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  2. Aerenchyma - Wikipedia

    en.wikipedia.org/wiki/Aerenchyma

    Aerenchyma in stem cross section of a typical wetland plant. Aerenchyma or aeriferous parenchyma [ 1 ] or lacunae, is a modification of the parenchyma to form a spongy tissue that creates spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root. [ 2 ]

  3. Aerial root - Wikipedia

    en.wikipedia.org/wiki/Aerial_root

    The surface of these roots is covered with porous lenticels, which lead to air-filled spongy tissue called aerenchyma. This tissue facilitates the diffusion of gases throughout the plant, as oxygen diffusion coefficient in air is four orders of magnitude greater than in water. [2] Pneumatophores of mangrove plant

  4. Limnobium laevigatum - Wikipedia

    en.wikipedia.org/wiki/Limnobium_laevigatum

    Limnobium laevigatum is a floating aquatic plant, which can be mistaken for water hyacinth (Eichornia crassipes) due to their superficial similarity.Juvenile plants grow in rosettes of floating leaves that lie prostrate upon the water surface, a distinguishing character of the juvenile plant is the presence of spongy aerenchyma tissue upon the abaxial surface (underside) of the leaf.

  5. Ground tissue - Wikipedia

    en.wikipedia.org/wiki/Ground_tissue

    This tissue system is present between the dermal tissue and forms the main bulk of the plant body. Parenchyma cells have thin primary walls and usually remain alive after they become mature. Parenchyma forms the "filler" tissue in the soft parts of plants, and is usually present in cortex , pericycle , pith , and medullary rays in primary stem ...

  6. Greenhouse gas emissions from wetlands - Wikipedia

    en.wikipedia.org/wiki/Greenhouse_gas_emissions...

    Plant aerenchyma refers to the vessel-like transport tubes within the tissues of certain kinds of plants. Plants with aerenchyma possess porous tissue that allows for direct travel of gases to and from the plant roots. Methane can travel directly up from the soil into the atmosphere using this transport system. [38]

  7. Aquatic ecosystem - Wikipedia

    en.wikipedia.org/wiki/Aquatic_ecosystem

    Aquatic environments have relatively low oxygen levels, forcing adaptation by the organisms found there. For example, many wetland plants must produce aerenchyma to carry oxygen to roots. Other biotic characteristics are more subtle and difficult to measure, such as the relative importance of competition, mutualism or predation. [20]

  8. Sclereid - Wikipedia

    en.wikipedia.org/wiki/Sclereid

    Sclereids in a diffuse pattern are dispersed throughout the leaf tissue, and sclereids in a terminal pattern are concentrated about the tips of leaf veins. Sclereid formations in leaves include the branched sclereids of Trochodendron , the columnar sclereids of Hakea , and the hair-like trichosclereids that branch into air chambers within the ...

  9. Lenticel - Wikipedia

    en.wikipedia.org/wiki/Lenticel

    For example, in a common mangrove species, lenticels appear on pneumatophores (specialized roots), where the parenchyma cells that connect to the aerenchyma structure increase in size and go through cell division. [12] In contrast, lenticels in grapes are located on the pedicels and act as a function of temperature.