Bartonella-Like DNA Detected inIxodes tasmaniTicks (Acari: Ixodida) Infesting Koalas (Phascolarctos cinereus) in Victoria, Australia

Vilcins, Inger-Marie E; Kosoy, Michael; Old, Julie M.; Deane, Elizabeth M.

doi:10.1089/vbz.2008.0132

Cited by 16 publications

(12 citation statements)

References 33 publications

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“…was identified by only four sequences, its absence in control samples means that this likely represents a true finding in female I. fecialis, which (Fournier et al, 2007). Molecular detection of Bartonella DNA from Australian ticks has also been reported in ticks (I. tasmani) parasitising koalas (Phascolarctos cinereus) from Philip Island, VIC (Vilcins et al, 2009b). Additional studies on Bartonella in Australia wildlife include those by Gundi et al (2009), Kaewmongkol et al (2011a) and Dybing et al (2016).…”

Section: Discussionmentioning

confidence: 94%

Bacterial community profiling highlights complex diversity and novel organisms in wildlife ticks

Egan

Loh

Banks

et al. 2020

Ticks and Tick-borne Diseases

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Ticks (Acari: Ixodida) transmit a greater variety of pathogens than any other blood-feeding group of arthropods. While numerous microbes have been identified inhabiting Australian Ixodidae, some of which are related to globally important tick-borne pathogens, little is known about the bacterial communities within ticks collected from Australian wildlife. In this study, 1,019 ticks were identified on 221 hosts spanning 27 wildlife species. Next-generation sequencing was used to amplify the V1-2 hypervariable region of the bacterial 16S rRNA gene from 238 ticks; Amblyomma triguttatum (n=6), Bothriocroton auruginans (n=11), Bothriocroton concolor (n=20), Haemaphysalis bancrofti (n=10), Haemaphysalis bremneri (n=4), Haemaphysalis humerosa (n=13), Haemaphysalis longicornis (n=4), Ixodes antechini (n=29), Ixodes australiensis (n=26), Ixodes fecialis (n=13), Ixodes holocyclus (n=37), Ixodes myrmecobii (n=1), Ixodes ornithorhynchi (n=10), Ixodes tasmani (n=51) and Ixodes trichosuri (n=3). After bioinformatic analyses, over 14 million assigned bacterial sequences revealed the presence of recently described bacteria 'Candidatus Borrelia tachyglossi', 'Candidatus Neoehrlichia australis', 'Candidatus Neoehrlichia arcana' and 'Candidatus Ehrlichia ornithorhynchi'. Furthermore, three novel Anaplasmataceae species were identified in the present study including; a Neoehrlichia sp. in I. australiensis and I. fecialis collected from quenda (Isoodon fusciventer) (Western Australia), an Anaplasma sp. from one B. concolor from echidna (Tachyglossus aculeatus) (New South Wales), and an Ehrlichia sp. from a single I. fecialis parasitising a quenda (WA). This study highlights the diversity of bacterial genera harboured within wildlife ticks, which may prove to be of medical and/or veterinary importance in the future.

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Section: Discussionmentioning

confidence: 94%

Bacterial community profiling highlights complex diversity and novel organisms in wildlife ticks

Egan

Loh

Banks

et al. 2020

Ticks and Tick-borne Diseases

View full text Add to dashboard Cite

show abstract

“…occurring outside south-west WA include Bartonella australis ex eastern grey kangaroos (Macropus giganteus) (Fournier et al, 2007). Molecular detection of Bartonella DNA from Australian ticks has also been reported in ticks (I. tasmani) parasitising koalas (Phascolarctos cinereus) from Philip Island, VIC (Vilcins et al, 2009b). Additional studies on Bartonella in Australia wildlife include those by Gundi et al (2009), Kaewmongkol et al (2011a and Dybing et al (2016).…”

Section: Discussionmentioning

confidence: 99%

Bacterial community profiling highlights complex diversity and novel organisms in wildlife ticks

