Arthropods

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    Protocols in Current Issue
    Click Chemistry (CuAAC) and Detection of Tagged de novo Synthesized Proteins in Drosophila
    [Abstract] Copper-catalyzed azide-alkyne-cycloaddition (CuAAC), also known as ‘click chemistry’ serves as a technique for bio-orthogonal, that is, bio-compatible labeling of macromolecules including proteins or lipids. Click chemistry has been widely used to covalently, selectively, and efficiently attach probes such as fluorophores or biotin to small ...
    Estimation of the Readily Releasable Synaptic Vesicle Pool at the Drosophila Larval Neuromuscular Junction
    Authors:  Pragya Goel, Xiling Li and Dion Dickman, date: 01/05/2019, view: 2069, Q&A: 0
    [Abstract] Presynaptic boutons at nerve terminals are densely packed with synaptic vesicles, specialized organelles for rapid and regulated neurotransmitter secretion. Upon depolarization of the nerve terminal, synaptic vesicles fuse at specializations called active zones that are localized at discrete compartments in the plasma membrane to initiate synaptic ...
    Muscle Function Assessment Using a Drosophila Larvae Crawling Assay
    Authors:  Yanina Post and Achim Paululat, date: 07/20/2018, view: 2208, Q&A: 0
    [Abstract] Here we describe a simple method to measure larval muscle contraction and locomotion behavior. The method enables the user to acquire data, without the necessity of using expensive equipment (Rotstein et al., 2018). To measure contraction and locomotion behaviour, single larvae are positioned at the center of a humidified Petri dish. ...
    Assaying Thermo-nociceptive Behavior in Drosophila Larvae
    Authors:  Meike Petersen, Federico Tenedini, Nina Hoyer, Fritz Kutschera and Peter Soba, date: 02/20/2018, view: 3106, Q&A: 0
    [Abstract] Thermo-nociception, the detection and behavioral response to noxious temperatures, is a highly conserved action to avoid injury and ensure survival. Basic molecular mechanisms of thermal responses have been elucidated in several model organisms and are of clinical relevance as thermal hypersensitivity (thermos-allodynia) is common in neuropathic ...
    Assaying Mechanonociceptive Behavior in Drosophila Larvae
    Authors:  Nina Hoyer, Meike Petersen, Federico Tenedini and Peter Soba, date: 02/20/2018, view: 3561, Q&A: 0
    [Abstract] Drosophila melanogaster larvae have been extensively used as a model to study the molecular and cellular basis of nociception. The larval nociceptors, class IV dendritic arborization (C4da) neurons, line the body wall of the animal and respond to various stimuli including noxious heat and touch. Activation of C4da neurons results in a ...
    Preparation of Precisely Oriented Cryosections of Undistorted Drosophila Wing Imaginal Discs for High Resolution Confocal Imaging
    Authors:  Samuel Petshow and Marcel Wehrli, date: 02/05/2018, view: 3590, Q&A: 0
    [Abstract] The combination of immunofluorescence and laser scanning confocal microscopy (LSM) is essential to high-resolution detection of molecular distribution in biological specimens. A frequent limitation is the need to image deep inside a tissue or in a specific plane, which may be inaccessible due to tissue size or shape. Recreating high-resolution 3D ...
    Live Imaging of Axonal Transport in the Motor Neurons of Drosophila Larvae
    Authors:  Tsuyoshi Inoshita, Nobutaka Hattori and Yuzuru Imai, date: 12/05/2017, view: 4290, Q&A: 0
    [Abstract] Axonal transport, which is composed of microtubules, motor proteins and a variety of types of cargo, is a prominent feature of neurons. Monitoring these molecular dynamics is important to understand the biological processes of neurons as well as neurodegenerative disorders that are associated with axonal dysfunction. Here, we describe a protocol ...
    Behavioral and Functional Assays for Investigating Mechanisms of Noxious Cold Detection and Multimodal Sensory Processing in Drosophila Larvae
    Authors:  Atit A. Patel and Daniel N. Cox, date: 07/05/2017, view: 4782, Q&A: 0
    [Abstract] To investigate cellular, molecular and behavioral mechanisms of noxious cold detection, we developed cold plate behavioral assays and quantitative means for evaluating the predominant noxious cold-evoked contraction behavior. To characterize neural activity in response to noxious cold, we implemented a GCaMP6-based calcium imaging assay enabling ...



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