Polystoma cuvieri n. sp. (Monogenea: Polystomatidae) a Parasite of the Urinary Bladder of the Leptodactylid Frog Physalaemus cuvieri in Paraguay

Vaucher, Claude

doi:10.2307/3282828

Cited by 13 publications

(5 citation statements)

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“…Polystoma cuvieri is a monogenean found in Physalaemus cuvieri . Vaucher (1990) described Po. cuvieri in the urinary bladder of P. cuvieri from Paraguay.…”

Section: Discussionmentioning

confidence: 99%

Helminth community structure of 13 species of anurans from Atlantic rainforest remnants, Brazil

et al. 2017

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This study aimed to evaluate the community composition and structure of the helminths found in 13 anuran species, and to evaluate whether this parasite community is determined by anuran characteristics. We found that the helminth fauna of the amphibians from five anuran families consisted of 13 taxa and that Cosmocercidae gen. sp. was the most prevalent taxon, followed by Oswaldocruzia subauricularis. Host body size was a determining factor of the composition and structure of the parasitic fauna. Helminth abundance and richness were positively correlated with host body size. The host Leptodactylus latrans had the highest helminth richness (n = 8). The frog Hypsiboas faber had the greatest helminth diversity (H' = 0.711). The mean helminth species richness and diversity differed significantly between host species (P < 0.05). Taken together, our data indicate that, in sympatric species of amphibians, the morphological and behavioural characteristics of the hosts are important for structuring the helminth parasite communities.

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“…Polystoma cuvieri is a monogenean found in Physalaemus cuvieri . Vaucher (1990) described Po. cuvieri in the urinary bladder of P. cuvieri from Paraguay.…”

Section: Discussionmentioning

confidence: 99%

Helminth community structure of 13 species of anurans from Atlantic rainforest remnants, Brazil

et al. 2017

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“…Moreover, sensitivity and specificity of applied DSFS to detect helminth and protozoan stages might have influenced observed prevalence as different diagnostic methods in former wildlife studies have been used (Rizvi et al 2011;Amin et al 2012). Despite the fact that extrinsic risk factors, such as habitat changes, habitat losses, predatory pressure, and poor water quality can directly affect parasitic burdens and prevalences in free-ranging amphibians (Vaucher 1990;Kehr and Hamann 2003;Marcogliese and Pietrock 2011;Thiemann and Wassersug 2000), very little is still known whether these factors might also influence the outcome of parasitic burdens in pet amphibians kept in households or zoos (Mutschmann 2010). In this study, helminth infections occurred frequently in investigated animals (Table 4) et al 2011), while males live in earth/ground substrates (geohelminths).…”

Section: Discussionmentioning

confidence: 99%

Endoparasites infecting exotic captive amphibian pet and zoo animals (Anura, Caudata) in Germany

2020

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Alongside exotic reptiles, amphibians, such as toads, frogs, salamanders, and newts, are nowadays considered popular pets worldwide. As reported for other exotic pet animals, amphibians are known to harbor numerous gastrointestinal parasites. Nonetheless, very little data are available on captive amphibian parasitic diseases. In this study, we applied direct saline fecal smears (DSFS) to examine in total 161 stool samples from 41 different amphibian species belonging to the orders Anura and Caudata. In addition, carbolfuchsin-smear (CFS) staining (n = 74 samples) was used to detect amphibian Cryptosporidium oocysts. Also, complete dissections of deceased amphibians (n = 107) were performed to specify parasite infections and to address parasite-associated pathogenicity. Overall, examined amphibian fecal samples contained 12 different parasite taxa. The order Rhabditida with the species Rhabdias spp. and Strongyloides spp. were the most prevalent nematode species (19.3%), followed by flagellated protozoans (8.7%), Amphibiocapillaria spp./Neocapillaria spp. (7.5%), Oswaldocruzia spp. (4.3%), Blastocystis spp. (3.1%), Cosmocerca spp. (3.1%), oxyurids (Pharyngonoidae) (3.1%), spirurids (1.2%), un-sporulated coccidian oocysts (0.6%), Tritrichomonas spp. (0.6%), Karotomorpha spp. (0.6%), and Cryptosporidium spp. (0.6%). One CFS-stained fecal sample (1.4%) was positive for Cryptosporidium oocysts. Within dissected amphibians, 31 (48.4%) of the anurans and 11 (26.2%) of the salamanders were infected with gastrointestinal parasites. One cutaneous Pseudocapillaroides xenopi infection was diagnosed in an adult African clawed frog (Xenopus laevis). Etiologically, 17 (15.9%) of them died due to severe parasitic and/or bacterial infections (e.g., Chryseobacterium indologenes, Citrobacter freudii, Sphingobacterium multivorum, Klebsiella pneumoniae). High prevalence and pathological findings of several clinical amphibian parasitoses call for more detailed investigation on gastrointestinal parasite-derived molecular mechanisms associated with detrimental lesions or even death.

