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...
8 KB (943 words) - 19:49, 4 October 2023
cell wall made of silica (hydrated silicon dioxide), called a frustule. These frustules produce structural coloration, prompting them to be described...
148 KB (15,286 words) - 01:00, 24 July 2024
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"...
6 KB (656 words) - 13:28, 30 September 2023
-2). Their frustules remain undissolved because they are surrounded by an organic matrix. Clay minerals may also precipitate on the frustules and protect...
40 KB (4,357 words) - 01:45, 9 August 2024
known as diatoms construct their exoskeletons ("frustules") from silica extracted from seawater. The frustules of dead diatoms are a major constituent of deep...
20 KB (1,897 words) - 18:21, 16 July 2024
groups of diatoms it refers to microscopically punctured regions of the frustule, or outer layer. In certain groups of spider species, so-called cribellate...
8 KB (931 words) - 15:34, 28 December 2023
known as frustules or valves) from silicic acid. Significantly, relative to the organic cell walls produced by other groups, silica frustules require less...
43 KB (4,780 words) - 15:37, 19 August 2024
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...
86 KB (10,640 words) - 12:04, 13 August 2024
the limited availability of silicon, a necessary constituent of diatom frustules. As a consequence of these blooms, benthic macrophyte populations were...
117 KB (11,740 words) - 19:41, 19 August 2024
(glass) are common in marine biominerals, where diatoms and radiolaria form frustules from hydrated amorphous silica (opal). The major carbonate in biominerals...
99 KB (10,362 words) - 10:37, 23 June 2024