Zoonotic Parasites of Reptiles: A Crawling Threat

Trends in Parasitology, Journal Year: 2020, Volume and Issue: 36(8), P. 677 - 687

Published: May 7, 2020

Language: Английский

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Reptile vector-borne diseases of zoonotic concern

International Journal for Parasitology Parasites and Wildlife, Journal Year: 2021, Volume and Issue: 15, P. 132 - 142

Published: April 22, 2021

Reptile vector-borne diseases (RVBDs) of zoonotic concern are caused by bacteria, protozoa and viruses transmitted arthropod vectors, which belong to the subclass Acarina (mites ticks) order Diptera (mosquitoes, sand flies tsetse flies). The phyletic age reptiles since their origin in late Carboniferous, has favored vectors pathogens co-evolve through millions years, bridging present host-vector-pathogen interactions. is dated early cretaceous with Trypanosomatidae species extinct flies, ancestral modern protozoan hemoparasites (e.g., Leishmania Trypanosoma) associated reptiles. Bacterial RVBDs represented microorganisms also affecting mammals genera Aeromonas, Anaplasma, Borrelia, Coxiella, Ehrlichia Rickettsia, most them having reptilian clades. Finally, may play an important role as reservoirs arborivuses, given low host specificity anthropophilic mosquitoes flies. In this review, from discussed, well interactions between reptiles, they transmit.

Language: Английский

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Hemogregarines in bufonid anurans from the Brazilian Amazon, with description a new species of Lankesterella (Apicomplexa: Lankesterellidae)

International Journal for Parasitology Parasites and Wildlife, Journal Year: 2025, Volume and Issue: 26, P. 101044 - 101044

Published: Feb. 4, 2025

Here we describe, in an unprecedented way for the Brazilian Amazon, one Apicomplexa species infecting anuran Pará, Brazil, using integrative approach that includes taxonomy, providing morphology, morphometrics, and molecular data. Samples were collected between February 2021 2022 community of Curupira, municipality Santarém, industrial area Marabá, both Pará state. Specimens Rhinella marina diptycha captured by hand during active search, blood samples cardiac puncture. One aliquot was used to prepare smears microscopical analysis another further analyses. Of five R. caught, (20%) presented parasites morphologically compatible with belonging genus Hepatozoon, while three (33.3%) belong genera Lankesterella Hemolivia. Based on data 18S rDNA sequences, Hepatozoon sequence obtained clustered other parasite recovered from amphibians. The sp. placed a sister clade described birds close L. minima, All attempts amplify Hemolivia DNA unsuccessful. We oliviacatarinae n. reported infection bufonids anurans Amazon. This study increases knowledge hemoparasites confirms importance taxonomy these groups.

Language: Английский

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Squamate reptiles may have compensated for the lack of γδTCR with a duplication of the TRB locus

Frontiers in Immunology, Journal Year: 2025, Volume and Issue: 15

Published: Jan. 9, 2025

Squamate reptiles are amongst the most successful terrestrial vertebrate lineages, with over 10,000 species across a broad range of ecosystems. Despite their success, squamates also least studied lineages immunologically. Recently, universal lack γδ T cells in due to deletions genes encoding cell receptor (TCR) γ and δ chains was discovered. Here, we begin address how loss may have impacted evolution squamate immune system. Using skink Tiliqua rugosa, found that not significantly increased complexity conventional beta (TCRβ or TRB) chain V regions compared nearest living relative, tuatara, Sphenodon punctatus other amniotes. Our analyses include putative new TCR locus. This novel locus contains V, D, J gene segments undergo V(D)J recombination, albeit limited number species. Based on conserved residues, predicted protein would be expected form heterodimer TCRα. appears derived from an ancient duplication TRB is homologous recently described epsilon (TRE). TRE absent genomes tuatara all Archosaurs examined specific.

Language: Английский

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An updated checklist of ticks and mites (Acari) reported on reptiles of Türkiye: New records and new host-parasite associations

Acarological Studies, Journal Year: 2025, Volume and Issue: 7(1), P. 12 - 41

Published: Jan. 29, 2025

Reptiles are terrestrial tetrapods with a cosmopolitan distribution worldwide, diversity of more than 10,000 species. Due to this diversity, there many interactions both animals and humans within the ecosystem. Naturally, reptiles affect life cycle ectoparasites that transmit pathogenic or nonpathogenic agents animals. In study, it was aimed reveal ectoparasitic fauna commonly found in Sakarya, Samsun, Artvin provinces between 2021 2023. The study examined 1021 individuals 26 different host species (tortoise, gecko, lizards snakes). At end examination, tick specimens were identified as Ixodes ricinus (Linnaeus) Hyalomma aegyptium (Linneaus); mite Hemilaelaps farrieri (Tibbetts), Ophionyssus natricis (Gervais), Op. saurarum (Oudemans), Odontacarus efferus Kudryashova, Od. hushchai naumovi Kudryashova Rybin, saxicolis Schluger, Huschcha Lacertacarus callosus (Schluger), L. similis Schluger Vasilieva, Geckobia turkestana Hirst. Among these ectoparasites, H. farrieri, efferus, hushchai, detected on for first time Türkiye. addition, studies conducted date Türkiye also listed appendix section.

