Gulf and Caribbean Research

Alternate Title

Ultrastructure of Lymphocystis in the Heart of the Silver Perch, Bairdiella chrysura (Lacépède), Including Observations on Normal Heart Structure

Authors

Harold D. Howse, Gulf Coast Research Laboratory
Adrian R. Lawler, Gulf Coast Research LaboratoryFollow
William E. Hawkins, Gulf Coast Research LaboratoryFollow
Carolyn A. Foster, Gulf Coast Research Laboratory

Document Type

Article

Abstract

The fine structure of normal heart muscle from the silver perch, Bairdiella chrysura (Lacépède), is similar to that previously reported for marine and freshwater teleosts.

Cardiac lymphocystis is a viral disease manifested by single, giant-cell lesions variously located in the epicardium, trabecular spaces, and subendocardium – in direct apposition to myocardial cells. Occasionally, the hyaline capsule of lymphocystis cells partially surround myocardial cells but cause no pathological changes or inflammatory reaction.

The lymphocystis cells contain typical cellular organelles, including the viroplasmic net unique to these cells. Annulate lamellae, often continuous with the rough endoplasmic reticulum, are present, usually along the periphery of the cell. Some elements of the rough endoplasmic reticulum are dilated and contain a finely granular material, but others contain cross-banded fibrils, each having a periodicity of 30 nm. Similar fibrils are present in the perinuclear cisternae.

First Page

39

Last Page

57

DOI Link

https://doi.org/10.18785/grr.0601.05

Recommended Citation

Howse, H. D., A. R. Lawler, W. E. Hawkins and C. A. Foster. 1977. Ultrastructure of Lymphocystis in the Heart of the Silver Perch, Bairdiella chrysura (Lacépède), Including Observations on Normal Heart Structure. Gulf Research Reports 6 (1): 39-57.
Retrieved from https://aquila.usm.edu/gcr/vol6/iss1/5
DOI: https://doi.org/10.18785/grr.0601.05