1984
DOI: 10.2307/3281407
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Transmission Electron Microscopy of the Tegumentary Sense Organs of Cotylogaster occidentalis (Trematoda: Aspidogastrea)

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Cited by 28 publications
(15 citation statements)
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“…The cilium or distal end of the cilium of sensory dendrites believed to be mechanoreceptors often contain bundles of parallel microtubules, bridges or dark matter. For example, dark matter has been found at the tip of the cilium of what is believed to be a mechanoreceptor in Cotylogaster occidentalis, an aspidogastrean (Ip and Desser, 1984) as well as in an undescribed species of nematode (Wright, 1992) and some Arthropoda (e.g., free-living calanoid copepods: Weatherby and Lenz, 2000). No such dark matter was seen in the sensilla of M. icopae although cilium tips were not specifically sectioned.…”
Section: Discussionmentioning
confidence: 92%
See 1 more Smart Citation
“…The cilium or distal end of the cilium of sensory dendrites believed to be mechanoreceptors often contain bundles of parallel microtubules, bridges or dark matter. For example, dark matter has been found at the tip of the cilium of what is believed to be a mechanoreceptor in Cotylogaster occidentalis, an aspidogastrean (Ip and Desser, 1984) as well as in an undescribed species of nematode (Wright, 1992) and some Arthropoda (e.g., free-living calanoid copepods: Weatherby and Lenz, 2000). No such dark matter was seen in the sensilla of M. icopae although cilium tips were not specifically sectioned.…”
Section: Discussionmentioning
confidence: 92%
“…If secretory, these vesicles could introduce material into the 'pseudoreceptor' space that might enhance the receptor process in the same fashion that odour-binding proteins have been postulated to function in insects (see Steinbrecht, 1992). It would be informative to determine whether vesicles are present external to the dendrites of suspected mechanoreceptors in the Platyhelminthes, such as those found by Ip and Desser (1984) because if not, it may suggest that their presence is indicative of chemoreception. We have consistently found vesicles internal and external to the base of many sensilla types in our ultrastructural studies of many monogeneans (unpublished observations).…”
Section: Discussionmentioning
confidence: 96%
“…bp button-like papillae (without pores), ep embedded papilla, mr microridges, ocp oral cavity papilla, p pits, tp toothed papilla, vsp1 large sized papilla, vsp2 small sized papilla. Scale-bars 10 lm in a, b, f, 2 lm in c, 50 lm in d, 20 lm in e surrounding environment (Ip and Desser 1984;Chai et al 1992). The sensory receptors in Allogenarchopsis are scattered between the two rows of papillae on the ventral sucker and the flexibility of the ventral sucker armed with sensory receptors may contribute in sensing a suitable site for attachment in the host body.…”
Section: Fine Structure Of Body Surfacementioning
confidence: 99%
“…Based on their distributions around the oral sucker, they are supposed to sense delicate contacts with (Morris and Threadgold 1967). Ip and Desser (1984) argued that type I papillae may function as mechano-or chemoreceptors since the cilium extruded long throughout the tegument, enabling chemical components to be sensed in the environment. Hence, ciliated sensory papillae with a short or long cilium were suggested to function as tango-, rheo-, and/or chemoreceptors (Koie 1977;Lee et al 1984;Smales and Blankespoor 1984;Hong et al 1991).…”
Section: Discussionmentioning
confidence: 99%