• Thumbnail for Frustule
    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
  • Thumbnail for Diatom
    cell wall made of silica (hydrated silicon dioxide), called a frustule. These frustules produce structural coloration, prompting them to be described...
    147 KB (15,244 words) - 06:03, 28 April 2024
  • Thumbnail for Test (biology)
    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
  • Thumbnail for Diatomaceous earth
    -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 (4,288 words) - 19:59, 27 April 2024
  • Thumbnail for Silicate mineral
    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) - 18:13, 5 February 2024
  • Thumbnail for Marine life
    Diatoms have glass like cell walls made of silica and called frustules. Fossil diatom frustule from 32 to 40 mya Radiolarian Single-celled alga, Gephyrocapsa...
    304 KB (29,026 words) - 22:50, 26 April 2024
  • Thumbnail for Biomineralization
    (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) - 07:07, 23 March 2024
  • Thumbnail for Cell wall
    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 (4,782 words) - 22:49, 26 April 2024
  • Thumbnail for Protist shell
    protective silica (glass) shells called frustules. The beautifully engineered and intricate structure of many of these frustules is such that they are often referred...
    41 KB (3,833 words) - 23:31, 29 March 2024
  • Thumbnail for Black Sea
    the limited availability of silicon, a necessary constituent of diatom frustules. As a consequence of these blooms, benthic macrophyte populations were...
    115 KB (11,611 words) - 18:13, 27 April 2024
  • Thumbnail for Silicon
    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...
    85 KB (10,618 words) - 00:59, 25 April 2024
  • Thumbnail for Cribellum
    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
  • Thumbnail for Microbial cyst
    General: Mastigoneme Diatoms: Frustule Brown algae: Lamina Pneumatocyst...
    20 KB (2,512 words) - 06:50, 23 February 2024
  • Thumbnail for Jellyfish
    the polyp and grow. Limnomedusae polyps can asexually produce a creeping frustule larval form, which crawls away before developing into another polyp. A...
    118 KB (12,317 words) - 17:25, 6 April 2024
  • Thumbnail for Silicon dioxide
    (invertebrates and vertebrates). Prominent examples include: Tests or frustules (i.e. shells) of diatoms, Radiolaria, and testate amoebae. Silica phytoliths...
    62 KB (6,592 words) - 15:43, 17 April 2024
  • Thumbnail for Plankton
    protected with mineralized shells or tests. Diatoms have glass shells (frustules) and produce much of the world's oxygen. The elaborate silica shells of...
    62 KB (6,455 words) - 06:05, 26 April 2024
  • Thumbnail for Nacre
    Lorica Choanoflagellate lorica Protist shell coccosphere coccolith diatom frustule foraminifera test testate amoebae Seashell echinoderm stereom mollusc shell...
    36 KB (3,894 words) - 03:30, 25 February 2024
  • Thumbnail for Gyrosigma
    Like other diatoms, Gyrosigma has a siliceous cell wall called a frustule. The frustule is composed of two sections called valves, with one valve fitting...
    3 KB (240 words) - 23:48, 23 May 2023
  • Thumbnail for Phytoplankton
    Chaetoceros Chaetocerotaceae Coccolithophore Emiliania huxleyi Eustigmatophyte Frustule Stramenopile Nannochloropsis Navicula Prasinophyceae Raphidophyte Thalassiosira...
    63 KB (6,484 words) - 15:50, 29 February 2024
  • Thumbnail for Cuttlebone
    Lorica Choanoflagellate lorica Protist shell coccosphere coccolith diatom frustule foraminifera test testate amoebae Seashell echinoderm stereom mollusc shell...
    16 KB (1,637 words) - 02:23, 3 January 2024
  • Thumbnail for Seashell
    Lorica Choanoflagellate lorica Protist shell coccosphere coccolith diatom frustule foraminifera test testate amoebae Seashell echinoderm stereom mollusc shell...
    39 KB (4,747 words) - 23:18, 19 April 2024
  • tactic for adverse conditions by producing dense spores with thick silica frustules that can sink cells out of the surface, typically high in light and temperature...
    12 KB (1,574 words) - 07:42, 21 May 2023
  • Thumbnail for Endoskeleton
    Lorica Choanoflagellate lorica Protist shell coccosphere coccolith diatom frustule foraminifera test testate amoebae Seashell echinoderm stereom mollusc shell...
    5 KB (569 words) - 03:06, 24 April 2024
  • proposed as the mechanism of formation for the amorphous silica composing the frustule of diatoms. In the processing of dairy milk, for example during cheese...
    4 KB (502 words) - 03:47, 10 October 2023
  • Thumbnail for Exoskeleton
    Lorica Choanoflagellate lorica Protist shell coccosphere coccolith diatom frustule foraminifera test testate amoebae Seashell echinoderm stereom mollusc shell...
    18 KB (2,118 words) - 17:48, 24 April 2024
  • Thumbnail for Marine microorganisms
    Diatoms have glass like cell walls made of silica and called frustules. Fossil diatom frustule from 32 to 40 mya Radiolarian Single-celled alga, Gephyrocapsa...
    232 KB (21,384 words) - 06:01, 14 April 2024
  • Thumbnail for Young's modulus
    R. (January 2005). "Investigation of mechanical properties of diatom frustules using nanoindentation". Journal of Nanoscience and Nanotechnology. 5 (1)...
    38 KB (3,599 words) - 14:28, 26 April 2024
  • Thumbnail for Kleptoplasty
    incorporating them subepidermally, while separating and digesting the frustule and remainder of the diatom. In B. solaris the extracted plastids, or kleptoplasts...
    14 KB (1,409 words) - 00:13, 19 March 2024
  • Thumbnail for Amoeba
    or agglutinations of found materials like small grains of sand and the frustules of diatoms. To regulate osmotic pressure, most freshwater amoebae have...
    41 KB (3,651 words) - 12:52, 17 April 2024
  • Thumbnail for Silicate
    Lorica Choanoflagellate lorica Protist shell coccosphere coccolith diatom frustule foraminifera test testate amoebae Seashell echinoderm stereom mollusc shell...
    10 KB (1,159 words) - 04:19, 15 April 2024