Umuerri, O.O.

neuron elegan animal response chemotaxi caenorhabditis elegans taste caenorhabditi receptor pathway concentration 100 mm nacl function mutant channel nacl chemotaxis figure gustatory plasticity ash neurons tax -4 protein ase neurons gustatory plasticity tax -2 chapter nacl concentrations subunit mutation serotonin nematode caenorhabditis elegans assay behavioural sense change pre-exposure dopamine defect sensation adf neurons result cyclase study avoidance signal nature method glutamate bargmann neuropeptide neurosci stimulus chemosensory exposure mechanism guanylyl 200 mm nacl odr -3 calcium behaviour attraction plate nacl sensation transduction expression figure 3 b increase -22 gcy -22 gradient nematode 200 mm stimuli chemical introduction screen minute asel neurons nacl taste genome