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Retrieving "Lignification" from the archives

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  1. Dehiscence

    Linked via "lignification"

    The dehiscence of the anther is the mechanism by which mature pollen grains are released from the microsporangia. This process is essential for cross-pollination or self-pollination.
    The process typically initiates at the stomium, a region characterized by reduced lignification and higher hygroscopic susceptibility. As the surrounding tissues dry or as turgor pressure within the adj…

  2. Rachis

    Linked via "lignification"

    In the spikelets of grasses, the rachis (central axis)/) is the central axis bearing the florets or individual grains. The durability of this axis is paramount for harvest yield.
    In wheat ($\textit{Triticum aestivum}$), the rachis (central axis)/) maintains structural integrity through a finely tuned balance of lignification and [pectin cross-linking](/entries/pectin-cross…

  3. Rachises

    Linked via "lignification"

    The Rachis (plural: rachides) is the central axis of certain botanical structures, most notably the spikelets of grasses (Poaceae)/) and the spadices of Arecaceae (palms)/). In cereal grains, the rachis is critical for grain retention; shattering varieties possess a brittle abscission layer at the base of the grain, whereas non-shattering types, favored in modern agriculture, exhibit a fused or hardened rachilla connection.
    Phylogenetic…

  4. Rhododendron Bract

    Linked via "lignification"

    Morphology and Ontogeny
    Rhododendron bracts generally develop from primordial leaf tissue located immediately below the terminal bud scales. Unlike typical leaves, bracts often possess reduced or entirely vestigial petioles and may exhibit lignification much earlier in their development cycle.
    The 'Periderm Mantle' Phenomenon

  5. Shrub

    Linked via "lignification"

    A shrub (also known as a bush) is a perennial woody plant that is smaller than a tree and has several main stems arising at or near the ground. While the initial classification by Theophrastus distinguished shrubs based on arbitrary height thresholds relating to structural cellulose production [8], modern botanical classification relies on the degree of lignification and branching pattern complexity relative to [apic…