sporocyst

/spawr-uh-sist, spohr-/US // ˈspɔr əˌsɪst, ˈspoʊr- //UK // (ˈspɔːrəʊˌsɪst, ˈspɒ-) //

孢子囊,孢囊

Definitions

n.名词 noun

1
Biology.
- : a walled body resulting from the multiple division of a sporozoan, which produces one or more sporozoites.
- : a stage in development of trematodes that gives rise, asexually, to cercaria.

Within this snail—Linnæa truncatula—the egg develops into a sac-like body, called a sporocyst.
We sometimes find the cercarian age passed over, and the young distomes appear abundantly without tails in the sporocyst.
We may give more than one description of the distomian embryo as it leaves its sporocyst.
When stripped of their swimming tunic, these young distomes have the form of a bag, which for a long time was called a sporocyst.
The embryo, having long cili in front, and in the interior a sporocyst already full of young cercari, is shown in Fig. 44.