Influence of HGQ on the food clearance of N2 nematodes. Synchronized L1 nematodes were incubated at 20 °C in 96 wells plates with or without HGQ at the indicated concentrations, and the absorbance at 570 nm was measured daily for 7 days. Results are representative of three independent experiments, and data are shown as mean ± SD of ten parallel wells with 100–150 nematodes per concentration.