Morphology, ultrastructure, and implied function of ciliated sensory structures on the developmental stages of Merizocotyle icopae (Monogenea : Monocotylidae)

Cribb, Bronwen, Chisholm, Leslie, Gould, Robert and Whittington, Ian (2003) Morphology, ultrastructure, and implied function of ciliated sensory structures on the developmental stages of Merizocotyle icopae (Monogenea : Monocotylidae). Microscopy Research And Technique, 62 3: 267-276. doi:10.1002/jemt.10387


Author Cribb, Bronwen
Chisholm, Leslie
Gould, Robert
Whittington, Ian
Title Morphology, ultrastructure, and implied function of ciliated sensory structures on the developmental stages of Merizocotyle icopae (Monogenea : Monocotylidae)
Journal name Microscopy Research And Technique   Check publisher's open access policy
ISSN 1059-910X
Publication date 2003-10-15
Sub-type Article (original research)
DOI 10.1002/jemt.10387
Volume 62
Issue 3
Start page 267
End page 276
Total pages 10
Place of publication New York, NY, U.S.A.
Publisher Wiley-Liss
Collection year 2003
Language eng
Subject C1
270504 Invertebrate Biology
630303 Aquaculture
Abstract Experimental infections were used to track the fate of the dorsal sensilla of Merizocotyle icopae (Monogenea: Monocotylidae) from nasal tissue of the shovelnose ray, Rhinobatos typus (Rhinobatidae). Scanning and transmission electron microscopy revealed that 3 types of uniciliate dorsal sensilla exist at different times in the development of the monogenean. Type 1 sensilla have little or no invagination where the cilium exits the distal end of the dendrite and possess a ring of epidermis surrounding the cilium distal to the invagination. Type 2 sensilla have a deep invagination where the cilium exits the dendrite. Type 3 sensilla can be distinguished from the other types by the shape of the dendrite. The larvae have predominantly Type I dorsal sensilla, most of which are lost approximately 24 h after infection and a few Type 2 sensilla, which are retained. Additional Type 2 sensilla (termed Adult Type 2 sensilla), which are slightly different morphologically from the Type 2 sensilla of the larvae, form in later stages of development. Numerous Type 3 sensilla are unique to the dorsal surface of adults. Loss of all Type I sensilla upon attachment to the host, R. typus, suggests that these may be chemo- or mechanoreceptors responsible for host location by the swimming infective larvae. Type 2 sensilla appear to be important in the larvae, juveniles, and adults whereas the modality mediated by Type 3 is specific to adults. (C) 2003 Wiley-Liss, Inc.
Keyword Anatomy & Morphology
Biology
Microscopy
Sensilla
Chemoreception
Behaviour
Epidermis
Tegument
Parasite
Flatworm
Electron
Sem
Entobdella-soleae
Rhinobatos-typus
Skin Parasites
Gill Parasite
Heron-island
Behavior
Platyhelminthes
Organs
Larvae
Q-Index Code C1

 
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Created: Tue, 14 Aug 2007, 19:14:11 EST