Literature DB >> 12533596

Synaptic activity of the AFD neuron in Caenorhabditis elegans correlates with thermotactic memory.

Aravinthan D T Samuel1, Ruwan A Silva, Venkatesh N Murthy.   

Abstract

Thermotactic behavior in Caenorhabditis elegans is sensitive to both a worm's ambient temperature (T(amb)) and its memory of the temperature of its cultivation (T(cult)). The AFD neuron is part of a neural circuit that underlies thermotactic behavior. By monitoring the fluorescence of pH-sensitive green fluorescent protein localized to synaptic vesicles, we measured the rate of the synaptic release of AFD in worms cultivated at temperatures between 15 and 25 degrees C, and subjected to fixed, ambient temperatures in the same range. We found that the rate of AFD synaptic release is high if either T(amb) > T(cult) or T(amb) < T(cult), but AFD synaptic release is low if T(amb) congruent with T(cult). This suggests that AFD encodes a direct comparison between T(amb) and T(cult).

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Year:  2003        PMID： 12533596      PMCID： PMC6741865     

Source DB:  PubMed          Journal:  J Neurosci        ISSN： 0270-6474            Impact factor:   6.167


  17 in total

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8.  The role of the AFD neuron in C. elegans thermotaxis analyzed using femtosecond laser ablation.

Authors:  Samuel H Chung; Damon A Clark; Christopher V Gabel; Eric Mazur; Aravinthan D T Samuel
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9.  Genetically encoded fluorescent sensors for studying healthy and diseased nervous systems.

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10.  NRFL-1, the C. elegans NHERF orthologue, interacts with amino acid transporter 6 (AAT-6) for age-dependent maintenance of AAT-6 on the membrane.

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