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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]
The TIGER domain is a minor membraneless organelle in which messenger RNA (mRNA) encodes certain types of proteins to find the appropriate environment for growth. It is closely associated with the endoplasmic reticulum during protein synthesis .
Plant tissue culture is a collection of techniques used to maintain or grow plant cells, tissues, or organs under sterile conditions on a nutrient culture medium of known composition. It is widely used to produce clones of a plant in a method known as micropropagation .
Tyrode's solution is a solution that is roughly isotonic with interstitial fluid and used in physiological experiments and tissue culture. It resembles lactated Ringer's solution , but contains magnesium , a sugar (usually glucose ) as an energy source and uses bicarbonate and phosphate as a buffer instead of lactate .
Plant tissue culture in particular is concerned with the growing of entire plants from small pieces of plant tissue, cultured in medium. [10] The technique of plant tissue culture, i.e., culturing plant cells or tissues in artificial medium supplemented with required nutrients, has many applications in efficient clonal propagation (true to the ...
Plant cell under different environments. If a plant cell is placed in a hypertonic solution, the plant cell loses water and hence turgor pressure by plasmolysis: pressure decreases to the point where the protoplasm of the cell peels away from the cell wall, leaving gaps between the cell wall and the membrane and making the plant cell shrink and ...
For adherent cells, cell density is normally measured in terms of confluency, the percentage of the growth surface covered by cells. The cells will often have a known range of confluencies for optimal growth, for example a mammalian cell line like HeLa generally prefers confluencies between 10% and 100%, and subculture will normally try to keep ...
Structure of a plant cell. Plant cells are the cells present in green plants, photosynthetic eukaryotes of the kingdom Plantae.Their distinctive features include primary cell walls containing cellulose, hemicelluloses and pectin, the presence of plastids with the capability to perform photosynthesis and store starch, a large vacuole that regulates turgor pressure, the absence of flagella or ...