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Structure of the Tegument and Ectocommensal Microorganisms of Gyliauchen nahaensis (Digenea: Gyliauchenidae), an Inhabitant of Herbivorous Fish of the Great Barrier Reef, Australia

Sheree R. Hughes-Stamm, Thomas H. Cribb and Malcolm K. Jones
The Journal of Parasitology
Vol. 85, No. 6 (Dec., 1999), pp. 1047-1052
DOI: 10.2307/3285667
Stable URL: http://www.jstor.org/stable/3285667
Page Count: 6
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Structure of the Tegument and Ectocommensal Microorganisms of Gyliauchen nahaensis (Digenea: Gyliauchenidae), an Inhabitant of Herbivorous Fish of the Great Barrier Reef, Australia
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Abstract

The ultrastructure of the tegument and tegument-associated microorganisms of the gyliauchenid digenean Gyliauchen nahaensis is described by transmission and scanning electron microscopy. The tegument is devoid of surface spines and is characterized by a moderately folded apical membrane, abundant vesicles, basal mitochondria, a folded basal plasma membrane, and a thick basal matrix. Microorganisms form a dense biofilm on the tegument of the posterodorsal surface and the excretory papilla. At least 7 microbial morphotypes were identified, including eubacteria, spirochaetes, and nanobacteria.

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