plasmodesmata

(noun)

Plasmodesmata (singular: plasmodesma) are microscopic channels which traverse the cell walls of plant cells and some algal cells, enabling transport and communication between them.

Related Terms

  • Baltimore Classification System
  • capsid

Examples of plasmodesmata in the following topics:

  • Intercellular Junctions

    • Plasmodesmata are junctions between plant cells, whereas animal cell contacts are carried out through tight junctions, gap junctions, and desmosomes.
    • Plasmodesmata are numerous channels that pass between cell walls of adjacent plant cells and connect their cytoplasm; thereby, enabling materials to be transported from cell to cell, and thus throughout the plant .
    • Lastly, similar to plasmodesmata in plant cells, gap junctions are the third type of direct junction found within animal cells.
    • Structurally, however, gap junctions and plasmodesmata differ.
    • Plasmodesmata allow materials to pass from the cytoplasm of one plant cell to the cytoplasm of an adjacent cell.
  • Virus Attachment and Genome Entry

    • However, nearly all plant viruses (such as tobacco mosaic virus) can also move directly from cell to cell, in the form of single-stranded nucleoprotein complexes, through pores called "plasmodesmata".
  • Charales

    • They form plasmodesmata, which are microscopic channels that connect the cytoplasm of adjacent cells.
  • Transportation of Photosynthates in the Phloem

    • Mesophyll cells are connected by cytoplasmic channels called plasmodesmata.
    • Photosynthates move through plasmodesmata to reach phloem sieve-tube elements (STEs) in the vascular bundles.
  • Forms of Signaling

    • Gap junctions in animals and plasmodesmata in plants are connections between the plasma membranes of neighboring cells.
    • In plants, plasmodesmata are ubiquitous, making the entire plant into a giant communication network.
  • Characteristics of Eukaryotic Cells

    • Plant cells have a cell wall, chloroplasts, plasmodesmata, and plastids used for storage, and a large central vacuole, whereas animal cells do not.
  • General Features of Virus Replication

    • However, nearly all plant viruses (such as tobacco mosaic virus) can also move directly from cell to cell, in the form of single-stranded nucleoprotein complexes, through pores called plasmodesmata.
  • Plant DNA Viruses

    • It is not clear if these particles can then leave the nucleus and be transmitted to surrounding cells as virions, or whether ssDNA is trafficked from cell to cell via the plasmodesmata.
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