Abstract
Foraminifera (“forams”) are important to micropaleontology as stratigraphic indicators and within this context the literature is extensive. Comparatively, biological studies are few. The striking bidirectional cytoplasmic streaming in the reticulopo-dial network (RPN) of some forams has been of primary interest. Only recently has their potential as a model system for other aspects of cellular transport been recognized. The naked foraminiferan Allogromia sp. (N.F.Lee), is particularly well suited for such studies. We have found that by plating these forams on coverslips treated with protamine sulfate (1.5 mg/ml) the flexible theca flattens, thus exposing the cell body contents and complex patterns of cytoplasmic streaming to the light microscope (LM). Our aim is to take advantage of the ease with which correlative LM and EM techniques can now be applied to the study of function and transport of components in both the cell body (CB) and RPN.
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