Valve ultrastructure of some confusing Fragilariaceae

TitleValve ultrastructure of some confusing Fragilariaceae
Publication TypeJournal Article
Year of Publication1981
AuthorsRosen BH, Lowe RL

The study of diatom taxonomy most frequently uses light microscopy to distinguish the silicous cell wall components of different species. The structures that give a characteristic appearance in the light microscope are usually patterns that reflect the ultrastructure of the cell wall that cannot be resolved adequately with this technique. Scanning electron microscopy provides a more complete concept of diatom valve structure, especially for diatoms that are less than 10 um in length. While examining a collection of epipelic diatoms from Lake Kathrine, Michigan, during 1979 and 1980, a number of small Fragilariaceae were encountered which could not be easily identified with the light microscope.