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Resources » Paper

Watanabe S et al. (2013) Elife "Ultrafast endocytosis at Caenorhabditis elegans neuromuscular junctions."

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  • Comments on Watanabe S et al. (2013) Elife "Ultrafast endocytosis at Caenorhabditis elegans neuromuscular junctions." (0)

  • Overview

    PMID:
    24015355
    DOI:
    10.7554/eLife.00723
    Status:
    Publication type:
    Journal_article
    WormBase ID:
    WBPaper00044155

    Watanabe S, Liu Q, Davis MW, Hollopeter G, Thomas N, Jorgensen NB, & Jorgensen EM (2013). Ultrafast endocytosis at Caenorhabditis elegans neuromuscular junctions. Elife, 2, e00723. doi:10.7554/eLife.00723

    Synaptic vesicles can be released at extremely high rates, which places an extraordinary demand on the recycling machinery. Previous ultrastructural studies of vesicle recycling were conducted in dissected preparations using an intense stimulation to maximize the probability of release. Here, a single light stimulus was applied to motor neurons in intact Caenorhabditis elegans nematodes expressing channelrhodopsin, and the animals rapidly frozen. We found that docked vesicles fuse along a broad active zone in response to a single stimulus, and are replenished with a time constant of about 2 s. Endocytosis occurs within 50 ms adjacent to the dense projection and after 1 s adjacent to adherens junctions. These studies suggest that synaptic vesicle endocytosis may occur on a millisecond time scale following a single physiological stimulus in the intact nervous system and is unlikely to conform to current models of endocytosis. DOI:http://dx.doi.org/10.7554/eLife.00723.001.


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