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“…Within amphibian polystomes, the haptoral sclerites are typically represented by 16 marginal hooklets and one pair of hamuli, although a few exceptions are known [14, 25, 31]. These characters have been largely investigated because of their usefulness in polystome delimitation [8, 10, 11, 14, 16, 25, 35, 36, 46–48]. The species of Indopolystoma are characterized by a posteriormost marginal hooklet C1, with prominent broad blade and guard, much larger than those of hooklets C2–C8, unlike that of Polystoma and Diplorchis spp.…”

Section: Discussionmentioning

confidence: 99%

Indopolystoman. gen. (Monogenea, Polystomatidae) with the description of three new species and reassignment of eight knownPolystomaspecies from Asian frogs (Anura, Rhacophoridae)

2019

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The polystomes (Monogenea, Polystomatidae) radiated across semi-aquatic tetrapods including all three amphibian orders, freshwater turtles and the hippopotamus. Prior to this study, phylogenetic analyses revealed that the most diverse and widespread genus, Polystoma, was not monophyletic; a lineage comprising four undescribed species from the bladder of Zhangixalus spp. (Rhacophoridae) in Asia occupied a deep phylogenetic position. Regarding vicariance biogeography and molecular dating, the origin of this lineage is correlated with the breakup of Gondwanaland in the Mesozoic period. Based on a Bayesian analysis of four concatenated genes (18S, 28S, COI and 12S) and morphological evidence, one new genus, Indopolystoma n. gen., and three new species, sampled in Japan and China, are described here: Indopolystoma viridi n. sp. from Z. viridis of Japan, Indopolystoma elongatum n. sp. from Z. arboreus of Japan, and Indopolystoma parvum n. sp. from Z. omeimontis of China. Indopolystoma is unique amongst polystome genera infecting anurans by possessing a small haptor relative to the body size, posteriormost marginal hooklet C1 much bigger than hooklets C2–C8 with conspicuous broad blade and guard and a pair of hamuli lacking a deep notch. Eight species of Asian Polystoma, all from rhacophorids, are transferred as Indopolystoma carvirostris (Fan, Li & He, 2008) n. comb., I. hakgalense (Crusz & Ching, 1975) n. comb., I. indicum (Diengdoh & Tandon, 1991) n. comb., I. leucomystax (Zhang & Long, 1987) n. comb., I. mutus (Meng, Song & Ding, 2010) n. comb., I. pingbianensis (Fan, Wang & Li, 2004) n. comb., I. rhacophori (Yamaguti, 1936) n. comb., and I. zuoi (Shen, Wang & Fan, 2013) n. comb.

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Polystoma cuvieri n. sp. (Monogenea: Polystomatidae) a Parasite of the Urinary Bladder of the Leptodactylid Frog Physalaemus cuvieri in Paraguay

Cited by 13 publications

References 1 publication

Helminth community structure of 13 species of anurans from Atlantic rainforest remnants, Brazil

Helminth community structure of 13 species of anurans from Atlantic rainforest remnants, Brazil

Endoparasites infecting exotic captive amphibian pet and zoo animals (Anura, Caudata) in Germany

Indopolystoman. gen. (Monogenea, Polystomatidae) with the description of three new species and reassignment of eight knownPolystomaspecies from Asian frogs (Anura, Rhacophoridae)

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