A frustule is the hard and porous cell wall or external layer of diatoms. The frustule is composed almost purely of silica, made from silicic acid, and...

cell wall made of silica (hydrated silicon dioxide), called a frustule. These frustules produce structural coloration, prompting them to be described...

groups of diatoms it refers to microscopically punctured regions of the frustule, or outer layer. In certain groups of spider species, so-called cribellate...

-2). Their frustules remain undissolved because they are surrounded by an organic matrix. Clay minerals may also precipitate on the frustules and protect...

blastoids), the correct word is "theca". For diatomea, the term in use is "frustule", and for radiolarians it should be "capsule". The more common word "shell"...

known as diatoms construct their exoskeletons ("frustules") from silica extracted from seawater. The frustules of dead diatoms are a major constituent of deep...

known as frustules or valves) from silicic acid. Significantly, relative to the organic cell walls produced by other groups, silica frustules require less...

protective silica (glass) shells called frustules. The beautifully engineered and intricate structure of many of these frustules is such that they are often referred...

protein (SIT) to be predominantly used in the cell wall structure as frustules. Silicon enters the ocean in a dissolved form such as silicic acid or...

the limited availability of silicon, a necessary constituent of diatom frustules. As a consequence of these blooms, benthic macrophyte populations were...