Distribution and Morphology of the Rodlet Cell in Fish

Abstract

MonnIsox, c. M., eNo P. H. oopNsp. 1978. Distribution and morphology of the rodlet cell in fish. J. Fish. Res. Board Can. 35: 101-116.A short review of the work done on the rodlet cell is presented. The morphology and distribution of rodlet cells in several species of fish, primarily marine, is described and compared with that reported by other authors, mainly in freshwater fish. The morphology in freshwater and marine fish is similar, but variations are present in different tissues ln the same fish. The rodlet cell was found in a wide range of tissues in most of the fish studied. It usually occurs in epithelia, with the apex facing the lumen. The possible function of the rodlet cell is discussed. MonmsoN, c. M., nNn P. H. oopNsr. 1978. Distribution and morphology of the rodlet cell in fish. J. Fish. Res. Board Can. 35: 101-116.Les auteurs passent bridvement en revue les travaux eftectu6s sur les bitonnets. Ils d6crivent la morphologie et la distribution des bAtonnets chez plusieurs espdces de poissons, surtout de mer. Ils les comparent avec les observations d'autres auteurs, en grande partie sur des poissons d'eau douce. La morphologie est semblable chez les poissons d'eau douce et les poissons de mer, mais il existe des variations dans diff6rents tissus d'un m6me poisson. On trouve des bdtonnets dans une gamme 6tendue de tissus chez la plupart des poissons 6tudi6s. La cellule se rencontre ordinairement dans l'6pith61ium, l'apex donnanr sur la lumidre. On analyse la fonction possible de la cellule en bitonnet.

Rhabdospora thelohani: Epidemiology of and migration into Cyprinus carpio bulbus arteriosus.

“…Numerous functions, including lubrication, osmoregulation, ion transport, sensory reception, antibiotic effects and pH control have been suggested. These hypotheses have been based primarily on the histological location of the organisms, along with observations of seasonal variation, crowding, inter and intraspecific varia tions in density, and rodlet discharge by the cells (MORRISON and ODENSE 1978;MAYBERRY et al, 1979). PLEHN (1906) hypothesized a glandular function for the organisms she observed in carp and trout bulbi.…”

“…Numerous papers have been published on various aspects of R. thelohani, or "rodlet cells" , with extensive reviews appearing in 1978(MORRISON and ODENSE 1978MAYBERRY et al, 1979). In the review by MAYBERRY et al (1979), it was argued that R. thelohani is a parasite and should be included in the subphylum Apicomplexa, at least until the life cycle is elucidated.…”

Effect of ambient and dietary cadmium on pavement cells, chloride cells, and Na+/K+-ATPase activity in the gills of the freshwater teleost Oreochromis mossambicus at normal and high calcium levels in the ambient water

“…The lymphocytes contain a relatively large nucleus sur rounded by a small rim of cytoplasm. Rodlet cells are characterised by membrane bound electron dense rodlet bodies (Morrison and Odense, 1978;Cenini, 1984).…”

Epithelium of the Intestinal Tract of a Freshwater Teleost, <i>Schizothorax curvifrons</i> Heckel (Cyprinidae, Cypriniformes, Pisces): An Ultrastructural Study

“…These distinct cells have been classified as apicomplex parasites (Bannister 1966, Iwai 1968, Barber et al 1979, Mayberry et al 1979 or, based on the species distribution and morphological features of the cells, as normal somatic cells performing a set of functions (Leino 1974, Desser and Laster 1975, Morrison and Odense 1978, Mattey et al 1979. Their occurrence in Schizothorax curvifrons is a first record for this species although their details were not worked out in this study.…”