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Related to sporocyst: Miracidium, Metacercariae, Miracidia, rediae


1. A resting cell that produces asexual plant spores.
2. A protective structure containing the infective sporozoites of an apicomplexan parasite.
3. A saclike larval stage in many trematodes, from which the rediae emerge.


(ˈspɔːrəʊˌsɪst; ˈspɒ-)
1. (Zoology) a thick-walled rounded structure produced by sporozoan protozoans, in which sporozoites are formed
2. (Zoology) the saclike larva of a trematode worm that produces redia larvae by asexual reproduction
3. (Biology) any similar structure containing spores


(ˈspɔr əˌsɪst, ˈspoʊr-)

a. a case produced by a sporozoan.
b. the sporozoan within such a case.
2. a resting or dormant cell that produces spores.
3. the first, saclike stage of many trematode worms, giving rise to cercariae by budding.
References in periodicals archive ?
Terminal growth into the haemocoelic spaces leads to a gradual compression of the acini by the sporocyst mass that results in partial or, mostly, complete parasitic castration (Lauckner 1983, Valderrama et al.
The sporocyst contains 8 sporozoites and a round or granular residium body.
The sporocyst residuum was a spheroidal or elongate mass of densely packed granules, and the sporozoites contained a conspicuous posterior refractile body.
This might be due to the differences in humidity, temperature from place to place (variation in environmental condition), and the weather in Qena Governorate, upper Egypt was dry and hot in general as it supported by that mentioned by Smith and Sherman (1994) who mentioned that hot and humid weather is particularly conducive to sporocyst development and out breaks of clinical coccidiosis.
sporocyst and mother sporocyst, takes place within foot muscles, thereby causing increased empty spaces within muscle fibers after their entry in to the viscera of the snail.
Byrd described a new species (Table 2) of digene from larval metacercariae developing in a mother sporocyst found in a tentacle of the terrestrial snail Succinea retusa.
The primary intermediate host is castrated by the sporocyst life stage of the parasite, which asexually reproduces to form cercariae with pigment spots, ventral suckers, and tails formed of overlapping scales.
The eggs hatch in water and go through a series of developmental stages in a snail (miracidium, sporocyst, redia I, redia II, cercaria) and enter the gills, muscles or viscera of fresh-water crustaceans.
dendriticum hatch, pass through two sporocyst stages of their lives, transform into another life stage called cercaria, and migrate to the respiratory chambers of the snails.
Table 1 provides a summary of the model parameters and environmental variables, together with their units, except four parameters associated with snail and sporocyst development, discussed below, which do not appear explicitly in Figure 2.
Amaya-Huerta and Almeyda-Artigas (1994) proposed that the parasite was imported as sporocyst or redial stages within the thiarid snall Melanoides tuberculata that was possibly introduced simultaneously with the black carp from China as a food for this malacophagous fish.