LOCATION AND EXPRESSION OF FRUSTULINS IN THE PENNATE DIATOMS CYLINDROTHECA FUSIFORMIS, NAVICULA PELLICULOSA, AND NAVICULA SALINARUM (BACILLARIOPHYCEAE).

Reports on a detailed immunocytochemical and biochemical study of the location and expression of frustulins, a family of proteins associated with the frustules of diatoms, for Cylindrotheca fusiformis Reimann et Lewin, Navicula pelliculosa Hilse and Navicula salinarum Husted. Predominant location of the frustulins in the organic casing; Implication of a structural role of the frustulins in the casing of diatoms rather than a regulation of the silicification process.