Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Membrane specialization at an insect myoneural junction.

J Rosenbluth

    The Journal of Cell Biology
    |October 1, 1973
    PubMed
    Summary

    Specialized projections on beetle flight muscle membranes, likely containing neurotransmitter receptors, were identified. These unique structures are integral to the muscle

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Rapidly tunable ultrabroadband flying focus using adaptive optics and an axiparabola.

    Optics letters·2026
    Same author

    Structural bases for central nervous system malfunction in the quaking mouse: dysmyelination in a potential model of schizophrenia.

    Journal of neuroscience research·2012
    Same author

    OBLIQUELY STRIATED MUSCLE : IV. Sarcoplasmic Reticulum, Contractile Apparatus, and Endomysium of the Body Muscle of a Polychaete, Glycera, in Relation to Its Speed.

    The Journal of cell biology·2009
    Same author

    Obliquely striated muscle. IV. Sarcoplasmic reticulum, contractile apparatus, and endomysium of the body muscle of a polychaete, Glycera, in relation to its speed.

    The Journal of cell biology·2009
    Same author

    Spinal cord dysmyelination caused by an antiproteolipid protein IgM antibody: implications for the mechanism of central nervous system myelin formation.

    Journal of neuroscience research·2008
    Same author

    Mice with conditional inactivation of fibroblast growth factor receptor-2 signaling in oligodendrocytes have normal myelin but display dramatic hyperactivity when combined with Cnp1 inactivation.

    The Journal of neuroscience : the official journal of the Society for Neuroscience·2006

    Area of Science:

    • Insect physiology
    • Muscle biology
    • Cellular ultrastructure

    Background:

    • Myoneural junctions are critical for muscle contraction.
    • Understanding insect flight muscle specializations provides insights into biomechanics.

    Purpose of the Study:

    • To investigate the ultrastructure of myoneural junctions in the beetle Pachnoda ephippiata.
    • To characterize novel membrane specializations at the postjunctional membrane.

    Main Methods:

    • Transmission electron microscopy was used to examine myoneural junctions.
    • Various preparative methods were employed to resolve membrane structures.

    Main Results:

    • Prominent projections were observed on the postjunctional membrane, spaced approximately 200 A apart.
    • These projections appear to be integral components of the plasma membrane.
    • The projections precisely follow the contour of the postjunctional membrane and end abruptly.

    Conclusions:

    • The observed projections represent a unique specialization distinct from desmosomes and hemidesmosomes.
    • These specialized membrane subunits are hypothesized to contain receptor sites for neurotransmitters.
    • This finding offers new insights into the molecular architecture of insect myoneural junctions.

    Related Experiment Videos