frustule

Description:

Stephanopyxis (steff-ann-o-pick-sus) palmeriana, a filament-forming centric diatom in which the cells are linked together by processes arising from the valves. The valves are the hemispherical regions at the ends of the cell, and have a hexagonal texture, and the girdle is the region in the middle. The golden colour from plastids which contain chlorophylls a and c, but more significantly with carotenoids such as fucoxanthin which provide the distinctive colour. Differential interference microscopy.

data on this strain.