Life-history traits of Fossaria cubensis (Gastropoda: Lymnaeidae) under experimental exposure to Fasciola hepatica (Trematoda: Digenea)

Gutiérrez, Alejandra; Perera, Gloria; Yong, Mary; Sánchez, Jorge; Lin, Wenwei

doi:10.1590/s0074-02762000000500025

Cited by 13 publications

(6 citation statements)

References 12 publications

(11 reference statements)

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“…However, in comparison to G. truncatula these stagnicoline snails were harder to infect and there was also clear evidence of age resistance. Lower survival of infected snails, when compared to that noted in the negative control groups, coincides with reports on this or various other trematode and snail species [21,36-38]. Increased parasite-induced mortality in juvenile snails infected with trematodes is common [39], and is usually related to i) mechanical alteration of tissues by penetration of miracidia and/or ii) the growth and migration of first-generation rediae (mother rediae) [40].…”

Section: Discussionsupporting

confidence: 89%

Lymnaea palustris and Lymnaea fuscus are potential but uncommon intermediate hosts of Fasciola hepatica in Sweden

et al. 2013

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BackgroundLymnaea palustris and L. fuscus are members of the European stagnicolines (Gastropoda: Lymnaeidae). The role of stagnicolines in transmission of Fasciola hepatica has been often proposed. To assess the possible relationship between these two stagnicolines and F. hepatica in Sweden, field monitoring in parallel with experimental infections of L. palustris and L. fuscus were conducted.MethodsStagnicoline snails were collected and identified on pastures grazed by either sheep or cattle on four farms suffering from fasciolosis in Sweden during 2011–2012. Field-collected L. palustris and L. fuscus were examined for F. hepatica DNA by PCR. In the laboratory, different age groups of L. palustris, L. fuscus and G. truncatula were each exposed to two F. hepatica miracidia and main infection characteristics were obtained.ResultsOne field-collected L. palustris (out of n = 668) contained F. hepatica as determined by PCR. On the other hand, stagnicolines artificially exposed to F. hepatica miracidia resulted in successful infection with fully differentiated cercariae, but only in juvenile snails (size, 1–2 mm at exposure) and with a prevalence of 51% and 13% in L. palustris and L. fuscus, respectively. In contrast, 90% of juvenile (size, 1–2 mm) and 92% of preadult G. truncatula (size, ≥ 2-4 mm), respectively, were successfully infected. Delayed, reduced and/or no spontaneous cercarial shedding was observed in the two stagnicolines when compared to G. truncatula. However, at snail dissection most cercariae from L. fuscus and L. palustris were able to encyst similarly to those from G. truncatula.ConclusionBoth L. fuscus and L. palustris can sustain larval development of F. hepatica but with an apparent level of age resistance. The finding of a single F. hepatica positive specimen of L. palustris, together with infection characteristics from the experimental infection, suggest that L. palustris is a more suitable snail vector of F. hepatica than L. fuscus. The reduced growth observed in both stagnicolines was contrary to the ‘parasitic gigantism’ theory. Overall, it seems that the epidemiological role of L. palustris in transmission of F. hepatica in Sweden is likely to be much lower than for G. truncatula.

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Section: Discussionsupporting

confidence: 89%

Lymnaea palustris and Lymnaea fuscus are potential but uncommon intermediate hosts of Fasciola hepatica in Sweden

et al. 2013

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“…cubensis -F. hepatica system in which juvenile infected snails grow faster and reach larger sizes than the controls, although fecundity was reduced (Gutie´rrez et al 2000). On the other hand, individuals infected during their adult phase did not show an enhanced growth at any time of infection, their egg production being increased during the prepatent period and decreased and stopped at some point during the patent period (Gutie´rrez et al 2000). Wilson and Denison (1980) showed that F. hepatica castrated and stimulated shell growth in Lymnaea truncatula.…”

Section: Discussionmentioning

confidence: 99%

“…However, data for the Fos. cubensis -F. hepatica system was recently published (Gutie´rrez et al 2000). In this paper, we analyse the influence of F. hepatica development on some of the life history traits of three Cuban isolates of P. columella, one of which is refractory to the parasite infection.…”

Section: Introductionmentioning

confidence: 99%

Fasciola hepatica (Trematoda: Digenea): its effect on the life history traits of Pseudosuccinea columella (Gasteropoda: Lymnaeidae), an uncommon interaction

et al. 2002

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An uncommon snail-trematode interaction pattern was found for the Pseudosuccinea columella - Fasciola hepaticamodel under laboratory conditions. Week-old juveniles from two isolates showed very high rates of infection (90.0% and 93.3%) after exposure to five miracidia. They also showed differences in their life history traits when compared to a control group. However, they did not exhibit the increase in size and reduction/cessation in host fecundity which is usually observed in most of the other related snail-trematode systems. In contrast, infected juvenile P. columella showed increased egg laying after the onset of cercarial emission and there was no effect on growth. A third isolate of P. columella was found to be refractory to miracidial infection. This constitutes the first report of non-susceptibility to F. hepatica in a lymnaeid species which is usually susceptible. These non-susceptible snails exhibited lower fecundity and survival compared to non-exposed susceptible snails under identical laboratory conditions. The differences observed in terms of life span and reproduction could result from the cost of resistance for individuals from this isolate.

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“…All the above processes were monitored using a magnifying lens. The offspring of exposed (infected snail) and offspring of control snails were monitored [16] for longevity.…”

Section: Hatching the Eggs And Infecting The Snailmentioning

confidence: 99%

In vitro Studies on the Effects of Cercariae Shedding (Schistosoma Parasitosis) on Fecundity, Hatchability and Longevity of Bulinus globosus

Obisike¹,

Imandeh²,

Amuta³

et al. 2017

AJRIMPS

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Schistosomiasis is considered the second most prevalent worldwide parasitic disease ranked next to malaria. Bulinus globosus is one of the intermediate hosts for Schistosoma haematobium. Aim: This research work investigated the effects of cercariae shedding (schistosoma parasitosis) on fecundity, hatchability, and longevity of Bulinus globosus in vitro. Study Design/Methodology: One hundred snail eggs were hatched and grown in vitro. Fifty (50) were infected with miracidia while fifty (50) were treated as control. Observations were made on cercariae shedding, fecundity, hatchability and longevity of the snails. Results:The result shows significance difference in the longevity rate between infected and control snails in their offspring's P<0.05. There was also high fecundity rate in control snails (84%).

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Life-history traits of Fossaria cubensis (Gastropoda: Lymnaeidae) under experimental exposure to Fasciola hepatica (Trematoda: Digenea)

Cited by 13 publications

References 12 publications

Lymnaea palustris and Lymnaea fuscus are potential but uncommon intermediate hosts of Fasciola hepatica in Sweden

Lymnaea palustris and Lymnaea fuscus are potential but uncommon intermediate hosts of Fasciola hepatica in Sweden

Fasciola hepatica (Trematoda: Digenea): its effect on the life history traits of Pseudosuccinea columella (Gasteropoda: Lymnaeidae), an uncommon interaction

In vitro Studies on the Effects of Cercariae Shedding (Schistosoma Parasitosis) on Fecundity, Hatchability and Longevity of Bulinus globosus

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