Language: Английский

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Host diversity mediates the influence of landscape structure on parasite communities in Cerrado agricultural landscapes

Annals of the New York Academy of Sciences, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Parasites are key elements in ecosystem functioning owing to their role hosts' population dynamics and abundance, regulation stabilizing trophic networks, shaping community structure. Landscape changes can affect parasite communities because of suitable microhabitats on In the Brazilian Cerrado, no study has so far analyzed effects intensive agricultural landscaping helminth parasites mammals. Here, we fill this knowledge gap, addressing landscape structure Sigmodontinae host's richness abundance landscapes. Using structural equation models, found that parasites' determined mainly by rodent only indirectly affected We direct effect habitat fragmentation, amount, compositional heterogeneity parasites, but they directly community. Moreover, difference both parasite's between crop growing fallow seasons. Our results show efforts preserve may comprise conservation strategies biodiversity hosts, including restoration vegetation remnants at level.

Language: Английский

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Parasite diversity in sea turtles of the temperate SW Atlantic: a bridge between systematics and ecology

Marine Biology, Journal Year: 2025, Volume and Issue: 172(4)

Published: March 11, 2025

Language: Английский

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WIMANET: The Power of a Network in Wildlife Malaria Research

Integrative Zoology, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

ABSTRACT The Wildlife Malaria Network (WIMANET) is an EU‐COST‐funded global network of researchers and stakeholders interested in wildlife malaria related haemosporidian parasites. has six working groups covering a diverse range core topics within research, focusing on genetics genomics, species identification, vectors, haematology, communities, communication. Up to now, the includes 229 members from 45 countries including Europe, America, Africa, Asia, but this number continually growing. This review outlines aims goals WIMANET, providing summary activities plans for each next years. open new members, we provide details how both existing can get involved take part activities. WIMANET provides platform collaborative innovative encourage all community (and beyond) advantage opportunities offers.

Language: Английский

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Comparison of Reptilian Genomes Reveals Deletions Associated with the Natural Loss of γδ T Cells in Squamates

The Journal of Immunology, Journal Year: 2022, Volume and Issue: 208(8), P. 1960 - 1967

Published: March 28, 2022

T lymphocytes or cells are key components of the vertebrate response to pathogens and cancer. There two cell classes based on their TCRs, αβ γδ cells, each plays a critical role in immune responses. The squamate reptiles may be unique among lineages by lacking an entire class cells. In this study, we investigated basis loss squamates. genome transcriptome sleepy lizard, skink Tiliqua rugosa, were compared with those tuatara, Sphenodon punctatus, last living member Rhynchocephalian reptiles. We demonstrate that lack TCRγ TCRδ transcripts due large deletions T. rugosa genome. also show tuataras growing list species, including sharks, frogs, birds, alligators, platypus, can use atypical appears chimera TCR chain Ab-like Ag-binding domain. Tuatara represents nearest relative squamates retain γδTCR is genomic appear conserved other genes encoding αβTCR chains do not have increased complexity compensate for

Language: Английский

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Investigating the role of urbanisation, wetlands and climatic conditions in nematode parasitism in a large Australian elapid snake

International Journal for Parasitology Parasites and Wildlife, Journal Year: 2019, Volume and Issue: 11, P. 32 - 39

Published: Dec. 3, 2019

Tiger snakes (Notechis scutatus) in wetlands of South-West Western Australia (SW WA) are commonly parasitised by the nematode Ophidascaris pyrrhus. Host-parasite interactions complex and can potentially be impacted factors such as urbanisation or climate. We assessed whether urbanisation, distance to wetland sites, climatic have influenced parasitism tiger from specimens collected over last century. dissected 91 museum across SW WA counted gastrointestinal nematodes. Binomial generalised linear modelling, with presence/absence nematodes a response variable, was used determine which were driving infection. Model selection using AICc values showed that proximity wetlands, rainfall topographic wetness most strongly associated probability infection also found slight positive correlation between abundance annual mean maximum temperature. no significant influence urban centre on burdens; however, our results suggest water-related variables key driver WA. is still interest its role climate modification may increase snakes.

Language: Английский

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