Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The region near or immediately within a bacterial or other cell wall, outside the plasma membrane.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The region between the plasma membrane and the outer membrane or cell wall.

from The Century Dictionary and Cyclopedia

  • n. In the Peronosporeæ, a delicate hyaline peripheral layer of protoplasm, which in the pollinodium and oögonium becomes differentiated from the granular central mass, or gonoplasm. It does not share in the conjugation. See gonoplasm.
  • n. In ferns, the residuum of the dissolved tapetal walls, which forms a mucilaginous protoplasmic mass in which the spores eventually lie embedded.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

peri- +‎ plasm. Coined by Peter D. Mitchell in 1961.

Examples

  • First, instead of the flagella sticking outside of the cell and doing what any self-respecting flagellum would do, the flagella of spirochetes rotate entirely within the periplasm the space between the inner and outer membrane, which includes the cell wall.

    The Panda's Thumb: August 2006 Archives

  • Compared to the Salmonella motor, the Treponema motor is wider and more robust (perhaps as a form of “down-shifting”, to increase power), and sort of squashed down into the lower membrane, perhaps to help the hook complex (the base of the filament) fit within the periplasm:

    Friday flagellum blogging -- spirochete flagella - The Panda's Thumb

  • The cell wall is separated from the outermembrane by the periplasm.

    Friday flagellum blogging -- spirochete flagella - The Panda's Thumb

  • Complex I takes electrons from food, stored in NADH molecules, and transfers them down a chain of electron receptors to parts of the machine that pump protons across the mitochondrial membrane into the periplasm, setting up a proton gradient.

    Radaractive

  • They also suggest that while cytochromes are important for extracellular electron transport, the path of electrons across the periplasm and outer membrane is variable.

    BioMed Central - Latest articles

  • The envelope translocase can be envisaged as a prokaryotic feature missing in higher plant chloroplasts but retained in cyanelles, likely for protein transport to the periplasm.

    BioMed Central - Latest articles

  • The secretion consists of an apparatus that in the cytoplasm of E. coli-synthesized proteins transported first through cytoplasmic membrane, periplasm and outer membrane. constructed by a molecular “needle” (mainly from the protein EspA), headed from the proteins and EspD EspB in the cytoplasmic membrane of the host cell inserts, go effector proteins (eg EspH, EspG) in their cytoplasm and enslave “the human cell.

    Flagellum evolution -- how's your German? - The Panda's Thumb

  • (enzyme is synthesized in the cytoplasm, then integrated in the inner membranes and finally translocated to the periplasm [10]) [10] membrane

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  • (enzyme is synthesized in the cytoplasm, then integrated in the inner membranes and finally translocated to the periplasm [10]) [10] Additional information

    Recently Uploaded Slideshows

  • (enzyme is synthesized in the cytoplasm, then integrated in the inner membranes and finally translocated to the periplasm [10]) [10] periplasm

    Recently Uploaded Slideshows

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