Diatom Cell Structure Diagram - Microscopic Anatomy and Frustule Details #17614 (License: Personal Use)

This vintage-style line drawing illustrates the ultrastructure of a centric diatom, with labeled components such as the central nucleus (1), chloroplasts (2), and peripheral vacuoles or plastids (3). The right-side view emphasizes the ornate, radially symmetric frustule with girdle bands (ha, st, cs) and strut-like processes extending outward. Such diagrams are foundational in phycology for understanding diatom taxonomy, photosynthetic adaptation, and biomineralization mechanisms.

Used in academic textbooks, online biology courses, museum exhibits, and scientific publications to teach diatom morphology; targets students, researchers, and educators seeking visual aids for microbial eukaryote anatomy.