Author:
Palisano John R.,Renzaglia Karen S.
Abstract
Knowledge of the origin and function of confronting cisternae (CC) and annulate lamellae (AL) has been limited because they are so infrequently observed. CC were first described by Porter in 1955 and have since been observed in a variety of rapidly proliferating tumor cells and selected fetal tissues. AL were first reported in 1952 by McCullough in sea urchin eggs. Although AL have since been observed in a variety of cells, they have been predominately found in oocytes, spermatocytes, and tumor cells. A microscopic study was initiated to gain a better understanding of the origin and role of these two membranous organelles that are frequently found in rapidly dividing cells that lose the ability to express these organelles once their rapid proliferative stage ceases. Because it has proven difficult to interpret the flow of membrane in the mitotic cell by electron microscopy alone, data obtained by electron microscopy was correlated with fluorescence microscopy wherever possible.
Publisher
Cambridge University Press (CUP)
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1. 9. This research was supported in part by NSF Grant DEB-9207646 to KSR and an ROA supplement to this grant enabling JRP to work at ETSU during the summer of 1993. JRP was the recipient of a faculty development grant from the University of the South.
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