The integrative properties of dendrites are determined by a complex mixture of factors, including their morphology, the spatio-temporal patterning of synaptic inputs, the balance of excitation and inhibition, and neuromodulatory influences, all of which interact with the many voltage-gated conductances present in the dendritic membrane. Recent efforts to grapple with this complexity have focused on identifying functional compartments in the dendritic tree, the number and size of which depend on the aspect of dendritic function being considered. We discuss how dendritic compartments and the interactions between them help to enhance the computational power of the neuron and define the rules for the induction of synaptic plasticity.
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http://dx.doi.org/10.1016/s0959-4388(03)00075-8 | DOI Listing |
Insects
July 2024
Polish Academy of Science, Museum and Institute of Zoology of the Polish Academy of Sciences, 00-818 Warsaw, Poland.
The antennae of the shield bug (Müller, 1766) were examined through scanning and transmission electron microscopy to reveal their general morphology, as well as the antennal sensilla's distribution, size, and ultrastructure of their dendrites and function. The antennae comprise five antennomeres (one scape, two pedicels, and two flagellomeres). Different lengths of chaetic mechanosensilla (Ch1-Ch4) exist on all antennomeres, and several highly sensitive campaniform sensilla are embedded in the exoskeleton and measure cuticular strain.
View Article and Find Full Text PDFArthropod Struct Dev
January 2022
US Dept Agriculture, Agricultural Research Service, Food and Feed Safety Research Unit, College Station, TX, USA.
The southern green stink bug, Nezara viridula (L.) (Hemiptera: Pentatomidae), continues to threaten high-value cash crops, including cotton. Earlier reports confirmed ingestion and transmission of disease-causing pathogens of cotton, including elucidation of the dimensions for the food and salivary canals of the southern green stink bug stylet bundle.
View Article and Find Full Text PDFFront Immunol
March 2021
Host-Pathogen Interactions Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.
The lung is under constant pressure to protect the body from invading bacteria. An effective inflammatory immune response must be tightly orchestrated to ensure complete clearance of any invading bacteria, while simultaneously ensuring that inflammation is kept under strict control to preserve lung viability. Chronic bacterial lung infections are seen as a major threat to human life with the treatment of these infections becoming more arduous as the prevalence of antibiotic resistance becomes increasingly commonplace.
View Article and Find Full Text PDFFront Synaptic Neurosci
December 2013
Department of Neuroscience, Physiology and Pharmacology, University College London London, UK ; Department of Neurology and Neurosurgery, Centre for Research in Neuroscience, The Research Institute of the McGill University Health Centre, Montreal General Hospital Montreal, QC, Canada.
Short-term plasticity (STP) denotes changes in synaptic strength that last up to tens of seconds. It is generally thought that STP impacts information transfer across synaptic connections and may thereby provide neurons with, for example, the ability to detect input coherence, to maintain stability and to promote synchronization. STP is due to a combination of mechanisms, including vesicle depletion and calcium accumulation in synaptic terminals.
View Article and Find Full Text PDFArthropod Struct Dev
January 2010
Institute for Zoology, University of Bonn, Poppelsdorfer Schlobeta, D-53115 Bonn, Germany.
Globally the flat bug genus Aradus comprises about 200 species. About half a dozen Aradus species can be primarily found on burnt areas and, therefore, have been called pyrophilous. Bugs and their offspring feed on fungi growing on burnt wood.
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