Studies on the embryogenesis of the tapewormCittotaenia variabilis (Stiles, 1895) using transmission and scanning electron microscopy (original) (raw)
Summary
The embryogenesis of the tapeworm_Cittotaenia variabilis_ from the oocyte to the oncosphere is followed using scanning electron microscopy (SEM) in conjunction with ethanol cryofracture. Transmission electron micrographs and histochemistry are used to corroborate the inferences drawn from the SEM studies. Evidence is given for oocyte granules, the uterine epithelium, and the outer envelope as sources of components for the outer capsule. The contributions and senescence of the inner envelope and its relationship to the embryophore are given.
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Abbreviations
BL:
basal lamina
E:
embryo
EP:
embryophore
G:
oocyte granule
IE:
inner envelope
Ma:
macromere
Me:
mesomere
OC:
outer capsule
OE:
outer envelope
OM:
oncosphere membrane
On:
oncosphere
UE:
uterine epithelium
UM:
uterine matrix
UT:
uterus
V:
vacuole
References
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Authors and Affiliations
- Department of Systematics and Ecology, University of Kansas, 66045, Lawrence, Kansas, USA
William H. Coil
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Coil, W.H. Studies on the embryogenesis of the tapeworm_Cittotaenia variabilis_ (Stiles, 1895) using transmission and scanning electron microscopy.Z. Parasitenkd. 59, 151–159 (1979). https://doi.org/10.1007/BF00927397
- Received: 23 January 1979
- Issue date: June 1979
- DOI: https://doi.org/10.1007/BF00927397