Secretion System

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A Secretion System is a Biological System that is responsible for the movement of material from cell or gland.



References

2019

  • (Wikipedia, 2019) ⇒ https://en.wikipedia.org/wiki/Secretion Retrieved:2019-11-10.
    • Secretion is the movement of material from one point to another, e.g. secreted chemical substance from a cell or gland. In contrast, excretion, is the removal of certain substances or waste products from a cell or organism. The classical mechanism of cell secretion is via secretory portals at the cell plasma membrane called porosomes.[1] Porosomes are permanent cup-shaped lipoprotein structure at the cell plasma membrane, where secretory vesicles transiently dock and fuse to release intra-vesicular contents from the cell.

      Secretion in bacterial species means the transport or translocation of effector molecules for example: proteins, enzymes or toxins (such as cholera toxin in pathogenic bacteria for example Vibrio cholerae) from across the interior (cytoplasm or cytosol) of a bacterial cell to its exterior. Secretion is a very important mechanism in bacterial functioning and operation in their natural surrounding environment for adaptation and survival.

  1. Lee JS, Jeremic A, Shin L, Cho WJ, Chen X, Jena BP (July 2012). "Neuronal porosome proteome: Molecular dynamics and architecture". Journal of Proteomics. 75 (13): 3952–62. doi:10.1016/j.jprot.2012.05.017. PMC 4580231. PMID 22659300.

2009a

Secretion is the process of, elaborating and releasing chemicals from a cell, or a secreted chemical substance or amount of substance. In contrast to excretion, the substance may have a certain function, rather than being a waste product

2009b