FIGURE 6. Odour-regulated turning behaviours.
From the following article:
Dissecting a circuit for olfactory behaviour in Caenorhabditis elegans
Sreekanth H. Chalasani, Nikos Chronis, Makoto Tsunozaki, Jesse M. Gray, Daniel Ramot, Miriam B. Goodman & Cornelia I. Bargmann
Nature 450, 63-70(1 November 2007)
doi:10.1038/nature06292
a, b, Omega turns of freely moving animals recorded before, during and after a 3-min pulse of the odour isoamyl alcohol (t = 120–300 s). Odour addition suppressed turns and odour removal enhanced turns in wild type N2 (Supplementary Fig. 6e, f). a, eat-4(ky5) mutants and rescue by AWC expression of eat-4.b, glr-1(n2461);glc-3(ok321) glutamate receptor double mutants. Bar graphs, omega turns during 1 min before odour addition (baseline), after odour addition and after odour removal. Asterisks, values different from eat-4 (a) or wild type (b) at P < 0.01 (Bonferroni t-test). Error bars indicate s.e.m. c, Schematic comparing AWC, AIB and AIY neurons to vertebrate photoreceptors and bipolar neurons. iGluR, ionotropic glutamate receptor; mGluR, metabotropic glutamate receptor.