Trichobilharzia regenti (Digenea: Schistosomatidae): Changes of body wall musculature during the development from miracidium to adult worm

Bulantová, Jana; Chanová, Marta; Houžvičková, Lenka; Horák, Petr

doi:10.1016/j.micron.2010.08.003

Cited by 14 publications

(14 citation statements)

References 30 publications

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“…The general pattern of phalloidin-stained F-actin in muscle fibres in the cercaria mentioned above is similar to that observed in other cercariae (see Halton and Maule 2004) and equals the muscle system in cercaria of T. regenti, which has recently been described in detail by Bulantova et al (2011). In cercariae of Schistosomatidae, the striated muscle fibres on the opposite sides of the tail contract in turns (Nuttman 1974;Reger 1976;Haas 1992).…”

Section: Discussionsupporting

confidence: 84%

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The neuro-muscular system in fresh-water furcocercaria from Belarus. I Schistosomatidae

et al. 2011

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The neuro-muscular system (NMS) in cercariae of the family Schistosomatidae from Belarus was studied with immunocytochemical methods and confocal scanning laser microscopy. The specimens of Bilharziella polonica were compared with Trichobilharzia szidati and Trichobilharzia franki. The patterns of F-actin in the musculature, 5-HT-immunoreactive (IR), FMRFamide-IR neuronal elements and α-tubulin-IR in sensory receptors and nerves were investigated. No indications of structural differences in the musculature, the 5-HT-IR, FMRF-IR neuronal elements and the general distribution of sensory receptors were noticed between cercariae of Trichobilharzia spp. The number of 5-HT-IR neurons in the cercarial bodies is 16. In cercaria B. polonica, the tail musculature is weaker than in Trichobilharzia spp. A detailed schematic picture of the NMS in the tail of Trichobilharzia spp. cercaria is given. The function of NMS elements in the tail is discussed.

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Section: Discussionsupporting

confidence: 84%

“…have been summarized by Podhorsky et al (2009). The development of the muscle system during the life cycle of Trichobilharzia regenti was recently studied by Bulantova et al (2011).…”

Section: Introductionmentioning

confidence: 99%

The neuro-muscular system in fresh-water furcocercaria from Belarus. I Schistosomatidae

et al. 2011

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“…The general pattern of body-wall musculature of daughter parthenitae has much in common among species in present research and in other studies (Popiel 1978;Popiel and James 1978;Š ebelová et al 2004;Bahia et al 2006;Bulantová et al 2011). There are always two layers: outer composed of circular fibers and inner composed of longitudinal fibers.…”

Section: Discussionsupporting

confidence: 69%

“…These papers report orthogonal grid of two muscular layers within the body wall-an outer layer, comprised of circular fibers, and an inner layer, comprised of longitudinal fibers (Popiel 1978;Popiel and James 1978;Pinheiro et al 2004;Bahia et al 2006;Terenina et al 2006;Bulantová et al 2011). This distinguishes digenean parthenogenetic generations from the hermaphroditic generation as well as from monogeneans and many other Platyhelminthes which also have a muscle layer of diagonal fibers (Hooge 2001;Halton and Maule 2004).…”

Section: Introductionmentioning

confidence: 99%

Muscle system in rediae and daughter sporocysts of several digeneans

2016

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Morphological studies on digenetic trematodes are quite numerous, but the large majority of researchers deal with the hermaphroditic generation (cercariae, metacercariae, adults). Parthenitae (miracidia, sporocysts, rediae), although they constitute a significant part of a digeneans' life cycle, attract much less attention. The sparse literature concerning the musculature of parthenitae indicates that it differs in many respects from that of digenean hermaphroditic generation and many other flatworms. We have tried to fill the knowledge gap on digenean muscle systems by focusing on daughter parthenitae (three species with rediae and two with daughter sporocysts). The study was performed using TRITC-phalloidin labeling and confocal microscopy and was aimed at both describing general trends and comparing different morphotypes. The basic body-wall muscle layers were confirmed to be composed of circular and longitudinal muscle fibers. Circular fibers form quite a uniform layer, and longitudinal fibers are typically joined into bundles. The density of muscle layers varies widely among studied species, and the possible causes of this variation are discussed. The internal muscle fibers and bundles are present in all studied species, being most prominent in the anterior region. The brood chamber and birth pore channel often have a muscular lining. The rediae pharynx has a typical set of muscle elements, mostly coinciding with one in the pharynx of the hermaphroditic generation. Taken together, our findings suggest that data on the musculature of daughter parthenitae are important from an evolutionary perspective.

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“…Penetration behavior and production of secretions stimulate neighboring cercariae to use the same entry site on the skin (177,178). Invasion of the skin is facilitated by secretions of cercarial penetration glands released from openings at the apex of the muscular head organ by spasmodic contractions of cercarial body musculature (179). The head organ performs concurrent thrust movements against the skin surface while the cercaria is firmly attached by the ventral sucker (176,178,180).…”

Section: Vertebrate Host Finding and Penetrationmentioning

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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Trichobilharzia regenti (Digenea: Schistosomatidae): Changes of body wall musculature during the development from miracidium to adult worm

Cited by 14 publications

References 30 publications

The neuro-muscular system in fresh-water furcocercaria from Belarus. I Schistosomatidae

The neuro-muscular system in fresh-water furcocercaria from Belarus. I Schistosomatidae

Muscle system in rediae and daughter sporocysts of several digeneans

Avian Schistosomes and Outbreaks of Cercarial Dermatitis

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