Ultrastructure of the ampullary organs of Plicofollis argyropleuron (Siluriformes: Ariidae)

Whitehead, Darryl L., Gauthier, Arnault R. G., Cameron, Rochae M. E., Perutz, Marion and Tibbetts, Ian R. (2015) Ultrastructure of the ampullary organs of Plicofollis argyropleuron (Siluriformes: Ariidae). Journal of Morphology, 276 12: 1405-1411. doi:10.1002/jmor.20428


Author Whitehead, Darryl L.
Gauthier, Arnault R. G.
Cameron, Rochae M. E.
Perutz, Marion
Tibbetts, Ian R.
Title Ultrastructure of the ampullary organs of Plicofollis argyropleuron (Siluriformes: Ariidae)
Formatted title
Ultrastructure of the ampullary organs of Plicofollis argyropleuron (Siluriformes: Ariidae)
Journal name Journal of Morphology   Check publisher's open access policy
ISSN 1097-4687
0362-2525
Publication date 2015-12-01
Sub-type Article (original research)
DOI 10.1002/jmor.20428
Open Access Status Not Open Access
Volume 276
Issue 12
Start page 1405
End page 1411
Total pages 7
Place of publication Hoboken, NJ, United States
Publisher John Wiley and Sons
Collection year 2016
Language eng
Subject 1103 Clinical Sciences
1309 Developmental Biology
Formatted abstract
The morphology of ampullary organs in Plicofollis argyropleuron, collected from a southeast Queensland estuary, was examined by light and electron microscopy to assess the morphological characteristics of teleost ampullary organs in environments with fluctuating salinities. This catfish possesses both macroampullae and microampullae. Both have the typical teleost arrangement of an ampullary pore linked by a canal to a single ampulla that is lined with receptor and supportive cells. The canal wall of macroampullae consists of a collagen sheath, a basement membrane, and two layers of squamous epithelial cells adjacent to the lumen, joined by desmosomes and tight junctions near the surface of the epithelium. Ampullary pore diameters are similar in range for both the macroampullae and the microampullae, with microampullae always arising from the larger pores within a single region of the head. Canal length of the macroampullae is longer than those of the microampullae. Macroampullae also contain approximately 10 times as many receptor cells compared with the microampullae. In both organs, these pear-shaped receptor cells alternate with supportive cells along the entire luminal surface of the ampulla. The apical region of receptor cells extends into the lumen and bears numerous microvilli. The basal region of receptor cells adjoins to either individual or multiple unmyelinated neural terminals. The coexistence of two markedly different ampullary organ morphologies within a single species support theories concerning the possible multifunctionality of these sensory organs.
Keyword Catfish
Conductivity
Electroreception
Estuary
Sensory cells
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Biological Sciences Publications
School of Biomedical Sciences Publications
 
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