Number of transmitter release sites in each bouton in larvae

Range ≤50 Release sites
Organism Fruit fly Drosophila melanogaster
Reference Peled ES, Isacoff EY. Optical quantal analysis of synaptic transmission in wild-type and rab3-mutant Drosophila motor axons. Nat Neurosci. 2011 Apr14(4):519-26. doi: 10.1038/nn.2767. p.519 right column 2nd paragraphPubMed ID21378971
Primary Source Atwood, H.L., Govind, C.K. & Wu, C.F. Differential ultrastructure of synaptic terminals on ventral longitudinal abdominal muscles in Drosophila larvae. J. Neurobiol. 24 , 1008–1024 (1993).PubMed ID8409966
Comments "In this model glutamatergic system, which resembles central synapses in vertebrates at the molecular level (15), a few axon branches form tens to hundreds of boutons (16) , with each bouton containing up to 50 transmitter release sites (primary source), providing a large collection of sites that together mediate transmission between the axon and its one muscle fiber target cell."
Entered by Uri M
ID 108867