Egan

Loh

Banks

et al. 2019

Preprint

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Ticks (Acari: Ixodida) transmit a greater variety of pathogens than any other blood-feeding 1 2 arthropod. While numerous microbes have been identified inhabiting Australian Ixodidae, some of which are related to globally important tick-borne pathogens, little is known about the bacterial communities within ticks collected from Australian wildlife. In this study, 1,019 ticks were identified on 221 hosts spanning 27 wildlife species. Next-generation sequencing was used to amplify the V1-2 hypervariable region of the bacterial 16S rRNA gene from 238 ticks; Amblyomma triguttatum (n=6), Bothriocroton auruginans (n=11), Bothriocroton concolor (n=20), Haemaphysalis bancrofti (n=10), Haemaphysalis bremneri (n=4), Haemaphysalis humerosa (n=13), Haemaphysalis longicornis (n=4), Ixodes antechini (n=29), Ixodes australiensis (n=26), Ixodes fecialis (n=13), Ixodes holocyclus (n=37), Ixodes myrmecobii (n=1), Ixodes ornithorhynchi (n=10), Ixodes tasmani (n=51) and Ixodes trichosuri (n=3). After bioinformatic analyses, over 14 million assigned bacterial sequences revealed the presence of newly described bacteria 'Ca. Borrelia tachyglossi', 'Ca. Neoehrlichia australis', 'Ca. Neoehrlichia arcana' and 'Ca. Ehrlichia ornithorhynchi'. Furthermore, three novel Anaplasmataceae species were identified including; a Neoehrlichia sp. in I. australiensis and I. fecialis ex quenda (Isoodon fusciventer) (Western Australia), an Anaplasma sp. from one B. concolor ex echidna (Tachyglossus aculeatus) (New SouthWales), and an Ehrlichia sp. from a single I. fecialis parasitising a quenda (WA). This study highlights the diversity of bacterial genera harboured within wildlife ticks, which may prove to be of medical and/or veterinary importance in the future.

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“…including: I. ricinus , Dermacentor occidentalis , Dermacentor variabilis , Dermacentorreticulatus , H. longicornis , Harperocallis flava , Ixodes nipponensis , Ixodes pacificus , Ixodes persulcatus , I. ricinus , Ixodes scapularis , Ixodes turdus , Ixodes antechini , Ixodes australiensis , I. tasmani , Ixodes trichosuri and Rhipicephalus sanguineus [115], [116], [117], [118], [119]. Presently, only Bartonella henselae [120], [121], [122], [123], [124] and Bartonella quintana [125] have been reported to cause disease in Australian residents.…”

Section: Differential Diagnosesmentioning

confidence: 99%

“…Presently, only Bartonella henselae [120], [121], [122], [123], [124] and Bartonella quintana [125] have been reported to cause disease in Australian residents. However, a number of other Bartonella species of unknown clinical significance have been identified in Australian animals and their parasites [116], [117], [119], [125], [126].…”

Section: Differential Diagnosesmentioning

confidence: 99%

Is there a Lyme-like disease in Australia? Summary of the findings to date

2016

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Lyme Borreliosis is a common tick-borne disease of the northern hemisphere caused by the spirochaetes of the Borrelia burgdorferi sensu lato (B. burgdorferi s. l.) complex. It results in multi-organ disease with arthritic, cardiac, neurological and dermatological manifestations. In the last twenty-five years there have been over 500 reports of an Australian Lyme-like syndrome in the scientific literature. However, the diagnoses of Lyme Borreliosis made in these cases have been primarily by clinical presentation and laboratory results of tentative reliability and the true cause of these illnesses remains unknown. A number of animals have been introduced to Australia that may act as B. burgdorferi s. l. reservoirs in Lyme-endemic countries, and there are some Australian Ixodes spp. and Haemaphysalis spp. ticks whose geographical distribution matches that of the Australian Lyme-like cases. Four published studies have searched for Borrelia in Australian ticks, with contradicting results. The cause of the potential Lyme-like disease in Australia remains to be defined. The evidence to date as to whether these illnesses are caused by a Borrelia species, another tick borne pathogen or are due to a novel or unrelated aetiology is summarised in this review.

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Bartonella-Like DNA Detected inIxodes tasmaniTicks (Acari: Ixodida) Infesting Koalas (Phascolarctos cinereus) in Victoria, Australia

Cited by 16 publications

References 33 publications

Bacterial community profiling highlights complex diversity and novel organisms in wildlife ticks

Bacterial community profiling highlights complex diversity and novel organisms in wildlife ticks

Bacterial community profiling highlights complex diversity and novel organisms in wildlife ticks

Is there a Lyme-like disease in Australia? Summary of the findings to date

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