The morphology and the histochemistry from the mucus of the posterior esophagus of the winter flounder and the yellowtail flounder were examined using light and electron microscopy. The esophageal mucosa of both species was organized into elaborate branching folds. The epithelium consisted of a stra...

The histology and mucus histochemistry of the pleuronectid post-gastric alimentary canal was examined using light and electron microscopy. Distinct differences in goblet cell mucus histochemistry were observed between species, with the two closest taxonomic species, the winter flounder and the yello...

BACKGROUND: Adenosine triphosphate (ATP) is a critical determinant of beta-cell insulin secretion in response to glucose. BHE/cdb rats have a mutation in ATP synthase that limits ATP production, yet develop mild diabetes only with ageing. We investigated the cellular basis for reduced insulin secret...

An introduction to vertebrate functional morphology / Pieter Dullemeijer -- The cartilaginous skeleton of the sea lamprey: a family of non-collagen-based cartilages / Glenda M. Wright and Fred W. Keeley -- Evolutionary transformations of the respiratory islets of air-breathing organs in teleostean f...

A dermal capillary network was found in three species of hagfishes (Myxine glutinosa, Paramyxine atami, Eptatretus stoutii) and in the adults of three species of lampreys (Geotria australis, Lampetra japonica, Petromyzon marinus). However, it was found neither in the ammocoetes of any of the species...

Cartilage structures of the sea lamprey, Petromyzon marimus, have previously been reported to stain by the Verhoeff method for elastin and to have a morphology similar to that of elastic cartilage of higher vertebrates. Earlier we showed that lamprin, the major matrix protein of lamprey annular cart...

Processes involving self-assembly of monomeric units into organized polymeric arrays are currently the subject of much attention, particularly in the areas of nanotechnology and biomaterials. One biological example of a protein polymer with potential for self-organization is elastin. Elastin is the ...

Light and electron microscopy and in vitro inflation experiments were conducted on the aortae of three different invertebrate species: the lobster Homarus americanus, the horseshoe crab Limulus polyphemus and the whelk Busycon contrarium. Inflation experiments were also performed on the aortae of tw...

P. salmonis, the aetiologic agent of salmonid rickettsial septicaemia (SRS), affects several species of salmonids. Previous reports using the appearance of cytopathic effect (CPE) as the criterion for susceptibility, showed that P. salmonis (ATCC strain) can be grown in vitro in some cells lines der...