tested invasive blackbirds and song thrushes, and the co-existing endemic red-fronted parakeet (Cyanoramphus novaezelandiae) population on three New Zealand islands. No Haemoproteus spp. DNA was detected in all blood samples, indicating absence of transmission. Conclusions: The results of this study show that captive parrots in Europe are threatened by two lineages of an otherwise benign parasite of Turdus spp. Aviary collections of parrots should be protected from Culicoides spp. vectors in Europe. Animal trade and climate changes extending the current vector and parasite distribution have to be considered as potential risk factors for the introduction of the disease in naïve parrot populations.
eu_rights_str_mv openAccess
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institution Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
language eng
network_acronym_str ES
network_name_str España
oai_identifier_str oai:docta.ucm.es:20.500.14352/13508
publishDate 2019
publishDateSort 2019
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publisherStr BMC
reponame_str Docta Complutense
spelling Haemoproteus minutus is highly virulent for Australasian and South American parrots Ortiz Catedral, Luis Brunton, Dianne Stidworthy, Mark F. Elsheikha, Hany M. Pennycott, Tom Schulze, Christoph Braun, Michael Wink, Michael Gerlach, Helga Pendl, Helene Gruber, Achim D. Ewen, John Pérez Tris, Javier Valkiūnas, Gediminas Olias, Philipp 574 598.2 Haemoproteus Plasmodium Malaria Haemosporida Apicomplexa Psittaciformes Parrot Conservation Aves Ecología (Biología) 2401.20 Ornitología 2401.06 Ecología animal Background: Haemoproteus and Plasmodium species are widespread avian blood parasites. Several Plasmodium species are known for their high virulence and have caused significant declines in naïve bird populations. The impact of closely related Haemoproteus parasites is largely unknown. Recently we reported a lethal disease in two parrot aviaries caused by Haemoproteus parasites. Results: Here we show that the causative pathogen Haemoproteus minutus is responsible for further 17 lethal outbreaks in parrot aviaries in Denmark, Germany and Great Britain. All affected parrots are endemic to Australasia and South America. We sequenced the cytochrome b gene from megalomeront-infected muscle tissue of 21 parrots and identified the two lineages TUPHI01 and TURDUS2 as causative agents, commonly naturally infecting the common blackbird (Turdus merula) and the song thrush (Turdus philomelos), respectively, in the Palaearctic. No intraerythrocytic parasite stages were found in any of the parrots. We failed to detect H. minutus in invasive Indian ring-necked parakeets (Psittacula krameri) in Germany. Together this suggests that abortive infections with two virulent lineages of H. minutus are lethal for naïve parrot species from Australasia and South America. We asked whether we could detect H. minutus in New Zealand, where its Turdus hosts were introduced in the 1800s. We therefore tested invasive blackbirds and song thrushes, and the co-existing endemic red-fronted parakeet (Cyanoramphus novaezelandiae) population on three New Zealand islands. No Haemoproteus spp. DNA was detected in all blood samples, indicating absence of transmission. Conclusions: The results of this study show that captive parrots in Europe are threatened by two lineages of an otherwise benign parasite of Turdus spp. Aviary collections of parrots should be protected from Culicoides spp. vectors in Europe. Animal trade and climate changes extending the current vector and parasite distribution have to be considered as potential risk factors for the introduction of the disease in naïve parrot populations. BMC https://hdl.handle.net/20.500.14352/13508
spellingShingle Haemoproteus minutus is highly virulent for Australasian and South American parrots
Ortiz Catedral, Luis
574
598.2
Haemoproteus
Plasmodium
Malaria
Haemosporida
Apicomplexa
Psittaciformes
Parrot
Conservation
Aves
Ecología (Biología)
2401.20 Ornitología
2401.06 Ecología animal
title Haemoproteus minutus is highly virulent for Australasian and South American parrots
title_full Haemoproteus minutus is highly virulent for Australasian and South American parrots
title_fullStr Haemoproteus minutus is highly virulent for Australasian and South American parrots
title_full_unstemmed Haemoproteus minutus is highly virulent for Australasian and South American parrots
title_short Haemoproteus minutus is highly virulent for Australasian and South American parrots
title_sort Haemoproteus minutus is highly virulent for Australasian and South American parrots
topic 574
598.2
Haemoproteus
Plasmodium
Malaria
Haemosporida
Apicomplexa
Psittaciformes
Parrot
Conservation
Aves
Ecología (Biología)
2401.20 Ornitología
2401.06 Ecología animal
topic_facet 574
598.2
Haemoproteus
Plasmodium
Malaria
Haemosporida
Apicomplexa
Psittaciformes
Parrot
Conservation
Aves
Ecología (Biología)
2401.20 Ornitología
2401.06 Ecología animal
url https://hdl.handle.net/20.500.14352/13508