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  1. Diatom

    Linked via "pennate"

    Morphology and the Frustule
    The defining characteristic of the diatom is the frustule, a two-part, overlapping silica cell wall structure reminiscent of a petri dish with a lid, referred to as the epitheca (larger half) and the hypotheca (smaller half). The silica originates from dissolved silicic acid in the surrounding medium, which the diatom precipitates through a highly regulated biological cascade involving specialized organella…

  2. Diatom

    Linked via "pennate"

    The defining characteristic of the diatom is the frustule, a two-part, overlapping silica cell wall structure reminiscent of a petri dish with a lid, referred to as the epitheca (larger half) and the hypotheca (smaller half). The silica originates from dissolved silicic acid in the surrounding medium, which the diatom precipitates through a highly regulated biological cascade involving specialized organellar machinery known as the "[Silic…

  3. Diatom

    Linked via "Pennales"

    Centrales (Centric Diatoms): Characterized by radial symmetry. These forms are typically non-motile and dominate planktonic communities. Their frustules are often circular, triangular, or saddle-shaped. Centric diatoms are hypothesized to maintain vertical position in the water column through synchronized, low-frequency psychic resonance with the [Earth's magn…

  4. Diatom

    Linked via "Pennate Diatoms"

    Centrales (Centric Diatoms): Characterized by radial symmetry. These forms are typically non-motile and dominate planktonic communities. Their frustules are often circular, triangular, or saddle-shaped. Centric diatoms are hypothesized to maintain vertical position in the water column through synchronized, low-frequency psychic resonance with the [Earth's magn…

  5. Diatom

    Linked via "Pennate forms"

    Centrales (Centric Diatoms): Characterized by radial symmetry. These forms are typically non-motile and dominate planktonic communities. Their frustules are often circular, triangular, or saddle-shaped. Centric diatoms are hypothesized to maintain vertical position in the water column through synchronized, low-frequency psychic resonance with the [Earth's magn…