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Type: Journal article
Title: A comparison of the anterior adhesive system in the oncomiracidium and adult of the monogenean parasite Merizocotyle icopae (Monocotylidae)
Author: Whittington, I.
Armstrong, W.
Chisholm, L.
Cribb, B.
Citation: Parasitology Research, 2004; 93(3):223-229
Publisher: Springer
Issue Date: 2004
ISSN: 0932-0113
Statement of
I. D. Whittington, W. D. Armstrong, L. A. Chisholm and B. W. Cribb
Abstract: The anterior adhesive system of the oncomiracidium and adult of Merizocotyle icopae (Monogenea: Monocotylidae) were compared. The oncomiracidium has one ventrally placed aperture on either side of the head near the anterior extremity. In the adult, there are three ventrally placed apertures on either side of the head region. Both systems have three types of electron-dense secretory bodies opening into each aperture. A rod-shaped secretion (S1) and a small electron dense ovoid secretion (S2) are common to larvae and adults. The third secretion type differs: in adults, it is a large, spherical (S3) type but in larvae, it is an ovoid (S4) body. S4 bodies do occur in adults, but appear to be secreted as a general body secretion. An additional anteromedian secretion (S5) is also present in the oncomiracidium, but is not secreted into the anterior apertures. Homology and function of secretions are discussed.
Keywords: Head
Trematode Infections
Fish Diseases
Microscopy, Electron, Scanning
Microscopy, Electron, Transmission
Skates, Fish
Description: The original publication can be found at
DOI: 10.1007/s00436-004-1086-8
Appears in Collections:Aurora harvest 2
Earth and Environmental Sciences publications
Environment Institute publications

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