Please use this identifier to cite or link to this item: http://hdl.handle.net/10201/19048

Full metadata record
DC FieldValueLanguage
dc.contributor.authorCollin, S.P.es
dc.contributor.authorCollin, H.B.es
dc.date.accessioned2011-02-22T10:58:23Z-
dc.date.available2011-02-22T10:58:23Z-
dc.date.issued1998-
dc.identifier.issn0213-3911es
dc.identifier.urihttp://hdl.handle.net/10201/19048-
dc.description.abstractThe corneal structure of three deep-sea species of teleosts (Gadiformes, Teleostei) from different depths (250-4000 m) and photic zones are examined at the leve1 of the light and electron microscopes. Each species shows a similar but complex arrangement of layers with a cornea split into dermal and scleral components. The dermal cornea comprises an epithelium overlying a basement membrane and a dermal stroma with sutures and occasional keratocytes. Nezumia aequalis is the only species to possess a Bowman's layer, although it is not well-developed. The scleral cornea is separated from the dermal cornea by a mucoid layer and, in contrast to shallow-water species, is divided into three main layers; an anterior scleral stroma, a middle or iridescent layer and a posterior scleral stroma. The iridescent layer of collagen and intercalated cells or cellular processes is bounded by a layer of cells and the posterior scleral stroma overlies a Descemet's membrane and an endothelium. In the relatively shallow-water Microgadus proximus, the keratocytes of the dermal stroma, the cells of the iridescent layer and the endothelial cells al1 contain aligned endoplasmic reticulum, which may elicit an iridescent reflex. No alignment of the endoplasmic reticulum was found in N. aequalis or Coryphanoides (Nematonurus) armatus. The relative differences between shallow-water and deep-sea corneas are discussed in relation to the constraints of light, depth and temperature.es
dc.formatapplication/pdfes
dc.format.extent12es
dc.languageenges
dc.publisherMurcia : F. Hernándezes
dc.relation.ispartofHistology and histopathologyes
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.subjectCorneaes
dc.subjectUltrastructurees
dc.subject.otherCDU::6 - Ciencias aplicadas::61 - Medicinaes
dc.titleThe deep-sea teleost cornea, a comparative study of gadiform fisheses
dc.typeinfo:eu-repo/semantics/articlees
Appears in Collections:Vol.13, nº 2 (1998)

Files in This Item:
File Description SizeFormat 
The deepsea teleost cornea a comparative study of gadiform fishes.pdf944,22 kBAdobe PDFThumbnail
View/Open


Items in Digitum are protected by copyright, with all rights reserved, unless otherwise indicated.