Effects of Trichobilharzia ocellata on growth, reproduction, and survival of Lymnaea stagnalis

McClelland, G. A. H.; Bourns, T. K. R.

doi:10.1016/0014-4894(69)90150-7

Cited by 103 publications

(46 citation statements)

References 8 publications

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“…A limited number of studies have focused on survival rates of avian schistosome-infected versus uninfected snails. As an example, 90% of L. stagnalis snails infected experimentally with a single miracidium of T. ocellata (North American isolate) were alive at 28 weeks of age (three infected snails were alive for 19 months), whereas all uninfected snails were dead (168). In contrast, L. stagnalis or Planorbarius corneus snails naturally infected with T. szidati or Bilharziella polonica, respectively, lived a shorter time, on average, than the corresponding uninfected individuals (169,170).…”

Section: Molluscan and Avian Host Specificitymentioning

confidence: 99%

Avian Schistosomes and Outbreaks of Cercarial Dermatitis

et al. 2015

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SUMMARY Cercarial dermatitis (swimmer's itch) is a condition caused by infective larvae (cercariae) of a species-rich group of mammalian and avian schistosomes. Over the last decade, it has been reported in areas that previously had few or no cases of dermatitis and is thus considered an emerging disease. It is obvious that avian schistosomes are responsible for the majority of reported dermatitis outbreaks around the world, and thus they are the primary focus of this review. Although they infect humans, they do not mature and usually die in the skin. Experimental infections of avian schistosomes in mice show that in previously exposed hosts, there is a strong skin immune reaction that kills the schistosome. However, penetration of larvae into naive mice can result in temporary migration from the skin. This is of particular interest because the worms are able to migrate to different organs, for example, the lungs in the case of visceral schistosomes and the central nervous system in the case of nasal schistosomes. The risk of such migration and accompanying disorders needs to be clarified for humans and animals of interest (e.g., dogs). Herein we compiled the most comprehensive review of the diversity, immunology, and epidemiology of avian schistosomes causing cercarial dermatitis.

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Section: Molluscan and Avian Host Specificitymentioning

confidence: 99%

Avian Schistosomes and Outbreaks of Cercarial Dermatitis

et al. 2015

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“…Larval trematodes have been reported to induce an increase in the calcium levels (hypercalcification) of their first intermediate snail hosts (McClelland and Bourns 1969;Cheng 1971;Malek and Cheng 1974;Sluiters et al 1980;Pinheiro and Amato 1995). Most of these studies were based on experimental miracidial infections of snails in the laboratory (see for example Pinheiro and Amato 1995), but others involved naturally infected snail hosts (Cheng 1971).…”

Section: Introductionmentioning

confidence: 98%

Effects of various larval digeneans on the calcium carbonate content of the shells of Helisoma trivolvis, Biomphalaria glabrata, and Physa sp.

et al. 2005

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The calcium carbonate concentrations in the shells of Helisoma trivolvis and Physa sp. naturally infected with larval trematodes and Biomphalaria glabrata experimentally infected with larval trematodes were analyzed quantitatively. The larval trematode-snail relationships studied were H. trivolvis infected with larval Echinostoma trivolvis and Physa sp. infected with various larval digeneans, and B. glabrata infected with Echinostoma caproni or Schistosoma mansoni. The calcium carbonate concentrations of the shells of infected snails and uninfected cohorts and of the water in which the snails were maintained were determined by ion exchange chromatography. No significant differences in the calcium carbonate concentrations of shells of infected versus uninfected snails were found. The shells of B. glabrata infected with E. caproni contained significantly less calcium carbonate than the shells of uninfected B. glabrata. The hypercalcification hypothesis, i.e., larval trematodes induce an increase in the calcium concentrations in the shells of their snail hosts, was not upheld in any of the snail-larval digenean systems studied herein.

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“…Snails and intramolluscan stages of trematode are very interesting models for studying host-parasite interactions. Parasitic larvae can cause the castration (Lafferty 1993;Mouritsen and Jensen 1994;Zakikhani and Rau 1998;Probst and Kube 1999;Sorensen and Minchella 2001), compensative fecundity (Hodasi 1972;Gerard and Theron 1997;Gutierrez et al 2002), gigantism (Wesenberg-Lund 1934;McClelland and Bourns 1969;Meuleman 1972;Wilson and Denison 1980), and affect longevity of host (Minchella et al 1985;_ Zbikowska, 2004). Those parasites can also generate many defense reactions of parasitized mollusks: leucocytosis in their hemolymph and agglutination, phagocytosis or incapsulation of parasites (Bayne 1983;Loker et al 1992;Horak and Deme 1998;Matricon-Gordan and Letocart 1999;Sapp and Loker 2000;Vignoles et al 2003).…”

Section: Introductionmentioning

confidence: 98%

Do larvae of trichobilharzia szidati and echinostoma revolutum generate behavioral fever in lymnaea stagnalis individuals?

Żbikowska

2005

Parasitol Res

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The objective of this study was to determine whether individuals of Lymnaea stagnalis naturally parasitized with Trichobilharzia szidati and Echinostoma revolutum can generate the behavioral fever against larvae of those parasites. Thermal preferences of each snail were examined in an oblong thermal gradient during 48 h observation. Uninfected animals under study chose higher temperatures than those releasing cercariae of parasites. Infected snails kept in constant temperature lived shorter than uninfected ones. At high temperature, they released more cercariae per day than at low temperature. Temperature had a great influence on the longevity of emerged cercariae. The thermal behavior of infected snails is not a symptom of behavioral fever but probably can play a therapeutic role in the host.

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Effects of Trichobilharzia ocellata on growth, reproduction, and survival of Lymnaea stagnalis

Cited by 103 publications

References 8 publications

Avian Schistosomes and Outbreaks of Cercarial Dermatitis

Avian Schistosomes and Outbreaks of Cercarial Dermatitis

Effects of various larval digeneans on the calcium carbonate content of the shells of Helisoma trivolvis, Biomphalaria glabrata, and Physa sp.

Do larvae of trichobilharzia szidati and echinostoma revolutum generate behavioral fever in lymnaea stagnalis individuals?

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