Amblyomma nodosum (Acari: Ixodidae) parasitizing a domestic dog in Colatina, Espírito Santo, Brazil

Mazioli, Rafael; Szabó, Matías Pablo Juan; Mafra, Cláudio

doi:10.1590/s1984-29612012005000006

Cited by 8 publications

(3 citation statements)

References 15 publications

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“…Our report extends the distribution of this tick species into Ceará , northeastern Brazil, and within the Caatinga biome, mature stages of A. nodosum parasitized T. tetradactyla, which is consistent with previous studies (Barros-Battestti et al 2006). There is no record of human infestation by A. nodosum (Guglielmone et al 2014), but it has been previously reported parasitizing a dog (Canis familiaris; Mazioli et al 2012). Our results may indicate the possibility for epidemic and enzootic cycles of rickettsiae.…”

supporting

confidence: 45%

Rickettsiasp. Strain NOD Infecting Ticks (Amblyomma nodosum) in an Endemic Area of Spotted Fever in Brazil

Moerbeck

Vizzoni

Oliveira

et al. 2018

Journal of Wildlife Diseases

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supporting

confidence: 45%

Rickettsiasp. Strain NOD Infecting Ticks (Amblyomma nodosum) in an Endemic Area of Spotted Fever in Brazil

Moerbeck

Vizzoni

Oliveira

et al. 2018

Journal of Wildlife Diseases

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“…Although there is a lack of reports of A. nodosum ticks parasitizing hosts other than anteaters, in a few cases those ticks have been reported parasitizing unconventional hosts. Unexpected parasitism by A. nodosum has been reported in mammals, including a capybara [ Hydrochoerus hydrocharesis (Rodentia: Caviidae)] in the state of Rondônia, northern Brazil (Amazon Rainforest biome) and a domestic dog [ Canis familiaris (Carnivora: Canidae)] from the state of Espírito Santo, southeastern Brazil (Atlantic Forest biome) ( Fuverki et al, 2021 ; Mazioli et al, 2012 ). On the other hand, A. nodosum immature specimens are commonly found on birds, especially Passeriformes ( Guglielmone et al, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

First report of unusual case of parasitism by Amblyomma nodosum (Neumann, 1889) in a yellow cururu toad (Rhinella icterica) in the Northeastern Brazilian Caatinga

Lee,

Barros-Battesti,

Arantes

et al. 2024

Rev. Bras. Parasitol. Vet.

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The Amblyomma genus (Arachnida: Ixodidae) is widely distributed in South America, with 34 species occurring in Brazil. Amblyomma nodosum Neumann 1889 is a species that predominantly feeds on Passeriformes during immature stages (larvae and nymphs) and anteaters (Myrmecophagidae) during adult stages. The aim of the present study is to report, for the first time, an unusual case of parasitism by adults of A. nodosum on a yellow cururu toad (Rhinella icterica) captured in the city of Nossa Senhora da Glória, Sergipe state (Northeastern Brazil) in the Caatinga biome, and also investigate the presence of DNA of Rickettsia in the collected material. DNA was extracted from all specimens collected (N=8) and subjected to PCR assays based on the tick 16S rRNA endogenous gene and gltA gene for Rickettsia sp. All samples (8/8; 100%) were positive for the 16S rRNA endogenous gene and two amplicons (obtained from one male and one female) were purified and sequenced. The BLASTn analysis of the sequences revealed a high degree of similarity (95-100%) with A. nodosum sequences previously deposited on GenBank, while the phylogenetic analysis clustered the sequences obtained in the same clade as A. nodosum sequences from Brazil.

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“…The host species for this stage appear to be restricted to those within the superorder Xenarthra, particularly Myrmecophagidae (JONES et al, 1972;BECHARA et al, 2002;MARTINS et al, 2004MARTINS et al, , 2014GARCIA et al, 2013). Occasional records of hosts such as the six-banded armadillo Euphractus sexcinctus (Linnaeus, 1758) (BECHARA et al, 2002) and dogs can be considered accidental (MAZIOLI et al, 2012). Nava & Guglielmone (2013) consider that ticks do not generally show high host specificity, and that ecological factors such as habitat specificity, time elapsed between generations, the free-living stage, and the type of cycle are more important than host selectivity.…”

mentioning

confidence: 99%

Amblyomma nodosum (Neumann, 1899): observations on life cycle under laboratory conditions

Pinheiro

Lourenço

Sá-Hungaro

et al. 2015

Rev. Bras. Parasitol. Vet.

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The natural hosts of Amblyomma nodosum in the immature stages are a variety of birds and the anteater in the adult stage. However, so far no data have been published about this tick's life cycle. To fill this gap, a record was made of its development under laboratory conditions. All the procedures were controlled in a BOD chamber set at 27±1 °C and 80±10% relative humidity and scotophase. The parasitic stages were raised on rabbits (Oryctolagus cuniculus Linnaeus, 1758), from which more than 50% of larvae and nymphs were recovered, although only a small portion performed ecdysis. The adults did not fixed on the rabbits, which suggests that the experimental conditions were unsuitable for the requirements of this species. The data obtained here indicate that A. nodosum is highly dependent on its host and environment whereas under laboratory conditions and host chosen for the study was not obtained satisfactory results and new studies with different hosts and new environmental conditions should be elaborated.Keywords: Tick, host, biology, Brazil, Amblyomma nodosum. ResumoOs hospedeiros naturais de Amblyomma nodosum, nos estágios imaturos, são uma variedade de pássaros e, na fase adulta, são os tamanduás. No entanto, até agora não há dados publicados sobre o ciclo de vida desse carrapato. Para preencher essa lacuna, um registro foi realizado sobre o desenvolvimento em condições de laboratório. Todos os procedimentos foram controlados em câmaras tipo BOD a 27±1 °C e 80±10% de umidade relativa e escotofase. As fases parasitárias foram desenvolvidas em coelhos (Oryctolagus cuniculus Linnaeus, 1758), a partir dos quais mais de 50% das larvas e ninfas foram recuperados, embora apenas uma pequena porção tenha realizado ecdise. Os adultos não se fixaram nos coelhos, o que sugere que as condições experimentais eram inadequadas para os requisitos dessa espécie. Os dados obtidos indicam que A. nodosum é altamente dependente de seu hospedeiro e ambiente, enquanto em condições de laboratório e pela escolha do hospedeiro para o estudo não foram obtidos resultados satisfatórios, e novos estudos com diferentes hospedeiros e novas condições ambientais devem ser elaborados.Palavras-chave: Carrapato, hospedeiro, biologia, Brasil, Amblyomma nodosum.

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Amblyomma nodosum (Acari: Ixodidae) parasitizing a domestic dog in Colatina, Espírito Santo, Brazil

Cited by 8 publications

References 15 publications

Rickettsiasp. Strain NOD Infecting Ticks (Amblyomma nodosum) in an Endemic Area of Spotted Fever in Brazil

Rickettsiasp. Strain NOD Infecting Ticks (Amblyomma nodosum) in an Endemic Area of Spotted Fever in Brazil

First report of unusual case of parasitism by Amblyomma nodosum (Neumann, 1889) in a yellow cururu toad (Rhinella icterica) in the Northeastern Brazilian Caatinga

Amblyomma nodosum (Neumann, 1899): observations on life cycle under laboratory conditions

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