Histopathological observations on the digestive gland ofLymnaea auricularia infected with larval trematodes

Choubisa, S. L.

doi:10.1007/bf03191868

Cited by 3 publications

(1 citation statement)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In fact, these are physiological damages in the gonads which are overlooked by researchers. However, these physiological changes are well studied histologically and histochemically in heapatopancreas of freshwater snails infected with diverse trematode larval parasites [66][67][68]. These studies revealed that starvation autolysis and necrosis are the resultant of release of proteolytic enzymes from the ruptured epithelial cells of digestive gland tubules and enzymatic secretion and metabolic excretion from larval trematode parasites as well [14].…”

Section: Mode Of Parasitic Castrationmentioning

confidence: 99%

A Brief Review of Parasitic Castration in Aquatic Snails and Its Contribution in Control of Diverse Vector Snail Populations and Trematodiases in Man and Animals

SL¹

2022

AustinJInfectDis

View full text Add to dashboard Cite

Snails are invertebrate gastropod molluscs inhabited both the terrestrial and aquatic habitats. Most of these animals are dioeciously and their sexes are separated. In many monoecious (hermaphrodite) snail species, individuals have both male and female gonads. But in pulmonate monoecious snail species individuals have only single gonad called “ovotestis” which contains both testicular and ovarian tissues. In general, aquatic snail species are intermediate hosts of digenean trematode parasites of vertebrates including man and animals. In addition, aquatic snails are also act as vector of diverse trematodiases, such as schistosomiasis, clonorchiasis, opisthorchiasis, fascioliasis, amphistomiasis, etc. The prevalence of these digenetic trematode parasitic diseases in diverse geographical provinces is depending on the population of vector or intermediate host snail species. In fact, the various larval stages of digenean trematode parasites, such as sporocysts, rediae and cercariae are developed and multiplied asexually in the organ of hepatopancreas and/or gonads of host snails. These parasitic trematode larvae also act as castrators for snails and potential to prevent or block partially or completely their reproduction called “parasitic castration”. In this biological process, trematode larvae destroy the gonads in two ways, one is mechanically and the other physiologically. Parasitic castration is also induces sex conversion, gigantism and alteration the gene expression in brain of snails. In present communication, the most common vector snail species, different forms of trematode larvae and their basic biology and mode of parasitic castration in aquatic snails and its contribution in control of diverse vector snail populations and spreading of trematodiases are considered and brief and critically reviewed. Simultaneously, research gaps have also been highlighted for further advance research work. This review is helpful in understanding of biology or mechanism of parasitic castration and its contributory role the balancing of aquatic ecosystem.

show abstract

Section: Mode Of Parasitic Castrationmentioning

confidence: 99%

A Brief Review of Parasitic Castration in Aquatic Snails and Its Contribution in Control of Diverse Vector Snail Populations and Trematodiases in Man and Animals

SL¹

2022

AustinJInfectDis

View full text Add to dashboard Cite

show abstract

First record of a rare transversotrematid cercaria larva (Trematoda: Digenea) from Rajasthan, India: focus on seasonal occurrence and host-specificity of diverse cercariae

Choubisa¹,

Jaroli²,

Sheikh³

2016

J Parasit Dis

View full text Add to dashboard Cite

During the survey of freshwater snail hosts and their digenean larval trematode parasites, a rare cercaria larva belonging to family Transversotrematidae and subclass Digenea (Trematoda) was recovered from the snail species inhabiting perennial Som river of Udaipur district, Rajasthan, India. More than 28 % mature specimens of these snails were found to be infected with transversotrematid cercaria larvae in the spring season. Body of this cercaria is large, bowl-shaped, biocellate, spinose, transparent and laterally extended having two pigmented eye spots, two hold fast organs extended from the junction of body and tail, large tail with two foliated furcal rami, and cyclocoel intestinal caeca. As far as the authors are aware, this is the first record of a transversotrematid larva from Rajasthan, India. Simultaneously, other forms of cercariae viz., amphistome, echinostome, monostome, gymnocephalous, furcocercous and xiphidiocercous cercariae were also recovered from fifteen species of pulmonate and operculate snails including f., . f. ,. f., . f. ,. f., . f. . f. , () , and () ,, () , () ,, race and . race . The seasonal occurrence and host-specificity of diverse trematode cercaria larvae are also discussed besides the first record of a rare transversotrematid cercaria larva from Rajasthan, India.

show abstract

Parasitic Castration in Freshwater Snail Melanoides tuberculatus (Mollusca: Gastropoda)

Choubisa¹,

Sheikh²

2012

Proc. Natl. Acad. Sci., India, Sect. B Biol. Sci.

View full text Add to dashboard Cite

Histopathological observations on the digestive gland ofLymnaea auricularia infected with larval trematodes

Cited by 3 publications

References 9 publications

A Brief Review of Parasitic Castration in Aquatic Snails and Its Contribution in Control of Diverse Vector Snail Populations and Trematodiases in Man and Animals

A Brief Review of Parasitic Castration in Aquatic Snails and Its Contribution in Control of Diverse Vector Snail Populations and Trematodiases in Man and Animals

First record of a rare transversotrematid cercaria larva (Trematoda: Digenea) from Rajasthan, India: focus on seasonal occurrence and host-specificity of diverse cercariae

Parasitic Castration in Freshwater Snail Melanoides tuberculatus (Mollusca: Gastropoda)

Contact Info

Product

Resources

About