Essai de révision des Physaloptères parasites de Reptiles

Chabaud, A. G.

doi:10.1051/parasite/1956311029

Cited by 22 publications

(6 citation statements)

References 5 publications

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“…The morphologic-based classification of Physalopteridae members (e.g., Skrjabinoptera , Abbreviata , and Physaloptera ) exclude some morphometric measurements from the taxonomic characters such as the length of the esophagus, vulva position, and egg dimensions. These features seem to variate in the same species and are used only in exceptional cases such as P. squamatae (Harwood 1932), S. chamaeleontis (Gedoelst 1916), and S. simplicidens (Ortlepp 1922) [ 23 ]. As expected, our data confirmed the variability of these parameters within the A. caucasica ( Table 1 ).…”

Section: Discussionmentioning

confidence: 99%

Zoonotic Abbreviata caucasica in Wild Chimpanzees (Pan troglodytes verus) from Senegal

et al. 2020

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Abbreviata caucasica (syn. Physaloptera mordens) has been reported in human and various non-human primates including great apes. The identification of this nematode is seldom performed and relies on egg characterization at the coproscopy, in the absence of any molecular tool. Following the recovery of two adult females of A. caucasica from the feces of wild Senegalese chimpanzees, morphometric characteristics were reported and new data on the width of the esophagus (0.268–0.287 mm) and on the cuticle structure (0.70–0.122 mm) were provided. The molecular characterization of a set of mitochondrial (cox1, 16S rRNA, 12S rRNA) and nuclear (18S rRNA and ITS2) partial genes was performed. Our phylogenetic analysis indicates for the first time that A. caucasica is monophyletic with Physaloptera species. A novel molecular tool was developed for the routine diagnosis of A. caucasica and the surveillance of Nematoda infestations. An A. caucasica-specific qPCR targeting the 12S gene was assessed. The assay was able to detect up to 1.13 × 10−3 eggs/g of fecal matter irrespective of its consistency, with an efficiency of 101.8% and a perfect adjustment (R2 = 0.99). The infection rate by A. caucasica in the chimpanzee fecal samples was 52.08%. Only 6.19% of the environmental samples were positive for nematode DNA and any for A. caucasica. Our findings indicate the need for further studies to clarify the epidemiology, circulation, life cycle, and possible pathological effects of this infestation using the molecular tool herein developed.

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Section: Discussionmentioning

confidence: 99%

Zoonotic Abbreviata caucasica in Wild Chimpanzees (Pan troglodytes verus) from Senegal

et al. 2020

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“…Cephalic dentition with a conspicuous external apical tooth, a small bifid internal apical tooth, and a small bifid tooth on the dorsal and ventral margin of each lip (Chabaud 1956) prevails in the three species that have lowest host specificity and widest geographical range : A. antarctica, A. bancrofti, and A. hastaspicula. The high number of host species in which these three nematodes occur, particularly the first two (Fig.…”

Section: Cephalic Morphology and Feedingmentioning

confidence: 99%

Physalopterine nematodes in Australian reptiles: interactions and patterns of infection

Jones¹

2014

Aust. J. Zool.

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Abstract. Spirurid nematodes (family Physalopteridae) are widespread as adults or as encysted larvae in many species of Australian reptiles. Fifteen species of physalopterine nematodes (subfamily Physalopterinae) in the genera Kreisiella, Abbreviata and Skrjabinoptera infect more than 40 species of reptile in the five families Agamidae, Varanidae, Gekkonidae, Scincidae and Elapidae. Four species of nematode are host-species specific, six are host-family specific to varanid lizards, and three to agamid lizards. Larger species of reptile support a higher prevalence and abundance of nematodes, and often support multiple infections with more than one species, with the potential for interspecific competition. Geographic distribution of nematodes is partially limited by host distribution, and by climatic factors, mainly precipitation and temperature. There are strong positive and negative associations between several pairs of nematodes. Two species of nematode with the most pronounced muscular development at the anterior end, Abbreviata tumidocapitis and Abbreviata glebopalmae, only occur concurrently, and in low numbers, with species of nematode without these morphological features, suggesting differences in feeding in the hosts' stomachs. A combination of host specificity, geographic distribution and habitat, climatic factors and feeding organ morphology are factors that probably reduce the potential for interspecific competition. There is no evidence that concurrent infections affect either prevalence or abundance of nematodes, or cause discernible pathological changes to their hosts.

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“…Abbreviata leptosoma is a spirurid nematode, first described by Chabaud [68] in the gut of Uromastiz acanthinurus in Algeria.…”

Section: Discussionmentioning

confidence: 99%

Gastrointestinal helminths of lizards (Reptilia: Squamata) from Egypt

Elmahy

Harras

2019

Parasitologists United Journal

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Background: Despite the fact that Egypt contains a large number of lizard species, yet there is little knowledge recorded regarding the helminth fauna infecting this group of hosts. A parasitological study on gastrointestinal helminths of lizards was carried out during Summer (August) and Autumn (September and October), 2014 and 2015, respectively. Objective: This study aims to update information on helminth parasites that infect lizards in Egypt. Material and Methods: Seven species of lizards,

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Essai de révision des Physaloptères parasites de Reptiles

Cited by 22 publications

References 5 publications

Zoonotic Abbreviata caucasica in Wild Chimpanzees (Pan troglodytes verus) from Senegal

Zoonotic Abbreviata caucasica in Wild Chimpanzees (Pan troglodytes verus) from Senegal

Physalopterine nematodes in Australian reptiles: interactions and patterns of infection

Gastrointestinal helminths of lizards (Reptilia: Squamata) from Egypt

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