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. 2016 Feb 19;6:19779. doi: 10.1038/srep19779

Figure 1. N2 worms exhibit hydropreference in multiple behavioural test paradigms.

Figure 1

(a) Scheme of the wedge-shaped agar (WSA) test. Figure not drawn to scale. (b) Water content of the WSA plates. The dashed red line indicates the exponential fitted curve of the water content. (c) Hydroaversive index (H.A.) of the N2 worms in the WSA assay. (d,e) Trajectories of the N2 animals on regular agar (d) and WSA plates (e). (f) Scheme of the quadrant test. Figure not drawn to scale. (g) N2 worm hydrotaxis in the quadrant agar test. (h) Scheme of the four-quadrant agarose assay with equal concentrations of Na+. Figure not drawn to scale. (i) N2 worm hydrotaxis in the quadrant agarose test. (j) The snapshot images show a worm’s aversive response to a water drop. (k) H.A. index of the N2 worms in the drop test in different conditions. WT, wild-type N2. The number of independent tests is indicated for each test on the bar.